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A new species of Anagyrus Howard (Hymenoptera: Encyrtidae) from Puerto Rico (USA), parasitoid of Harrisia cactus mealybug, Hypogeococcus sp. (Hemiptera: Pseudococcidae), on Pilosocereus royenii (Cactaceae) PDF

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Preview A new species of Anagyrus Howard (Hymenoptera: Encyrtidae) from Puerto Rico (USA), parasitoid of Harrisia cactus mealybug, Hypogeococcus sp. (Hemiptera: Pseudococcidae), on Pilosocereus royenii (Cactaceae)

Dugesiana, Año 23, No. 1, Enero-Junio 2016, es una publicación Semestral, editada por la Universidad de Guadalajara, a través del Centro de Estudios en Zoología, por el Centro Uni- versitario de Ciencias Biológicas y Agropecuarias. Camino Ramón Padilla Sánchez # 2100, Nextipac, Zapopan, Jalisco, Tel. 37771150 ext. 33218, http://www.revistascientificas.udg. mx/index.php/DUG/index, [email protected]. Editor responsable: José Luis Navarrete Heredia. Reserva de Derechos al Uso Exclusivo 04-2009-062310115100-203, ISSN: 2007- 9133, otorgados por el Instituto Nacional del Derecho de Autor. Responsable de la última actualización de este número: José Luis Navarrete Heredia, Editor. Fecha de la última modi- ficación 30 de junio 2016, con un tiraje de un ejemplar. Las opiniones expresadas por los autores no necesariamente reflejan la postura del edi- tor de la publicación. Queda estrictamente prohibida la reproducción total o parcial de los contenidos e imágenes de la publicación sin previa autorización de la Universidad de Gua- dalajara. Dugesiana 23(1): 27-31 ISSN 1405-4094 (edición impresa) Fecha de publicación: 30 de junio 2016 ISSN 2007-9133 (edición online) ©Universidad de Guadalajara http://zoobank.org/FD252CDA-2297-4EA2-A092-6557BE284789 A new species of Anagyrus Howard (Hymenoptera: Encyrtidae) from Puerto Rico (USA), parasitoid of the Harrisia cactus mealybug, Hypogeococcus sp. (Hemiptera: Pseudococcidae), on Pilosocereus royenii (Cactaceae) Una nueva especie de Anagyrus Howard (Hymenoptera: Encyrtidae) de Puerto Rico (EE.UU.), parasitoide del piojo harinoso del cactus Harrisia, Hypogeococcus sp. (Hemiptera: Pseudococcidae), sobre Pilosocereus royenii (Cactaceae) Serguei Vladimirovich Triapitsyn Entomology Research Museum, Department of Entomology, University of California, Riverside, California, 92521, USA, [email protected] ABSTRACT A new species of the genus Anagyrus Howard (Hymenoptera: Encyrtidae), A. ciomperliki sp. n., is described from Puerto Rico (USA) as a primary parasitoid of the Harrisia cactus mealybug, Hypogeococcus sp. (Hemiptera: Pseudococcidae), on the native cactus Pilosocereus royenii (Cactaceae). Key words: Hymenoptera, Encyrtidae, Anagyrus, Puerto Rico, parasitoid, mealybug, Hypogeococcus. RESUMEN Se describe una nueva especie del género Anagyrus Howard (Hymenoptera: Encyrtidae), A. ciomperliki sp. n. de Puerto Rico (EE. UU.) como un parasitoide primario del piojo harinoso del cactus Harrisia, Hypogeococcus sp. (Hemiptera: Pseudococcidae), sobre el cactus nativo Pilosocereus royenii (Cactaceae). Palabras clave: Hymenoptera, Encyrtidae, Anagyrus, Puerto Rico, parasitoide, piojo harinoso, Hypogeococcus. A new species of the genus Anagyrus Howard RESULTS (Hymenoptera: Encyrtidae), A. ciomperliki sp. n., is TAXONOMY described from Puerto Rico (USA) as a primary parasitoid Anagyrus ciomperliki Triapitsyn sp. n. of Hypogeococcus sp. (Hemiptera: Pseudococcidae) on (Figs 1-9) Pilosocereus royenii (Cactaceae). It is presumably a native http://zoobank.org/0D0A54E0-7E61-4958-8AFC- natural enemy of Hypogeococcus sp., commonly called the D48B01177E96 Harrisia cactus mealybug which is often misidentified as Type material. Holotype female [UCRC] on slide (Fig. H. pungens Granara de Willink. The latter, according to 4) labeled: 1. “PUERTO RICO (USA): Cabo Rojo, U. S. Fish the unpublished data by Guillermo A. Logarzo (personal and Wildlife Service Cabo Rojo National Wildlife Refuge, communication), attacks only Amaranthaceae and is not 24.iv.2012, A. Francis, from Hypogeococcus pungens conspecific with the gall-like inducing Hypogeococcus Granara de Willink on cactus, Pilosocereus royenii”; 2. sp. of yet unknown origin that devastates or threatens the “Mounted by V. V. Berezovskiy 2013 in Canada balsam”; 3. native cacti, including P. royenii, in Puerto Rico and also “Anagyrus ♀ Det. by S. V. Triapitsyn 2013”; 4. [magenta] in some other Caribbean islands (Triapitsyn, Aguirre et al. “Anagyrus ciomperliki Triapitsyn HOLOTYPE ♀”; 5. 