HYM. RES. J. Vol. 12(1), 2003, pp. 102-124 A Peculiar New Genus of Locally Abundant Australian Thynninae (Hymenoptera: Tiphiidae) Lynn S. Kimsey Bohart Museum of Entomology, Department of Entomology, University of California, Davis, CA 95616, USA, email: [email protected] — Abstract. The new thyronine tiphiid genus Hathynnus Kimsey is described from southern and eastern Australia, based on the species Thynnus pygmaeus Turner (type of the genus), Thynnus rubromaculatus Turner, and 15 new species: Hathynnus aestus, aquilonius, austrinus, cardaleae, cobarensis, earos, eyrensis,fnscatns, moorensis, nanus, Occidentalls, ovaritis,piligaensis, striatus and theros. Hathynnus rubromaculatus (Turner) and H. pygmaeus (Turner) are new combina- tions. Turner (1910) placed Thynnus rubroma- female metasomal sternum VI, ligulate culatus Turner and Thynnus pygmaeus male hypopygium, odd laterally com- Turner among other species, in the genus pressed and slender genital capsule, ob- Asthenothynnus Turner. Asthenothynnus solescent gonobase, and arcuate penis was later synonymized under Aeolothyn- valves. nus Ashmead by Brown (1997) and as dis- Hathynnus does not show particularly cussed by Kimsey (1999). However, rub- close relationships to other thynnine gen- romaculatus, pygmaeus and several unde- era, although it shares some apomorphies scribed species lack a number of diagnos- with Arthrothyiuuts Brown and Clulothyn- tic features of Aeolothynnus, including, in nus Brown. These three genera have the the male, the ventrally grooved hypopy- brushy basal labial palpomeres, and the gium, elongate apical prementum brush, gonobase reduced in Arthrotln/nnus and nearly asetose stipes, vertex with red sub- Chilothynnus to a narrow basal ring and in lateral spot, and laterally notched pronotal Hathynnus obsolescent, reduced to a nar- carina. Females of these species lack a W- row membranous rim. Hathynnus can be shaped transverse carina across the first distinguished from these genera in the metasomal tergum, lack an elongate tuft males by the ligulate hypopygium (api- on either side of the epipygial plate and cally or at least laterally dentate in Chilo- lack the accompanying tuft of setae on the thynnus and Arthrotln/nnus), strongly lat- adjacent sternum typical of Aeolothynnus. erally compressed male genital capsule, Thus a new genus, Hathynnus, is proposed aedeagus with distinctive ventral expan- for these species. Preliminary phylogenet- sion, ecarinate epipygium, obsolescent an- ic analyses of relationships among the tennal lobes, cylindrical flagellomeres Australian genera places Hathynnus as (versus arcuate), and in females by the basal to the Iszvaroides group of genera, narrow, impunctate pygidium and apical which includes Iszvaroides Ashmead, Aspi- metasomal sternum. There is also a super- dothynnus Turner, Doratithynnus Turner ficial resemblance to Aeolothynnus as the and Epactiothynnus Turner among other males and females of both taxa are small genera. Autapomorphies of Hathynnus in- to tiny wasps, which can be found in great clude the elongate and strongly narrowed abundance on flowering Eucalyptus. Volume 12, Number 1, 2003 103 MATERIALS AND METHODS or without impunctate medial longitudi- For the sake of brevity the abbreviation nal carina or welt, apical truncation nar- "MOD" is used for midocellus diameter rower than distance between antennal and "PD" for puncture diameter as a mea- sockets; antennal lobes obsolescent; hy- sure of punctation density. Ocellocular postomal plate large, with occipital and distance is the minimum distancebetween hypostomal carinaebroadly separated; sti- the hindocellus and the closest eye mar- Pes arcuate, with short marginal fringe; gin, measured in midocellus diameters, basal palpal segments fringed, with dense The aedeagus in this group consists of a erect setae; flagellum without tyloids, first dorsal column with abbreviated apical and second flagellomeres less than twice "strap" or lobe, and ventral expansion as long as broad; vertex without red