A Revision of Afrotropical Species of the Eupyrgota (Diptera, Pyrgotidae): the Varipennis and Melancholica Subgroups of Species
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Vestnik zoologii, 40(2): 115–130, 2006 Ôàóíà è ñèñòåìàòèêà © V. A. Korneyev, 2006 UDC 595.773.4 A REVISION OF AFROTROPICAL SPECIES OF THE EUPYRGOTA (DIPTERA, PYRGOTIDAE): THE VARIPENNIS AND MELANCHOLICA SUBGROUPS OF SPECIES V. A. Korneyev Royal Museum for Central Africa, Leuvensesteenweg 13, Tervuren, B-3080 Belgium and Schmalhausen Institute of Zoology, NAS of Ukraine, Bogdan Chmielnicky str., 15, Kyiv, 01601 Ukraine E-mail [email protected] Accepted 24 October 2005 Ðåâèçèÿ àôðîòðîïè÷åñêèõ âèäîâ ðîäà Eupyrgota (Diptera, Pyrgotidae): ïîäãðóïïû âèäîâ varipennis è melancholica. Êîðíååâ Â. À. — Íà îñíîâàíèè èçó÷åíèÿ òèïîâûõ ìàòåðèàëîâ, îïèñàííûõ ×. Êý- ðåíîì, Þ. Áðóíåòòè, Ã. Ýíäåðëÿéíîì è Ï. Âàíñõ¸òáðóêîì è èñ÷åðïûâàþùèõ ìàòåðèàëîâ èç ìíîãî÷èñëåííûõ ýíòîìîëîãè÷åñêèõ êîëëåêöèé, ïðåäñòàâëåíû îïèñàíèÿ âèäîâ èç ïîäãðóïï varipennis è melancholica è òàáëèöà äëÿ îïðåäåëåíèÿ âèäîâ ðîäà Eupyrgota Coquillett, âñòðå÷àþ- ùèõñÿ â Àôðîòðîïè÷åñêîé îáëàñòè è íà Àðàâèéñêîì ïîëóîñòðîâå. Îïèñàíû Eupyrgota echinata Korneyev, sp. n. èç Äåìîêðàòè÷åñêîé Ðåñïóáëèêè Êîíãî è Óãàíäû è Eupyrgota crassipes Korne- yev, sp. n. èç Äåìîêðàòè÷åñêîé Ðåñïóáëèêè Êîíãî. Óñòàíîâëåíà ñëåäóþùàÿ ñèíîíèìèÿ. Eupyrg- ota Coquillett, 1898 = Peltodasia Enderlein, 1942, syn. n. Eupyrgota varipennis (Curran, 1928), comb. n. è Eupyrgota vespiformis (Enderlein, 1942), comb. n. ïåðåìåùåíû ñîîòâåòñòâåííî èç Campylocera Macquart è Peltodasia Enderlein. E. rugosigenis Hendel âîññòàíîâëåíà èç ñèíîíèìèè. Âïåðâûå óêà- çàí õîçÿèí Eupyrgota latipennis Walker — âçðîñëàÿ áðîíçîâêà Pachnoda interrupta Olivier (Coleop- tera, Cetoniidae); ýòî òàêæå ïåðâîå óêàçàíèå õîçÿèíà äëÿ âèäîâ ðîäà Eupyrgota è äëÿ àôðîòðîïè- ÷åñêèõ ïèðãîòèä. Êëþ÷åâûå ñëîâà: Diptera, Cyclorrhapha, Tephritoidea, Pyrgotidae, Eupyrgota, Àôðîòðîïè÷å- ñêàÿ îáëàñòü, ôàóíà, òàêñîíîìèÿ, íîâûå òàêñîíû, ñèíîíèìèÿ. A Revision of Afrotropical Species of the Eupyrgota (Diptera, Pyrgotidae): the varipennis and melancho- lica Subgroups of Species. Korneyev V. A. — Based on the study of the type specimens described by C. Curran, E. Brunetti, G. Enderlein and P. Vanschuytbroeck and exhaustive material from many entomological collections, the species of the varipennis and melancholica subgroups of Eupyrgota Coquillett are redescribed and a key to all the species occurring in the Afrotropical Region and Arabian Peninsula is provided. Eupyrgota echinata Korneyev, sp. n. from the Democratic Republic of Congo and Uganda and Eupyrgota crassipes Korneyev, sp. n. from the Democratic Republic of Congo are described. The following synonymy is established. Eupyrgota Coquillett, 1898 = Peltodasia Enderlein, 1942, syn. n. The following species are transferred to Eupyrgota: E. varipennis (Curran, 1928), comb. n., from Campylocera Macquart; and E. vespiformis (Enderlein, 1942), comb. n. from Peltodasia Enderlein. E. rugosigenis Hendel is resurrected from synonymy. The host species of Eupyrgota latipennis Walker is recorded for the first time: the adult beetle Pachnoda interrupta Olivier (Coleoptera, Cetoniidae). This is the first host record for any