Dracontogena angolensis 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 : 354-355

Dracontogena angolensis Aarvik & Karisch , new species

( Figs. 9 , 27 , 38 )

Type material. Holotype, 3, ANGOLA: Fazenda Congulu, Amboim district, 17–22.iv.1934, K. Jordan, genitalia slide BMNH 28995 ( BMNH).

Description. Adult. Male ( Fig. 9 ). Head: Brownish black. Antenna dark brown. Labial palpus 1.5 times diameter of eye, brownish black. Thorax: Rubbed, posteriorly with white medial dot and black sides; tegulae white, dark grey in front. Legs dark grey, mid-tibia with basal and medial white ring, tarsi with paler rings, hind tibia with brownish grey scale tuft. Wingspan 24.0 mm. Forewing upperside rubbed and greasy, but seems to resemble D. bjornstadi n. sp. closely. Hindwing dark brownish grey; basal scales modified, narrow, black; termen strongly notched before anal corner; no fringes present along termen from apex to notch.

Male genitalia ( Fig. 38 ). Valva broad, dorsal edge more strongly curved proximally than in D. bjornstadi n. sp., with moderate scale patch; phallus long, 783 μm., broader than in D. bjornstadi n. sp., gradually tapering, with ca. 89 small cornuti counted from their attachment sockets. Tergite 8 ( Fig. 27 ) short, hardly incised laterally.

Female unknown.

Diagnosis. D. angolensis n. sp. resembles the two other species with a strongly notched hindwing, D. continentalis and D. bjornstadi n. sp. In the genitalia it differs from D. continentalis by the broader valva and the much greater number of cornuti, as well as the differently shaped 8th tergite. From D. bjornstadi it differs by the broader phallus and the smaller number of cornuti. The black modified scales on the hindwing upperside are broader than those in D. bjornstadi n. sp.

Distribution. Known only from Angola.

Etymology. The species is named after the country where the type specimen was collected, Angola.

Figures

FIGURES 2 – 9. Adults of Dracontogena. 2 – 4. D. continentalis Karisch. males. 5. D. continentalis Karisch. female. 6. D. agassizi n. sp. male. 7. D. rubondoensis n. sp. male. 8. D. bjornstadi n. sp. male. 9. D. angolensis n. sp. male. Fig 3. Shows holotype of D. hoppei Karisch. 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 34 – 40. Male genitalia in Dracontogena. 34. D. continentalis Karisch (slide L. Aarvik 2735). 35. D. agassizi n. sp. (slide T. Karisch 2235). 36. D. agassizi n. sp. phallus (slide T. Karisch 2235). 37. D. rubondoensis n. sp. (slide L. Aarvik 2734). 38. D. angolensis n. sp. (slide BMNH 28995). 39. D. bjornstadi n. sp. (slide L. Aarvik 2733). 40. D. bjornstadi n. sp. phallus (slide L. Aarvik 2733). Scale figs. 34 – 35, 37 – 39: 1 mm., scale figs. 36, 40: 0.5 mm.