spot that extends nearly the entire length ofthe between hindocellus and eye. Mesosoma: aedeagus. The volsella lies across the base pronotal disk with anterior margin ofthe paramere and is narrowed medially, marked by transverse swelling or broad with an enlargement or lobe on the dorsal ridge, ridge withoutsublateralindentation and ventral ends. Clypeal dimensions are or notch; mesopleuron with scrobal sulcus measured by comparing the greatest present and extending across mesopleu- width with the length measured medially ron; propodeum sloping obliquely from from the dorsal margin to the apical mar- rnetanotum to petiolar socket; coxae glob- gin. Finally, the interantennal distance is ular and finely setose; legs unmodified, measured from the edge of the inner rims Metasoma: tergum I about as broad as of the antennal sockets. l°ng, gently convex subapically, sternum I Type and non-type specimens werebor- medially flat to convex; terga I-VI and rowed from and are deposited in the fol- sterna II-V with subapical transverse sul- lowing collections: ADELAIDE—South cus broadly U-shaped; terga III-V without Australian Museum, Adelaide, Australia subspiracular sulcus; epipygium with Ion- CD. B. Hirst); BRISBANE—Queensland gitudinal medial impunctateband and im- Museum, Brisbane, Australia (C. Burwell); punctate convex apex; hypopygium ligu- CANBERRA— Australian National Insect late (as in Figs. 32, 33). Genital capsule: Collection, CSIRO, Canberra, Australian strongly compressed laterally (as in Figs. Capitol Territory (J. Cardale); COLLEGE 26' 27)/ gonocoxa dorsoapically produced STATION—Entomology Collection, Texas into single lobe; gonobase (basal ring) ob- A&M Universit—y, College Station, USA (E. solescent, remains broadly attached to Riley); DAVIS Bohart Museum of Ento- gonocoxa in lateral view as narrow mem- mology, University of Californ—ia, Davis, branous rim; paramere apically rounded USA (S. L Heydon); LONDON the Nat- to subacute; aedeagus with short apical ural History Museum, Lo—ndon, England l°be and well-developed ventral expan- (S. Lewis); MELBOURNE Museum Vic- sion; volsella broad, with ventral and dor- toria, Melbourne, Australia (Ken Walker); sal lobes; penis valve slender, narrowly ta- PERTH—Western Australian Museum, pering and apically acute or capitate, often Perth (T. Houston); SYDNEY—Australian bending strongly ventrally. Color: black to Museum, Sydney, New South Wales (M. dark brown, with yellow to whitish, and Moulds). Type repositories are indicated orange or—red markings, by the city of the collection in parentheses Female. Mesosoma: pronotal disk with- following the type data. out medial sulcus; scutellum without an- MalH„ea.t,—h.ByondnyuslKeinmgtshey,6-8nemwmgen(uFisg. 2). autrseeurnaoslimsle;ydirnanolettlsaoebnpeoa;trupamrtoeopdblsbeoyulreposicnt/enfeltax.tc;eMfpeottraeisncoocmxoaab:e_ Head (underside as in Fig. 3): clypeus with pygidium elongate, parallel-sided and 104 Journal of Hymenoptera Research aestus aquilonius Daustrinus • cardaleae Ocobarensis Cairns JCcaws imeyrensis fuscatus moorensis * Ka/ZU5 * occidentalis Sorarius <§>piligaensis + pygmaeus wrubromaculatus O striatus ®theros + mM±^° Esperance Fig. 1. Distributionmap ofHathynnus species in Australia. usually narrow, apex narrowly rounded new species; H.fuscatus Kimsey, new spe- or truncate (Figs. 34-36); sternum VI 2-6X cies; H. })ioorensis Kimsey, new species; H. as long as wide at apex, apex narrowly nanus Kimsey, new species; H. occidentalis rounded or tr—uncate (Figs. 30, 31). Kimsey, new species; H. orarius Kimsey, Type species. Thynnus pygmaeus Turner new species; H. piligaensis Kimsey, new new 1908. — species; Thynnus pygmaeus Turner, Etymology. The generic name, Hathyn- combination; Thynnus rubromaculatus nus, is a nonsense combination of letters Turner, new combination; H. striatus new adde—d to the commonly used suffix in this species, and H. theros Kimsey, new spe- tribe "thynnus". The name is assumed cies. — to be masculine. — Distribution. The genus apparently oc- Included