2014; Carrera-Martínez et al. 2015). [barcode database label] “UCRC UCRC_ENT 00407592”. All the specimens had been initially preserved in 80% The holotype is in excellent condition, complete, dissected ethanol; later they were dried using a critical point dryer, under 4 coverslips. Paratypes (2 females, 2 males), same point-mounted, and then one female and one male were data as the holotype [1 male on point, MEBT; 1 female, 1 slide-mounted in Canada balsam. Terms for morphological male on points and 1 male on slide, UCRC]. The correct features in the description are those of Gibson (1997). host is the Harrisia cactus mealybug, Hypogeococcus sp. Measurements are given in micrometers (µm) as length Description. FEMALE (holotype). Color. Body (as in or length: width (for the wings). An abbreviation used Fig. 1) including head mostly orange except face between is: F = antennal funicle segment. Type specimens are toruli, gena (partially), propodeum, and gaster brown; eyes deposited in the collections of Museo de Entomología y gray, ocelli pink; radicle dark brown, rest of scape mostly Biodiversidad Tropical, Universidad de Puerto Rico, Jardín dark brown except for a small basal white spot and a Botánico Norte, San Juan, Puerto Rico (USA) (MEBT) and transverse, subapical white band, basal half or so of pedicel Entomology Research Museum, University of California, dark brown and apical half or so white, F1 and F2 brown, Riverside, California, USA (UCRC). rest of flagellum white except base of F3 brownish; legs mostly dirty whitish. Dugesiana Sculpture. Head and mesosoma, and also gaster as wide; hind wing about 3.7× as long as wide. Gaster partially, with fine but conspicuous coriaceous-rugose shorter than mesosoma; genitalia (Fig. 9; length 369 µm) sculpture; scape mostly reticulate. occupying about 0.3 length of gaster, markedly exserted Pubescence. Head and mesosoma with dark setae, beyond gastral apex. these mostly short except for a pair of longer setae on mesoscutum near its posterior margin and 3 pairs of long Diagnosis. The new species is somewhat similar to setae on scutellum. some (those with only F1 and F2 of the female antenna Head wider than high. Toruli just below level of lower dark) A. quilmes Triapitsyn, Logarzo and Aguirre from eye margin. Ocelli in an obtuse triangle; minimum distance Argentina, reared there from the true H. pungens on between posterior ocelli (POL) 2.2× greater than that Amaranthaceae (Triapitsyn, Logarzo et al. 2014), and then between posterior ocellus and eye margin (OOL); distance further illustrated by Triapitsyn, Aguirre et al. (2014). The between posterior ocellus and occipital margin about the female of A. ciomperliki differs from that of A. quilmes in same as OOL. Maxillary palpus 4-segmented, labial palpus having F1 shorter than pedicel (F1 conspicuously longer 3-segmented. than pedicel in the latter). Antenna (Fig. 3) with radicle 2.8× as long as wide, rest In Noyes (2000), A. ciomperliki keys to couplet 42 of scape strongly broadened, 2.0× as long as wide; pedicel together with A. aega Noyes from Costa Rica, so it is 2.5× as long as wide, longer than F1; funicle segments modified below to separate females of these two species. all longer than wide, F1 the longest, F2-F6 subequal in 42. Both F1 and F2 brown .……….....…………. 42a length (F5 the shortest); clava 3-segmented, 2.6× as long as –Only F1 brown ........................................................ 