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A new species of the genus Paradoxecia Hampson, 1919 from Borneo PDF

3 Pages·2001·0.34 MB·English
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Preview A new species of the genus Paradoxecia Hampson, 1919 from Borneo

206 Nachr. entomol. Ver. Apollo, N. F. 22 (4): 207–209 (2002) 207 A new species of the genus Paradoxecia Hampson, 1919 from Borneo (Lepidoptera: Sesiidae, Tinthiinae) Axel Kallies Axel Kallies, Zionskirchstraße 48, D-10119 Berlin, Deutschland; E-Mail: [email protected] Abstract: A new species of the genus Paradoxecia Hampson, only 7 species in 5 genera were described so far from 1919 is described from Borneo. Paradoxecia radiata sp.n. the huge region of the south-east Asian islands. For this is the first representative of the genus in the entire Sunda reason, the finding of new Tinthiinae species from this archipelago. The holotype ♀ is deposited in BMNH, London. region is of general interest. This species differs from all congeners fundamentally by the semitransparent forewings which are scaled only along Recently, in the collection of The Natural History the veins, the absence of Cu2 of the forewing, the smooth, Museum (BMNH), London, a single specimen of an strongly upcurved labial palps, and the structure of the geni- remarkable Tinthiinae species was discovered. Externally, talia. the species differs from all Tinthiinae species known so far. Detailed investigation revealed similarities to spe- Eine neue Art der Gattung Paradoxecia Hampson, 1919 cies of the genus Paradoxecia Hampson, 1919 (type spe- von Borneo (Lepidoptera: Sesiidae, Tinthiinae) cies: Aegeria gravis Walker, [1865]). Characters, such as Zusammenfassung: Eine neue Art der Gattung Paradoxecia the pronounced subapical scaling of the antenna and the Hampson, 1919 wird von der Insel Borneo beschrieben. Par- structure of the genitalia, supported the association of adoxecia radiata sp.n. ist der erste bekannte Vertreter der Gattung im gesamten Sundaarchipel. Die Art unterscheidet the species with this genus. Paradoxecia was revised by sich grundlegend von allen anderen Arten der Gattung Par- Gorbunov & Arita (1997) and further characterised by adoxecia durch die semitransparenten, lediglich auf den Kallies & Arita (2001). Up to now 10 species are known, Adern beschuppten Vorderflügel, das Fehlen von Ader Cu2 all of which originating from the south-east Asian main- im Vorderflügel, die glatt beschuppten, stark nach oben gebo- land (Myanmar, Vietnam, China, Taiwan). The species genen Labialpalpen sowie durch die Genitalmorphologie. described below is the first record of the genus from Borneo and from the Sunda Archipelago. Since it differs Introduction fundamentally from all congeners, a description even from the single damaged specimen available appears to The Tinthiinae, one of the two currently established sub- be justified. families of Sesiidae, are found all over the world. While only few species are known from Europe, Africa, and Paradoxecia radiata sp. n. (Figs. 1–4) Australia (Duckworth & Eichlin 1974, Špatenka et al. 1999, Kallies 2000), respectively, the group is diverse Holotype (Figs. 1, 2): ♀, “Sarawak: Mt Dulit. / 4,000 ft. / Moss Forest. / 24.x. 1932.”; “Oxford Univ. Exp. / B.M. Hobby and rich in species in the Western Hemisphere (Eichlin & / A.W. Moore. / B. M. 1933-254.” “Recent Clearing. / Fly- 1986), in the eastern Palaearctic and the Oriental regions ing High.” In coll. BMNH (= The Natural History Museum, (Špatenka et al. 1999, Heppner & Duckworth 1981). London; formerly British Museum (Natural History)). From Asian mainland and Taiwan more than 60 species Derivatio nominis: The name derives from the ray-like in about 15 genera of Tinthiinae are known. However, appearance of the forewing veins (Latin: radius). 