species. Hathynnus aestus Kim- curs in all Australian states except North- sey, new species; H. aquilonius Kimsey, ern Territory—and Tasmania (Fig. 1). new species; H. austrinus Kimsey, new Discussio)i. The most unusual external species; H. cardaleae Kimsey, new species; features of Hathynnus are the ligulate male H. cobarensis Kimsey, new species; H. earos hypopygium and the narrowed female Kimsey, new species; H. eyrensis Kimsey, apical metasomal segment. A similar con- Volume 12, Number 1, 2003 105 figuration of the male hypopygium is seen erally compressed genital capsule, aedea- only in some South American genera in- gus with reduced apical lobe and large cluding Zeena Kimsey and Mesothynnus ventral expansion, obsolescent gonobase Kimsey. Additional diagnostic features in and subspiracular sulcus restricted to me- the males include the absence of tyloids tasomal terga I and II. Females have the on the flagellomeres, flagellomeres less apical metasomal sternum generally elon- than twice as long as broad, strongly lat- gate and strongly narrowed apically. KEY TO MALES OF THE SPECIES OF HATHYNNUS 1 Clypeus without medial longitudinal, impunctate carina or welt (Fig. 7) 2 - Clypeus with medial longitudinal, impunctate carina or welt (Figs. 4-6) 6 2 Propodeal punctures contiguous and transversely striatiform above petiolar socket 3 - Propodeal punctures circular and separated by 1 PD or more above petiolar socket 4 3 Face without pale markings, or pale markings restricted to small spots on vertex; para- mere narrowly tapering and apically acute (Fig. 14); hypopygium broadly rounded apically, apicomedially flattened or slightly indented eyrensis Kimsey - Face extensively marked with white or yellow bands and spots along eye margins, on clypeus and vertex and above antennal sockets; paramere broad and apically broadly rounded (Fig. 23); hypopygium apicomedially angulate or produced . . striatus Kimsey MOD 4 Propodeum with medial yellow to pale yellow spot; ocellocular distance 3.5 wide; paramere apically broadly rounded (Fig. 22) rubromaculatus (Turner) - Propodeum withoutmedial yellow to pale yellow spot; ocelloculardistance4 MODwide; paramere apically acute or truncate 5 5 Flagellomere I longer thanbroad; legsred toorange;paramereapicallytruncate;aedeagus with lateral projection and ventral expansion as wide or wider than dorsal column (Fig. 12) cobarensis Kimsey - Flagellomere I as long as broad; legs brown; paramere apically acute; aedeagus without lateral projection and ventral expansion generally narrower than dorsal column (Fig. 11) cardaleae Kimsey 6 Interantennal area with medial longitudinal carina arid elevated, with V-shaped swelling or ridge (as in Fig. 5); frons stronglyconvex, one-third toone-halfaswideaseyewidth in side view 7 - Interantennalarea withoutmedial longitudinal carina,notelevatedandwithoutV-shaped swelling or ridge; frons usually flattened, less than one-third as wide as eye width in side view 9 7 Facial punctures irregularly spaced, 1-4 PD apart (Fig. 5); propodeum with punctures about 1 PD apart; clypeus black, without yellow markings; face without yellow band along inner eye margin; propodeum without lateral yellow spot . . . occidentalis Kimsey - Facial punctures dense and nearly contiguous (as in Fig. 6); propodeal punctures contig- uous above petiolar socket; clypeus half or more yellow; face with partial or complete yellow band along inner eye margin; propodeum with large lateral yellow spot 8 8 Face with continuous yellow band along inner eye margin from clypeus to hindocelli; clypeus mostly yellow except for black mark near anterior tentorial pit moorensis Kimsey - Face with yellow band along inner eye margin interrupted medially; clypeus about half yellow, largely black medially orarius Kimsey 106 Journal of Hymenoptera Research 9 Propodeal punctures above petiolar socket striatiform, without polished interspaces and often between transverse ridges or striae 10 - Propodeal punctures above petiolar socket circular, not striatiform