representative of the genus Eupyrgota and for any Afrotropical pyrgotids. Key words: Diptera, Cyclorrhapha, Tephritoidea, Pyrgotidae, Eupyrgota, Afrotropical Region, fauna, taxonomy, new taxa, synonymy. This paper is the conclusion of revision of Afrotropical Eupyrgota (Korneyev, 2006). It contains also some additional data on the species omitted in the previous paper, including designation of lectotype of Adap- silia rugosigenis Hendel from Uganda, and resurrection of E. rugosigenis from synonymy based on this name- bearing specimen. 116 V. A. Korneyev Material. The list of abbreviations of the depositaries mentioned in this paper is given in the first part of this paper (Korneyev, 2006), except SMWN — the State Museum of Namibia, Windhoek. Copyrights of the pictures of specimens deposited in the BMNH used in this paper belong to the Natural History Museum, London. Eupyrgota Coquillett, 1898 Type species: Eupyrgota luteola Coquillett, 1898, by original designation. Peltodasia Enderlein, 1942, syn. n. Type species: Peltodasia vespiformis Enderlein, 1942, by original designation. Taxonomy. Enderlein (1942) established the separate monotypic genus Pelto- dasia, but this study shows that it is closely related to E. melancholica in all essential features, and that name therefore is synonymized with Eupyrgota. Peltodasia mageraen- sis Vanschuytbroeck, the second species assigned to that genus, is similar to species of Siridapha Enderlein and belongs either to that genus or elsewhere (Korneyev, in prep.). latipennis group of species varipennis subgroup Diagnosis. Parafacial subshining to shining, with more or less distinct wrinkles and sometimes also pits. Supraclypeal sclerite smooth, low, 0.8–0.9 times as high as width of antennal groove. Wing pale brown, with subapical brown spot and hyaline cell bm and base of cell dm (fig. 1, 2; 2, 3). Phallus glans with symmetrical sclerites of praeputium, dentate sclerite ventrobasal to gonopore and right flap not appressed to corpus. Species included. E. varipennis and E. rugosigenis. Eupyrgota varipennis (Curran, 1928), comb. n. (fig. 1) Campylocera varipennis Curran, 1928: 342; Steyskal, 1980: 557. Type material. Holotype {: Democratic Republic of Congo: “Stanleyville, Cgo. / 25°10' E 0°30' N / IV.14.1915”, “Lang et Chapin / Collectors”, “Campylocera / varipennis / Curran / No [red paper label]”, “Campylocera / varipennis / Curran / det. C. H. Curran [white label w/ black frame]” (AMNH). Diagnosis. Superficially resembles E. caffra in robust and dark body, differing by wide gena, waxy shining parafacial (also in E. rugosigenis); with E. rugosigenis also shares very similar shape of phallus glans and differing from that species by longer setae and almost smooth parafacial and elongate oval compound eye. Redescription. Head reddish yellow, with brownish frons and postgenae; frons twice (at vertex) and 2.5 times as wide as eye (at lunula level), conspicuously broadened anteriorly; eye narrow oval (eye ratio 0.5); genal-eye ratio 0.36; first flagellomere-pedi- cel ratio 1.2; medial vertical seta 0.23 times as long as longest (vertical) diameter of eye; lateral vertical seta 0.25 times as long as medial vertical seta; postocellar setae (2 pairs) 0.5 times as long as