1 2 Figs. 1–2: Paradoxecia radiata sp.n., holotype, ♀, forewing length 14 mm. Fig. 1: upperside; Fig. 2: underside. © Entomologischer Verein Apollo e. V., Frankfurt am Main 208 209 Description Alar expanse 30mm, forewing length 14mm, body length 12mm, antenna length 4mm (tip broken off). Head: antenna brown, dorsally scaled, with especially long scales in subapical portion; labial palps short- scaled, strongly upcurved, greyish brown basally, other- wise white to yellow; proboscis small; vertex brownish to grey; frons smooth-scaled, shining grey, with some yel- low scales in ventral part; pericephalic scales grey dor- Fig. 3: Paradoxecia radiata sp.n., wing venation. sally, yellow laterally. Legs: fore coxa deeply yellow, apically brownish grey; hind coxa brownish grey; hind femur brownish grey, posterior margin yellow; hind tibia fuscous, yellow ven- trally and in middle portion; spurs yellow, in subbasal part with a small tuft of spine-like scales dorsally; hind tarsus yellow, basal tarsomer fuscous dorsally. Forewing (prep. AK36 = B.M. 29197): covered with light yellow-brown semitransparent scales; veins marked by dense brown scales; Cu2 absent, stem of media strongly reduced but clearly marked by a row of brown scales. Hindwing: transparent with some brownish semitrans- parent scales in apical portion. Abdomen: segment 1 somewhat constricted; tergite1 yel- low with black scales dorsally; tergites 2–6 blackish grey; tergites 4–5 with a yellow posterior margin; anal tuft yellow-grey medially; sternites pale yellow; sternites 6–7 grey mixed. Genitalia (Fig. 4; gen. prep. AK15 = B.M. 29198): papilla anales broad; ovipositor short; antrum broad, well-scle- rotized; bursa small, pear-shaped, without signum; apo- physis anterior and apophysis posterior of about the same length; 8th tergite with a ventral extension of the anterior margin. Diagnosis The new species cannot be confused with any of its con- geners or any other representative of Old World Tinthi- inae. It can be easily distinguished from all other species by the absence of vein Cu2 of the forewing (Fig. 3) (pre- sent in all other known species of Paradoxecia), by the semitransparent forewings with only the veins densely scaled (completely opaque in all other species of Paradox- ecia), by the shape of the labial palps (usually roughly scaled and shorter in other Paradoxecia), as well as by the structure of the genitalia (compare Gorbunov & Arita 1997, Kallies & Arita 2001). Bionomics and habitat The single known specimen was taken in a „moss forest“ at an altitude of about 1300m in October. Distribution Known only from the type locality in northern Borneo, Sarawak, Malaysia. Fig. 4: Paradoxecia radiata sp.n., female genitalia, scale bar 0.5 mm. © Entomologischer Verein Apollo e. V., Frankfurt am Main 208 Nachr. entomol. Ver. Apollo, N. F. 22 (4): 209–210 (2002) 209 Remark Eichlin, T.D. (1986): Western hemisphere clearwing moths of the subfamily Tinthiinae (Lepidoptera, Sesiidae). — Entomogra- Paradoxecia radiata sp.n. is extraordinary within the phy 4: 315–378. genus Paradoxecia. Beside the very unusual appearance Gorbunov, O., & Arita, Y. (1997): Review of the genus Paradoxecia of the forewings, the species additionally displays struc- Hampson, 1919 (Lepidoptera, Sesiidae, Tinthiinae). — Bon- tural characters not found in typical mainland Paradox- ner Zoologische Beiträge 47: 59–68. ecia, i.e., the absence of vein Cu2 and the smooth-scaled, Heppner, J.B., & Duckworth, W.D. (1981): Classification of the strongly upcurved labial palps. Vein Cu2 is lost in cer- superfamily Sesioidea (Lepidoptera: Ditrysia). — Smithson- tain Tinthiini genera but is usually retained in several ian Contributions to Zoology 314: 1–144. others, including the genus Paradoxecia (Naumann 1971, Kallies, A. (2000): Review of the Tinthiini of the Ethopian Region Gorbunov & Arita 1997). However, the absence of vein (Lepidoptera: Sesiidae). — Tinea 16 (3): 161–169. Cu2 in certain Tinthiinae appears to be inconsistent and ———, & Arita, Y. (2001): The Tinthiinae of North Vietnam (Lepi- not sufficient for the separation of different genera (Kal- doptera, Sesiidae). — Transactions of the Lepidopterists’ Society of Japan 52 (3): 187–235. lies & Arita 2001). Similarly, the degree of forewing scal- ing as well as the type of scaling of the labial palps is vari- Naumann, C. (1971): Untersuchungen zur Systematik und Phylo- genese der holarktischen