with polished inter- spaces and without transverse ridges or striae 11 10 Propodeum with large yellow medial spot; interantennal area broadly rounded, without medial carina piligaensis Kimsey - Propodeum without yellow medial spot; interantennal area with medial longitudinal ca- rjna austrinus Kimsey 11 Frons convex in profile; scutal punctures 0.5-1.0 PD apart; facial punctures 0.5 PD apart or less 12 - Frons flattened in profile; scutal punctures 1-3 PD apart; facial punctures usually 1-3 PD 14 apart 12 Propodeum highly polished, with tiny circular punctures separated by polished inter- spaces, punctures more than two PD apart nanus Kimsey - Propodeum not appearing polished, with large circular or striatiform punctures 0.5-1.0 PD 12 apart 13 Propodeal punctures striatiform; eye with incomplete yellow stripe along inner margin; ocellocular distance less than 4 MOD wide thews Kimsey - Propodeal punctures circular; eye with complete yellow stripe along inner margin; ocel- MOD locular distance more than 4 wide aestus Kimsey 14 Hypopygium apicomedially notched or indented (Fig. 33); frons with punctures contig- uous to 0.5 PD apart aquilonius Kimsey - Hypopygium apically rounded, margin convex (as in Fig. 32); frons with punctures 1 PD apart or more 15 15 Propodeum without pale spots, or only with traces of lateral spot; paramere apically narrowly acute, apical half slender and almost digitate (Fig. 15) fuscatus Kimsey - Propodeumwith yellowish medial and lateral spots;parameresubtriangularwithbroadly rounded or acute apex, apex not slender or digitate (as in Figs. 13, 21) 16 16 Sternum I strongly bulging medially; clypeus with small punctures about 0.5 PD apart near dorsal margin, nearly impunctate elsewhere; frons punctures shallow, 1-3 PD apart pygmaeus Turner - Sternum I flattened medially; clypeus with contiguous small punctures near dorsal mar- gin,becoming largerand 0.5-1.0 PDelsewhere; frons puncturesclearlyimpressed,0.5- 1.0 PD apart earos Kimsey Hathynnus aestus Kimsey, new species 1.0 PD apart; clypeus greatest width twice MOD — Figs. 1, 8 length; interantennal distance 2.6 Male. Body length 7 mm. Head: clype- wide; ocellocular distance 4.8 MOD; fla- us with short, impunctate, medial longi- gellomere I as long as broad; flagellomere tudinal welt, clypeal punctures smaller on II 1.4X as long as broad; flagellomeres III- upper third than on frons, remainder only IV 1.5X as long as broad; flagellomere XI slightly smaller than on frons, punctures twice as long as broad. Mesosoma: prono- 0.5-1.0 PD apart; frons with punctures tal, scutal and scutellar punctures 2-3 PD 0.5-1.0 PD apart, impunctate between eye apart; metanotum nearly impunctate; pro- and antennal socket, except band of small podeal punctures circular and nearly con- and nearly contiguous punctures right tiguous, without transverse ridges or stri- along eye margin; vertex punctures 0.5- ae above petiolar socket; mesopleural Volume 12, Number 1, 2003 107 punctures nearly contiguous dorsally, most closely resembles aquilonius based on with broad subventral impunctate band. the closely punctate clypeus and frons, Metasoma: terga and sterna finely shagree- and penis valves more than two-thirds as ned, punctures obscure, 3-4 PD apart; epi- long as aedeagus, and nanus based on the pygium with impunctate medial longitu- circular and not striatiform propodeal dinal band and irregular, large punctures punctures and red legs. Additional diag- PD laterally, 0.5-1.0 apart. Genital capsule nostic features include the ocellocular dis- MOD (Fig. 8): paramere broadly triangular, with tance 4.8 and propodeal punctures rounded apex; volsella with large, acute nearly contiguous medially. ventral lobe, more than half as long as paramere; aedeagus with ventral expan- Hathynnus aquilonius Kimsey, new sion as wide as primary column; penis species valves reaching apex of ventral aedeagal — Figs. 1, 9 expansion. Color: black, with yellow and Male. Body length 5.5 mm. Head: clyp- orange markings; face with yellow band eus with