Dracontogena solii Aarvik & Karisch

Aarvik, Leif, Karisch, Timm & Marthinsen, Gunnhild, 2012, Review of the Afrotropical genus Dracontogena Diakonoff, 1970 (Lepidoptera, Tortricidae) with descriptions of eight new species, Zootaxa 3478, pp. 345-372 : 355-356

Dracontogena solii Aarvik & Karisch , new species

( Figs. 1 , 11–13 , 29 , 43, 44 , 64–67 )

Type material. Holotype, 3, TANZANIA: Kilimanjaro Region: South Pare, Kilomeni , 7.xi.2010, G.E.E. Søli, genitalia slide NHMO 2010 ( NHMO). Paratypes: 13,1Ƥ, KENYA: Mount Kenya, Chorogia 0 0o14’S 37o35’E, 1600 m., 13–14.iv.2001, J. & W. De Prins, genitalia slide 3 L. Aarvik 2007.015; genitalia slide Ƥ L. Aarvik 2007.016 ( RMCA); 13,1Ƥ, Eastern Province, Marsabit Mountain , 2°9.26' N 37°58.20' E, 1530 m, 29.viii.2004, R. Copeland, genitalia slide 3 T. Karisch 2248, Ƥ USNM 84924 ( USNM). TANZANIA: 1Ƥ, Arusha region, Ngorongoro , 3°14.37' S 35°30.41' E, 7500 ft., 08.v.2001, D.J.L. Agassiz, genitalia slide T. Karisch 2245 ( DA). 13, ZIMBABWE: Bvumba 1.i. 1994 D.J.L. Agassiz, genitalia slide BMNH 32542 ( BMNH).

Description. Adult. Male ( Figs. 11, 12 ). Head: Black. Antenna black, scape white. Labial palpus 2 times diameter of eye, black, extreme tip white. Thorax: Greyish brown, with narrow light brown band in front, white posterior scale tuft, tegulae light brown. Legs dark grey, tarsi with paler rings, tibiae with basal, medial and distal light dots, hind tibia with beige scale tuft. Wingspan 17.0–21.0 mm. Forewing black, with some brown suffusion in tornal area; costal strigulae faint; connection between dorsal maculae narrow, but complete, outer macula triangular with dark streak; cilia brownish grey, one larger and one small white patch below apex. Hindwing light grey; basal scales narrower and darker than rest; conspicuous patch of broad, black scales below cell; veins darkened; termen curved inwards before anal corner; fringes white.

Female ( Fig. 13 ). Head: As in male. Thorax: Wingspan 24.0 mm. Connection between dorsal maculae interrupted before outer macula. Hindwing darker grey than in male, paler at base.

Male genitalia ( Figs. 43, 44 ). Valva with internal round scale patch, incised before cucullus, cucullus strongly spined by incision and also with spines along ventral and terminal edge; phallus ( Fig. 44 ) short, 537–663 μm., bottle-shaped, with 12–18 small cornuti. Tergite 8 ( Fig. 29 ) long.

Female genitalia ( Figs. 64–67 ). Sternite 7 with deep U-shaped excavation; sterigma extended posteriorly as a tongue-shaped asymmetrical projection; posterior part of ductus bursae sclerotised; signa short. Extension of the sterigma varying in size and degree of asymmetry ( Figs. 65–67 ).

Diagnosis. Males of D. solii n. sp. differ externally from the closely related D. bernardi by the presence of a patch of black sex scales on the hindwing upperside. The female of D. bernardi is unknown.

Distribution. Kenya, Tanzania, and Zimbabwe.

Biology. The specimens from the Marsabit Mountain were reared from Caseria battiscombei R.E. Fries (Flacourtiaceae) .

Etymology. The species is named after the collector of the holotype, Geir E.E. Søli.

Figures

FIGURE 1. Pregenital structures in male abdomen in Dracontogena solii n. sp. (slide NHMO 2010). Scale 3 mm.

FIGURES 10 – 17. Adults of Dracontogena. 10. D. bernardi Karisch. male. 11 – 12. D. solii n. sp. males. 13. D. solii n. sp. female. 14 – 16. D. kingstoni n. sp. males. 17. D. kingstoni n. sp. female. Scale 10 mm.

FIGURES 23 – 33. Tergite 8 in males of Dracontogena. 23. D. continentalis Karisch (slide L. Aarvik 2735). 24. D. agassizi n. sp. (slide T. Karisch 2235). 25. D. rubondoensis n. sp. (slide L. Aarvik 2734). 26. D. bjornstadi n. sp. (slide L. Aarvik 2733). 27. D. angolensis n. sp. (slide BMNH 28995). 28. D. bernardi Karisch. (slide L. Aarvik 2808). 29. D. solii n. sp. (slide NHMO 2010). 30. D. kingstoni n sp. (slide L. Aarvik 2010.004). 31. D. gilligani n. sp. (slide BMNH 28993). 32. D. sundi n. sp. (slide L. Aarvik 2809). 33. D. deltozyga (Meyrick) (slide L. Aarvik 2007.010). Scale 1 mm.

FIGURES 41 – 46. Male genitalia in Dracontogena. 41. D. bernardi Karisch. (slide L. Aarvik 2808). 42. D. bernardi Karisch, phallus (slide L. Aarvik 2808). 43. D. solii n. sp. (slide NHMO 2010). 44. D. solii n. sp. phallus (slide NHMO 2010). 45. D. tonitrualis (Meyrick). 46. D. metamorphica (Meyrick). Scale figs. 41, 43: 1 mm., figs. 42, 44: 0.5 mm. Figs. 45 – 46 from Karisch (2005).

FIGURES 64 – 67. Female genitalia of Dracontogena solii n. sp. Figs. 65 – 67 show variation in shape of sterigma and sternite 7. (64, 65. slide L. Aarvik 2007.016, 66. USNM 84924, 67. T. Karisch 2245). Scale fig. 64: 1 mm., figs. 65 – 67: 0.5 mm.