Sesiiden (Insecta, Lepidoptera). — able within Tinthiini genera such as Ceratocorema Hamp- Bonner Zoologische Monographien 1: 1–190. son, [1893] or Trichocerota Hampson, [1893], respectively Špatenka, K., Gorbunov, O., Laštůvka, Z., Toševski, I., & Arita, (compare Kallies & Arita 2001). Y. (1999): Sesiidae — Clearwing moths. — Volume 1 of Nau- mann, C. [managing editor], de Jong, R., Kitching, I., Mik- References kola, K., Scoble, M., Sugi, S., Tremewan, W.G., & Varga, Z. (eds.), Handbook of Palaearctic Macrolepidoptera. — Wal- Duckworth, W.D., & Eichlin, T.D. (1974): Clearwing moths of lingford (Gem Publ.), 569 pp. Australia and New Zealand (Lepidoptera: Sesiidae). — Smith- sonian Contributions to Zoology 180: 1–45. Received: 4. ix. 2001 © Entomologischer Verein Apollo e. V., Frankfurt am Main, März 2002 ISSN 0723-9912 Hessenfauna 5. Hessischer Erstnachweis des Geistchens Buszkoiana (= Platyptilia) capnodactylus (Zeller, 1841) (Lepidoptera, Pterophoridae) Hermann-Josef Falkenhahn, Zimmerplatzweg 6, D-35085 Ebsdorfergrund, Deutschland; E-Mail: [email protected] Über außeralpine mitteuropäische Populationen des Geistchens feuchtes Mittelgebirgstal mit naturnah mäandrierendem Bachlauf, Buszkoiana (= Platyptilia auct.) capnodactylus (Zeller, 1841) wird typischen Auengehölzen und Feuchtgrünland (Verhochstaudung erst seit wenigen Jahrzehnten berichtet. Manche Autoren, wie zum durch Nutzungsaufgabe); die Umgebung besteht aus bewaldeten Beispiel Sutter (1994) für Ostdeutschland, führen die mitteleu- Steilhängen. ropäischen Funde der Art auf rezente Zuwanderung beziehungs- Die geschilderten Fundumstände und der Habitus des Habitats weise nördliche oder nordwestliche Arealausweitung zurück. Ein scheinen geeignet, in ähnlich strukturierten Biotopen gezielt nach kurzer Abriß der Entdeckungsgeschichte der Art in Mitteleuropa „übersehenen“ oder „neuen“ Populationen des Pestwurzgeistchens findet sich in Finke et al. (1998), denen zufolge aktuelle Mel- zu forschen. Laut Literatur decken sich dessen Lebensraumansprü- dungen für die Niederlande (Kuchlein 1993), Nordrhein-West- che mit denjenigen der Pestwurzeule Hydraecia petasites (Dou- falen (Biesenbaum 1987, 1991, Schultz 1949a, Wittland 1990), bleday, 1847) (Noctuidae), denn Raupen beider Arten können im Niedersachsen (Hinz 1961) und Ostdeutschland (Südharz bezie- Frühjahr gemeinsam an Pestwurz gefunden werden (Hinz 1961). hungsweise Südthüringen: Sutter 1994, Steuer 1991) vorliegen. Die Raupe von B. capnodactyla lebt zu mehreren in den Stengeln Als neue Lokalitäten nennen Finke et al. (1998) drei Fundorte aus von Petasites hybridus (Asteraceae) (in montanen Lagen eventuell Südniedersachsen (Landkreise Northeim, Göttingen, Höxter). auch in P. albus?), sie scheidet ihre Exkremente durch ein Loch Das in Zeichnung und Färbung auffällige, vermutlich recht diskret im Blattstengel nach außen in ein Gespinst ab. Die Überwin- lebende Pestwurzgeistchen P. capnodactylus wurde nun auch erst- terung erfolgt als Raupe im Wurzelstock der Pflanze. Die Nach- mals in Hessen gefunden. Im Naturschutzgebiet „Sondertal und weisführung nur über die Imagines erfordert die Begehung poten- Talgraben bei Bad Wildungen“ (Nordhessen, Landkreis Waldeck- tieller Habitate zur vermutlichen Hauptaktivitätszeit der Ima- Frankenberg) konnte der Autor am 16.v. 2000 einen männlichen gines (Juni–Juli, später Nachmittag, eventuell auch frühe Abend- Falter beobachten und zur Determination fangen (Determination dämmerung; gezüchtete Falter verhielten sich laut Gielis 1996 mit Gielis 1996). Das beobachtete Tier flog gegen 18.30h MESZ und Finke et al. 1998 lichtscheu). Niederländische Entomologen in einer sehr ausgedehnten Pestwurzflur (Petasites hybridus, setzen zum Aufspüren dieser und anderer versteckt lebender Asteraceae) unter dem geschlossenen Petasites-Blätterdach, der Mikrolepidopterenarten eine Imkerpfeife ein, deren Dampf die Fang erforderte Geduld. Habitat der Art ist ein enges und luft- Tiere aus der Vegetation hochtreibt (Biesenbaum, mündl. Mitt.). © Entomologischer Verein Apollo e. V., Frankfurt am Main

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