short longitudinal, impunctate, along eye margin and ventral margin of medial carina, punctures similar in size to clypeus, with yellow spot adjacent to each those on frons, punctures contiguous to antennal socket; mandibles yellowbasally, 0.5 PD apart; frons with punctures 1-4 PD becoming reddish brown apically; gena apart between eye and antennal socket; with yellow spot behind eye margin and vertex punctures irregular, 0.5-1.0 PD yellow band extending part way along apart; clypeus greatest width twice length; MOD posterior eye margin from mandible; interantennal distance 2.6 wide; pronotum with transverse anterior and ocellocular distance 4.2 MOD; flagello- posterior yellow bands; tegula yellow; mere I 1.2x as long as broad; flagellomere scutum, scutellum and metanotum with II 1.4X as long as broad; flagellomeres III- large medial yellow spot; propodeum IV 1.6X as long as broad; flagellomere XI with small sublateral yellow spot; meso- 2.3X as long as broad. Mesosoma: pronotal, pleuron with anterior U-shaped yellow scutal and scutellar punctures 2-4 PD spot and posterior ovoid one; mid and apart; metanotum nearly impunctate; pro- hindcoxae with two dorsal longitudinal podeal punctures striatiform and contig- yellow bands; terga II—VI with lateral uous to 0.5 PD apart; mesopleural punc- comma-shaped yellow mark; terga II—III tures 0.5-1.0 PD apart below wing fossa, reddish brown dorsally; sterna II-V with with subventral broad impunctate band. small yellow lateral mark; legs reddish Metasoma: terga and sterna finely shagree- brown with yellow mark near apex of fore ned, punctures obscure, 3-4 PD apart; epi- and midfemora; wing membrane untint- pygium with impunctate medial longitu- ed, costa and stigma yellowishbrown, rest dinal band, and irregular large punctures of veins b—rown. laterally, 0.5-1.0 PD apart. Genital capsule Female. Unkn—own. (Fig. 9): paramere dorsal margin angulate Type material. Holotype 6: Western subapically, with subacute apex; volsella Australia: 5 km n Hopetoun, 27 Dec. 1994, with large, flat, round ventral lobe; aedea- 33°41.612S 120°11.244E, R. B. & L. S. Kim- gus with ventral expansion narrower than sey, ex Eucaly—ptus, WA122701 (PERTH). dorsal column; penis valve longer than Etymology. The species name, aestus, ventral expansion. Color: black, with yel- refers to the presence of this wasp in the low and orange markings; face with yel- summer; Lati—n, masculine adjective. low mark along lower inner eye margin Discussion. This is one of eight species and along dorsal eve margin near hindo- with a short, longitudinal medial clypeal celli; mandible yellow, becoming reddish ridge or welt. Among these species, aestus brown apically; posterior eye margin with 108 Journalof Hymenoptera Research short interrupted yellowband alonglower scutellar and metanotal punctures 4-6 PD margin; pronotum with transverse anteri- apart; propodeal punctures circular and or and posterior spots; legs dark brown 0.5-1.0 PD apart; mesopleural punctures becoming paler on tibiae and tarsi; pro- 1.0 PD apart, except impunctate in broad, podeum with tiny posterolateral yellow subventral band. Metasoma: terga and ster- spot; terga and sterna II-V with small lat- na polished, punctures obscure, 4-6 PD eral yellow spot; wing membrane untint- apart; epipygium with impunctate medial ed, costa and stigma yellowishbrown, rest longitudinal band, and irregular large of veins b—rown. punctures laterally, 0.5-1.0 PD apart. Gen- Female. Unkn—own. ital capsule (Fig. 10): paramere posterior Type material. Holotype 6: Queens- margin strongly convex, with subtruncate land: Carnarvon National Park, Mt. Mof- apex; volsella ventral lobe broad, flat and fatt, 24°52.26S 148°01.19E, Irwin & Gai- apical angle subacute; aedeagus with ven- mari, 22 Nov.