Habropogon lehri Sakhvon, 2017

Lelej, Arkady S., 2017, Review of the genus Habropogon Loew, 1847 (Diptera: Asilidae) from Russia, with description of new species from Siberia, Zootaxa 4311 (3), pp. 417-425 : 421-424

Habropogon lehri Sakhvon , sp. nov.

Figs 12–23

Habropogon verticalis mesasiaticus: Lehr 1999: 638 , ♂ (Zabaikaskiy Terr.).

Diagnosis. ( Figs 14, 15 ). Body length 8.0–9.0 mm. Upper margin of mystax rounded in frontal view, reaching antennal sockets, distance between mystax and antennal sockets longer than scape and pedicel combined. Postocular setae not abundant. Antenna dark brown, sometimes pedicel reddish. Thorax black. Anepisternum anterodorsally without hairs, postpronotal lobe with short hairs. Dorsocentral setae long, distinct, reaching transverse suture. Scutellum with short white setae. Hypopygium black.

Description. Male. Head black. Face below antennal sockets narrow, 0.21–0.23 × as wide as head. Face with silvery tomentum. Antenna dark brown, sometimes pedicel reddish, scape and pedicel with some white bristles. Hairs and setae of head white. Upper margin of mystax rounded in frontal view, reaching antennal sockets, distance between mystax and antennal sockets longer than scape and pedicel combined ( Fig. 12 ). Postocular setae few in number. Palpus black with long white hairs, but shorter than mystax.

Thorax black, postpronotal lobe in some paratypes dark brown. Scutum with greyish tomentum and two darker lateral spots of tomentum and darker paramedian and median stripes, with few short white hairs. Postpronotal lobe with short hairs as on scutum. Anepisternum anterodorsally without hairs, one paratype with 1–3 short hairs ( Fig. 13 ). Dorsocentral setae long, distinct, reaching or even crossing transverse suture, supra-alar setae long, reaching transverse suture ( Figs 14, 15 ). Scutellum on margin with 15 or less short scutellar white setae.

Wings clear, iridescence, halteres yellow.

Legs. Coxa black with grayish tomentum and white setae. Trochanter reddish, fore- and mid-femur black, hind femur dark brown, tibia brownish, paler than hind femur, tarsus black, femur and tibia with reddish spot with indistinct boundary. Leg with white hairs and setae.

Abdomen. Tergites black with greyish tomentum and short white hairs, some tergites posteriorly and laterally reddish, sternites paler than tergites. Tergites along median line with dark stripe without hairs.

Hypopygium large, well visible, black with white hairs, slightly turned ( Figs 14, 15 ). Gonostyle distinctly curved at a right angle at the apex, with few hairs ( Figs 16–20 ). Aedeagal apodeme shorter than endoaedeagal process ( Fig. 21 ).

Body length 8.0–9.0 (holotype 8.5) mm.

Female. ( Fig. 22 ). Similar to male except hairs and setae more dense on postsutural scutum and scutellum, terminalia dark brown.

Specimens examined. Holotype, ♂: Russia, Altai Republic, 5 km south-east Chagan-UZun, Tudtyyaryk River , h= 1780 m, [50o4'22''N 88o25'12''E], 12.VII.2016, V. Sakhvon ( BSU) . Paratypes: Russia, 1♂ with the same data as holotype ( IBSS) ; same place, 10–12.VII.2016, V. Sakhvon, 2♂, 1ƍ (BSU); same place, 10–16.VI.2016, V. Gritchik, 1♂ (BSU). Zabaykalsky Krai , N[orthwards] Solov’evsk, Durbachi, [49o54'15''N 115o41'9''E], 20– 21.VII.1977, P. Lehr, A. Lelej, 2♂ ( IBSS) .

Distribution. Russia: Western Siberia (Altai Republic), Eastern Siberia (Zabaykalsky Krai).

Etymology. We are pleased to name this species after the world authority in Asilidae Prof. Pavel Andreyevich Lehr (1923–2005), the founder of the huge asilid collection (c. 38000 specimens) which currently is housed in the Federal Scientific Center of the East Asia Terrestrial Biodiversity, Vladivostok, Russia.

Remarks. The male of new species is similar to that of Habropogon mesasiaticus Lehr, 1960 , but differs by having a larger, black hypopygium (smaller, reddish in H. mesasiaticus ), by long dorsocentral setae reaching transverse suture (weak setae not reaching transverse suture in H. mesasiaticus ), by lacking hairs on anepisternum (anepisternum with hairs in H. mesasiaticus ), by black postpronotal lobe with short hairs (reddish lobe with long hairs in H. mesasiaticus ).

Figures

FIGURES 12 – 15. Habropogon lehri sp. nov., ♂, holotype. 12. Head, frontal view. 13. Anepisternum, lateral view. 14, 15. Habitus, lateral (14) and dorsal (15) views.

FIGURES 16 – 21. Line drawings of male genitalia of Habropogon lehri sp. nov., holotype. 16, 17. Hypopygium, lateral (16) and dorsal (17) view. 18 – 20. The same gonocoxite in different views. 21. Aedeagus, lateral view.

FIGURES 22 – 23. 22. Habropogon lehri sp. nov., ♀, paratype, lateral view. 23. Distribution of Habropogon species (based on the current material and Lehr 1960, Astakhov 2015).