43 wide and shorter than combined length of F4-F6; flagellar 42a. Basal two-thirds or so of pedicel dark segments all with several (at least 2) longitudinal sensilla brown, its apex dirty white; fore wing with linea calva except F1 with 1 short longitudinal sensillum on one interrupted by 4 lines of setae ................. A. aega Noyes antenna (but lacking it on the other). –Basal half or so of pedicel dark brown, its entire Mesosoma (Fig. 5). Mesoscutum about 1.7× as wide apical half or so white (Fig. 3); fore wing with linea calva as long; scutellum a little wider than long, slightly shorter interrupted by 2 lines of setae (Fig. 6) . A. ciomperliki sp. n. than mesoscutum, scutellar apex narrowly rounded, In addition, A. ciomperliki differs from other similar placoid sensilla close to each other and about in the middle Neotropical species (described from Costa Rica), A. eudora of scutellum. Noyes and Menezes and A. villalobosi Noyes and Menezes Wings (Fig. 6) not abbreviated. Fore wing about 2.4× (Noyes 2000), in having the fore wing with linea calva as long as wide, with disc hyaline; linea calva interrupted interrupted by 2 lines of setae (at least by 4 lines in the by 2 rows of setae; costal cell about 17× as long as wide; latter two species). marginal vein longer than wide, postmarginal vein a little Etymology. This species is named after Matthew A. shorter than stigmal vein. Hind wing 4.1× as long as wide, Ciomperlik, Director of the USDA APHIS PPQ CPHST with disc hyaline. Mission Laboratory in Edinburg, Texas, USA, who sent me Legs. Mesotibial spur slightly longer than this series of specimens for identification. mesobasitarsus. Gaster (Fig. 5) longer than mesosoma. Ovipositor ACKNOWLEDGMENT occupying a little more than half length of gaster, exserted I thank Vladimir V. Berezovskiy (UCRC) for mounting a little beyond its apex (by about one-tenth of total length specimens. of ovipositor), and 1.4× as long as metatibia. Measurements (µm) of the holotype. Mesosoma 566; LITERATURE CITED metasoma 836; ovipositor 523. Antenna: radicle 61; rest of Carrera-Martínez, R., L. Aponte-Díaz, J. Ruiz-Arocho and scape 239; pedicel 91; F1 75; F2 67; F3 65; F4 67; F5 61; D.A. Jenkins. 2015. Symptomatology of infestation F6 67; clava 179. Fore wing 1009: 424; longest marginal by Hypogeococcus pungens: contrasts between host seta 30. Hind wing 683: 167; longest marginal seta 36. species. Haseltonia, (21): 14-18. Variation (dry-mounted, critical point-dried paratype, Gibson, G.A.P. 1997. Chapter 2. Morphology and Fig. 1). Body length 1255 µm. terminology. (pp. 16-44). In: Gibson, G.A.P., J.T. MALE (paratypes). Body length 860 µm (dry-mounted, Huber and J.B. Woolley (Eds.). Annotated keys to the critical point-dried specimens). Body (Fig. 2) including genera of Nearctic Chalcidoidea (Hymenoptera). NRC head mostly brown (face, axillae, and gaster) to dark Research Press, Ottawa, Ontario, Canada. brown except mesopleuron light brown with some orange; Noyes, J.S. 2000. Encyrtidae of Costa Rica (Hymenoptera: antenna with radicle dark brown, rest of scape mostly white Chalcidoidea), 1. The subfamily Tetracneminae, except for a large subapical brown spot dorsally, pedicel parasitoids of mealybugs (Homoptera: Pseudococcidae). light brown ventrally and brown dorsally, F1 brown and Memoirs of the American Entomological Institute, 62: rest of flagellum grayish or dirty whitish; legs mostly plate 1 + 1-355. dirty white except protibia and protarsus a little darker. Triapitsyn, S.V., M.B. Aguirre, G.A. Logarzo and A. Antenna (Fig. 7) with scape minus short radicle 2.6× as Dal Molin. 2014. Taxonomic notes on primary and long as wide; funicle segments all longer than wide (F1 secondary parasitoids (Hymenoptera: Encyrtidae and the longest); clava entire, 5.4× as long as wide; flagellar Signiphoridae) of Hypogeococcus spp. (Hemiptera: segments all with longitudinal sensilla and numerous Pseudococcidae) in Argentina. Acta Zoológica Lilloana, long setae, F6 with 4 and base of clava with 2 or 3 scale- 58 (2): 171-186. like structures ventrally. Fore wing (Fig. 8) 2.2× as long 28 A new Anagyrus from Puerto Rico (Hymenoptera: Encyrtidae) Triapitsyn, S.V., G.A. Logarzo, M.B. Aguirre and of Hypogeococcus spp. (Hemiptera: Pseudococcidae), D.A. Aquino. 2014. Two new species of Anagyrus with taxonomic notes on some congeneric taxa. (Hymenoptera: Encyrtidae) from Argentina, parasitoids Zootaxa, 3861 (3): 201-230. Recibido: 22 de marzo 2016 Aceptado: 17 de mayo 2016 Figures 1, 2. Anagyrus ciomperliki (paratypes): 1. Female habitus. 2. Male habitus. 29 Dugesiana Figures 3-6. Anagyrus ciomperliki (female holotype): 3. Antenna. 4. Slide. 5. Mesosoma and metasoma. 6. Fore and hind wings. 30 A new Anagyrus from Puerto Rico (Hymenoptera: Encyrtidae) Figures 7-9. Anagyrus ciomperliki (male paratype): 7. Antenna. 8. Fore wing. 9. Genitalia. 31

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