—1995 (BRISBANE). tral lobe about as broad as dorsal column; Etymology. The name, aquilonius, refers penis valve more than half as long as ae- to the most northerly distribution of this deagus. Color: black to brown, with pale species relative to others in the genus; Lat- yellow markings; face with yellow band in, masculine—adjective. along inner eye margin, with yellow spot Discussion. H. aquilonius shares the adjacent to each antennal socket and clyp- dense punctation of the clypeus and frons eus submedially; mandible yellow basally and long penis valves withaestus. The two becoming reddish brown apically; gena species differ in coloration; aquilonius has with short yellow band along lower pos- fewer pale markings and lacks the com- terior eye margin and oval mark behind plete pale band along the inner eye mar- upper eye margin; pronotum with trans- gin ofaestus, a feature also seeninfuseatus, verse anterior and posterior yellow bands; thews, occidentalis and orarius. Additional scutum, scutellum and metanotum with diagnostic features of aquilonius are the large medial yellow spot; tegula yellow; ocellocular distance 3.8 MOD, paramere mesopleuron with large U-shaped yellow with angulate dorsal margin, and volsella anterior spot and posterior ovoid one; pro- with a large, ovoid ventral lobe. podeum with sublateral yellow spot; cox- ae with one or two longitudinal dorsal Hathynnunsewaiistrinus Kimsey, yellow bands; femora basally dark brown, species apically reddish brown or yellow; tibiae — Figs. 1, 10 and tarsi reddish brown; terga II—VI with Male. Body length 4.5-6.0 mm. Head: comma-shaped yellow lateral spot; ster- clypeus with impunctate, longitudinal, num II—IV with small pale lateral spot; medial welt reaching apex, punctures wing membrane untinted, costa and stig- smaller than on frons, punctures 0.5-1.0 ma brown, paler medially, rest of veins PD apart; frons with punctures 0.5-1.0 PD brown. — apart, impunctate between eye and anten- Female. Body length 2-4 mm. Head: nal socket; vertex punctures 0.5-1.0 PD parallel-sided in front view to bulging apart, dorsolaterally nearly impunctate; dorsolaterally, with one long hair above MOD interantennal distance 2.3 wide; each eye and eye-sized oval depression clypeus greatest width 1.8X length; ocel- behind eye. Mesosoma: pronotal disk with- locular distance 3.8 MOD; flagellomere I out medial sulcus; scutellum without an- 1.2X as long asbroad; flagellomere II 1.6X teromedial lobe; propleuron flat; forecoxae as long asbroad; flagellomeres III—IV 1.7X not separated by pit; metanotum obsoles- as long as broad; flagellomere XI twice as cent. Metasoma: pygidium with elongate, long as broad. Mesosoma: pronotal, scutal, narrow and parallel-sided carina-enclosed Volume 12, Number 1, 2003 109 posterior plate, apex broadly truncate or PD apart; metanotum nearly impunctate; medially notched, with lateral flap; ster- propodeal punctures circular and 0.5-1.0 num VI as long as broad, apex broadly PD apart; mesopleural punctures nearly rounded. — contiguous below wing fossa, sparser and Type material. Holotype 6: Western 0.5-1.0 PD apart ventrally and posteriorly, Australia: 20 km w Esperance, 33°43'S with broad subventral impunctate band. 121°25'E, 27 Dec. 1994, R. B. & L. S. Kim- Metasoma: terga and sterna finely shagree- sey, ex Eucalyptus, WA122706 (PERTH), ned, punctures obscure and 4-6 PD apart; Paratypes: 46* 6\ 79 9, same data as ho- epipygium with impunctate medial lon- lotype (DAVI—S, PERTH). gitudinal stripe, and irregular large punc- Etymology. The name austrinus refers tures laterally, 0.5-1.0 PD apart. Genital to the southern distribution of the species capsule (Fig. 11): paramere subtriangular, in Australia;—Latin, masculine adjective. with acute apex, dorsal margin strongly Discussion. This species is one of four, convex; volsellar dorsal lobe rounded, including Occidentalls, moorensis andorarius ventral lobe ovoid, with angled apex; ae- that have a strongly developed longitudi- deagus with ventral expansion as broad as nalclypealcarina. Unlike the first twospe- or somewhat narrower than dorsal col- cies, austrinus does not have the interan- umn; penis valve slender and less than tennal area elevated with a V-shaped ca- halfas long as aedeagus. Color: black, with