medial vertical seta; ocellar setae (3 pairs) 0.8 times as long as medial vertical seta; orbital seta 0.3 times as long as medial vertical seta, indistinguish- able from surrounding setulae. Fronto-orbital plates and parafacial wide, shining yellow (at eye margin) to brown, with one shallow wrinkle at level of base of antenna. Antennal groove subshining black. Epiclypeal sclerite 0.2 times as high as facial carina. Mesonotum mostly brown to black, with black setae and brownish setulae; scutel- lum yellow, with one pair of black apical setae as long as scutellum. Wing brown in anterior half, yellowish or pale brown in posterior half and between R1 and stump vein in anterior half, with hyaline bd and d cells, with distinct subapical spot. Femora brown, short setulose, without outstanding dorsal setae; forefemur conspicuously thickened, 3.3 times as long as wide; tibiae brown, brown setulose, thickened. Abdomen dark brown, reddish brown setulose, with short marginal setae on tergite 5; syntergite 1+2 moderately narrowed, 3 times as long as wide at middle and 1.5 times Afrotropical Eupyrgota (Diptera, Pyrgotidae)… 117 Fig. 1. Eupyrgota varipennis, holotype { (AMNH): 1— habitus, left; 2— labels; 3–4 — head (3— right; 4— anterior); 5— parafacial, enlarged; 6— scutellum; 7— abdomen, dorsal; 8— hypopygium, ventral, enlarged; 9–10 — glans (9— lateral, 10 — ventral). Ðèñ. 1. Eupyrgota varipennis, ãîëîòèï { (AMNH): 1— îáùèé âèä, ñëåâà; 2— ýòèêåòêè; 3–4 — ãîëîâà (3— ñïðàâà; 4— ñïåðåäè); 5— ñêóëà, óâåëè÷åíî; 6— ùèòîê; 7— áðþøêî, äîðñàëüíî; 8— ãèïîïèãèé âåíòðàëüíî, óâåëè÷åíî; 9–10 — ãëàíñ (9— ñáîêó, 10 — âåíòðàëüíî). as long as wide at posterior margin, 1.2 times as long as tergites 3 and 4 together and twice as long as tergite 5; synsternite 1+2 almost 7 times as long as wide at posterior margin. Abdomen and male terminalia not dissected; phallus glans as in fig. 1, 9–10, with almost symmetrical preputium, dentate sclerite ventral to gonopore and left flap not appressed to glans; apical lobe slightly sclerotized, almost symmetrical. Wing length: male 10.0 mm. Female unknown. Remarks. This species can be recognized from the combination of wide head, narrow oval eyes, shining, almost smooth parafacial with mostly dark colored body and wing. The glans of the phallus does not differ from that in E. rugosigenis. The two species are obviously closely related, but differ mainly in head shape and eye and genal- eye ratio; in addition, E. varipennis has conspicuously longer setae on the head and tho- rax. It also differs from other species of the latipennis group by having only one pair of scutellar setae, but the range of variability is not clear for this character, as the holo- type is the only known specimen. 118 V. A. Korneyev Eupyrgota rugosigenis (Hendel, 1934) (fig. 2) Adapsilia rugosigenis Hendel, 1934: 342; Steyskal, 1980: 557. Non Eupyrgota rugosigenis sensu Enderlein, 1942: 120, nec sensu Korneyev, 2006: 14. Type material. Lectotype (here designated). }, “Uganda / H. Hargreaves / Kiynga / 8.2.1924”, “Adapsilia / rugosigenis / H. } / Hendel det.,” “Syntype [blue-boarded circle]”, “Syntype / Adapsilia / rugosigenis / Hendel / verified by J. E. Chainey, 2002”, “BMNH (E) { / 252189” (BMNH). Non-type material. Angola: