Asilella londti Lehr, 1989

Young, Charles L., 2006, Robber flies of South Korea — II. South Korean species of the Subfamily Asilinae Latreille, 1802 (Diptera, Asilidae), Zootaxa 1132, pp. 1-30 : 5-6

Asilella londti Lehr, 1989

( Figs 2 , 14 , 28, 29 & 59 )

Asilella londti Lehr, 1989 Lehr (1989:233) .

Medium sized yellow flies, 23mm. Tergites 1 and 2 black, remaining tergites bright yellow/gold setose. Fore basitarsus stout and thickened with strong bristles and apical spurs. Aedeagus long and slender, apex trifid, each pong widely open and circular ( Figs. 28, 29 ). Male epandrial lobe rounded and generalized as in Machimus ( Fig. 2 ). Gonostylus slender with truncated apex ( Fig. 14 ). Female cercus free, elongated with rounded apex ( Fig. 59 ).

Head: Mystax long with abundant yellow and black hair; face gold tomentose. Thorax: Chaetotaxy with 1 posthumeral bristle; 4–5 notopleural; 3 supraalar; 6 postalar, and an irregular row of 10 or more dorsocentral bristles. Scutellum black, disc with sparse long yellow hair; scutellar margin with 8 bristles. Pleurae covered in gray pollen, gold tomentum and long yellow hair. Legs: Black and orange/yellow. Femora black with yellow and black hair. Tibia orange/yellow with black and yellow hair; fore tibia black on anterior medial surface. Fore basitarsus stout, thickened with strong black ventral and apical bristles; mid and hind basitarsi more slender and elongated. Wings: Tinged dark apically and on posterior margin; marginal and submarginal cells strongly rippled. Abdomen: Black with long gold hair. Tergites 1–3 with medial sparse black hair medially, longer gold hair laterally. Tergites 4–7 with short hair laterally and long hair medially. Tergite 8 black. Sternite 8 reduced with long black hair medially. Hypandrium excavated medially with marginal apices slightly excised and rounded.

South Korean distribution. Kang­won­Do Province. Chunchon. Nam­Myon. Hudong­Li. 37°44’31”N, 128°35’41”E. Tonghae. East coast. Samcheok. 37°23’33”N, 129°13’34”E.

Material examined. 1ɗ: 17/VIII–15/IX/2003, P. Tripotin coll., Kang­won­Do Province, Chunchŏn, Nam­Myon Hudong­Li, Malaise trap; 2Ψ: 6/VIII/2005, Kang­won Do­Province, Chunchŏn, Nam­Myon Hudong­Li; 1Ψ: 9/X/1994, Kang­won­Do Province, Tonghae East coast, Samcheok.

Field notes. Asilella londti inhabits deeply forested areas in northern South Korea.

Figures

FIGURES 1 – 12. Male external genitalia, lateral views. 1. Aneomochtherus sinensis. 2. Asilella londti. 3. Astochia virgatipes. 4. Eutolmus brevistylus. 5. Machimus aurulentus. 6. Machimus cf. pastshenkoae 7. Mercuriana ussuriensis. 8. Neoitamus angusticornis. 9. Neoitamus castaneipennis. 10. Neoitamus cothurnatus univittatus. 11. Neoitamus zouhari. 12. Philonicus albiceps. Scale bar = 1 mm.

FIGURES 13 – 25. Male gonopods, lateral views. 13. Aneomochtherus sinensis. 14. Asilella londti. 15. Astochia virgatipes. 16. Eutolmus brevistylus. 17. Eutolmus koreanus. 18. Machimus aurulentus. 19. Machimus cf. pastshenkoae. 20. Mercuriana ussuriensis. 21. Neoitamus angusticornis. 22. Neoitamus castaneipennis. 23. Neoitamus cothurnatus univittatus. 24. Neoitamus zouhari. 25. Philonicus albiceps. Scale bar = 1 mm.

FIGURES 26 – 48. Male aedeagi, lateral and dorsal views. 26 – 27. Aneomochtherus sinensis lateral & apex. 28 – 29. Asilella londti lateral & apex. 30 – 31. Astochia virgatipes lateral & apex. 32 – 33. Eutolmus brevistylus lateral & apex. 34 – 35. Machimus aurulentus lateral & apex. 36 – 37. Machimus cf. pastshenkoae lateral & apex. 38 – 39. Mercuriana ussuriensis lateral & apex. 40 – 41. Neoitamus angusticornis lateral & dorsal. 42 – 43. Neoitamus castaneipennis lateral & dorsal. 44. Neoitamus cothurnatus univittatus lateral. 45 – 46. Neoitamus zouhari lateral & dorsal. 47 – 48. Philonicus albiceps lateral & apex.

FIGURES 58 – 66. Female external genitalia, lateral views. 58. Aneomochtherus sinensis. 59. Asilella londti. 60. Astochia virgatipes. 61. Eutolmus brevistylus. 62. Machimus aurulentus. 63. Machimus cf. pastshenkoae. 64. Mercuriana ussuriensis. 65. Neoitamus angusticornis. 66. Philonicus albiceps.