rina or ridge, and the propodeal punctures whitish and brown markings; mandible are circular and separated, not striatiform whitish, with reddish apex; face with thin, and contiguous. Other diagnostic features whitish band along inner eye margin ex- of austrinus include the paramere with an tending dorsally toward, butnot reaching, angulate dorsal margin and subtruncate hindocellus; posterior eye margin with apex, and aedeagus withbroad ventral ex- whitish band extending nearly halfwayup pansion. H. austrinus differs from orarius eye and small spot above; pronotum with in the less densely punctate frons and whitish band along anterior and posterior clypeus, and propodeal punctures circular margins; tegula brown; scutum with and not striate. ovoid whitish spot between notauli; scu- tellum with triangular medial spot and Hathynnus cardaleae Kimsey, smaller anterolateral one; metanotum new species whitish medially; propodeum with whit- — !8S' ' ish lateral spot; mesopleuron with irregu- Male. Body length 4.0-4.5 mm. Head: lar anterior whitish spot; coxae, mid and clypeus without longitudinal medial cari- hindfemora dark brown; forefemur dark na or welt, punctures contiguous medially brown, with brownish yellow apex; restof to 0.5 PD apart; frons with punctures 0.5- legs brow—n. 1.0 PD apart, becoming nearly impunctate Female. Unkn—own, between eye and antennal socket; vertex Type material. Holotype 6: Australian punctures 0.5-1.0 PD apart; clypeal apex Capital Territory: Canberra, 4-10 fan. equal to interantennal distance and 0.33 1999, Wharton & Woolley, malaise trap clypeal width; interantennal distance 2.8 (CANBERRA). Paratype, 1 6, same data MOD; clypeus greatest width 2.2X length; as holotype (—COLLEGE STATION), ocellocular distance 4 MOD; flagellomere Etymology. The species is named in I 1.2x as long as broad; flagellomere II honor of Jo Cardale who has made so 1.5X as long as broad; flagellomeres III- much of this—research possible. IV 1.4-1.6X as long as broad; flagellomere Discussion. H. cardaleae resembles cob- XI 1.7X as long as broad. Mesosoma: pro- arensis and rubromaculatus based on the notal, scutal and scutellar punctures 1-3 lack of a clypeal carina, frons punctures no Journalof Hymenoptera Research Fig. 2. Side view of male Hathynnus cobarensis Kimsey, with closesthindleg removed. less than 2 PD apart, flagellomere III less PD apart; clypeus greatest width 3.2X than 1.8X as long as broad, propodeum length; ocellocular distance 4 MOD; fla- with circular punctures, paramere with gellomere I as long as broad; flagellomere acute apex and penis valves longand slen- II 1.6X as long as broad; flagellomeres III- der. It differs from these species in having IV 1.7-1.8X as long as broad; flagellomere brown legs (not red), propodeal punctures XI 1.8x as long as broad. Mesosoma: pro- generally less than 1 PD apart, clypeus notal, scutal and scutellar punctures 2-5 without yellow markings, ocellocular dis- PD apart; metanotum nearly impunctate; tance 4 MOD wide and clypeus about propodeal punctures 0.5-1.0 PD apart; twice as broad as long. The type speci- mesopleural punctures 0.5-1.0 PD apart mens are darkly colored, resembling fus- below wing fossa, becoming sparser ven- catus, which differs in having a well-de- trally and posteriorly. Metasoma: terga and veloped clypeal carina. sterna finely shagreened, punctures ob- scure, 4-6 PD apart; epipygium with im- Hathynnunsecwobarensis Kimsey, punctate medial longitudinal stripe, and species irregular large punctures laterally, 0.5-1.0 Figs. 1, 2, 12 PD apart. Genital capsule (Fig. 12): para- Male—Body (Fig. 2) length 5.0-6.5 mm. mere subtriangular, with truncate apex; Head: clypeus with longitudinal medial volsella dorsal lobe bilobate, ventral lobe welt becoming obsolescent on lower third elongate, with sharply angled apex; ae- of clypeus, punctures tiny and nearly con- deagus with ventral expansion asbroad as tiguous medially to nearly impunctate lat- or broader than dorsal column; penis erally; frons with punctures 1-3 PD apart valve slender and more than two-thirdsas becoming nearly impunctate between eye long as aedeagus. Color: black, with yel- and antennal socket; vertex punctures 1-4 low and orange markings; clypeus yellow, Volume 12, Number 1, 2003 HI with partial medial longitudinal black nus, but have few other similarities. A stripe and dorsal margin black between number of species, including cobarensis, tentorial pits; mandible yellow, with red- rubromaculatus and striatus, lack a medial dish apex; face with yellow band along in- clypeal carina and are sparsely punctate, ner eye margin extending dorsally to- with the clypeal punctures well separated ward, but not reaching hindocellus, and and the propodeal punctures circular and large yellow spot above and between eye separated, not striatiform nor contiguous, and antennal socket, some specimenswith The male genital capsule is distinctive in tiny yellow spot in middle of vertex; pos- cobarensis, with a basally very broad and terior eye margin with yellow band ex- apically truncate paramere, aedeagus with tending nearly halfway up eye and elon- ventral expansion almost twice as wide as gate dorsal yellow spot; pronotum with dorsal column, and slender dorsally bilo- yellow band along anterior and posterior bate volsella. This species can be readily margins; tegula yellow on inner half; scu- separated from other species lacking a turn with large rectangular yellow spot clypeal carina by the male genitalia, between notauli and yellow band along subventral margin; scutellum with large Hathynnus earos Kimsey, new species medially lobed medial spot and smaller — ^1SS- 1/13 anterolateral one; metanotum yellow me- Male. Body length 3-4 mm. Head: clyp- dially and along anterior margin; propo- eus with longitudinal, medial carina, deum with large yellow lateral spot ex- punctures slightly smaller than on frons, tending toward midline; mesopleuron punctures 0.5-1.0 PD apart dorsally be- with large irregular anterior and oval pos- coming nearly impunctate laterally; frons terior yellow spots; mid and hindcoxae with punctures 1-3 PD apart becoming yellow dorsally; fore and midfemur or- impunctate between eye and antennal ange, yellow apicoventrally, hindfemur socket; vertex punctures 1-3 PD apart; orange, tibiae inner surface orange, outer clypeus greatest width 2.5X length; inter- MOD surface yellow; foretarsi red; mid and antennal distance 2.3 wide; ocello- hindtarsi dark brown; tergum I red be- cular distance 4 MOD; flagellomere I as coming black basally; sternum I black, long as broad; flagellomere II 1.4X as long segments II—III reddish; segments IV-V as broad; flagellomeres III—IV 1.5X as long dark brown to black, terga II—VI with as broad; flagellomere XI 2.3X as long as comma-shaped lateral yellow spot, sterna broad. Mesosoma: pronotal, scutal and scu- with small apicolateral yellow spot; wing tellar punctures 1-2 PD apart; metanotum membrane untinted, costa and stigma or- impunctate; propodeal punctures striati- ange, rest—of veins brown. form and contiguous; mesopleural punc- Female. Unkn—own. tures small and nearly contiguous below Type material. Holotype 6: New South hindwing, becoming sparsely punctatean- Wales: 180 km w Cobar, 4 Nov. 1992, L. teriorly, posteriorly and ventrally, punc- S. and R. B. Kimsey (SYDNEY). Paratypes, tures 2-4 PD apart. Metasoma: terga and 36 6, same data as holotype; 16, same sterna finely shagreened, punctures ob- data as holotype, except 35 km s Cobar scure, 4-6 PD apart; epipygium with im- (DAVIS, SYD—NEY). punctate medial band, and irregular large Etymology. The species name, a noun punctures laterally, 0.5-1.0 PD apart. Gen- in apposition, refers to the closest town, Hal capsule (Fig. 13): paramere dorsal mar- Cobar, to the collection sites of the type gin strongly convex, apex narrowly series. — rounded; volsella ventral lobe rounded, Discussion. H. cobarensis and pygmaeus dorsal lobe subrectangular, with acute are the largest bodied species of Hathyn- apical angle; penis valve small and digi-