Aegosoma Audinet-Serville, 1832

Ren, Chenglong, Chen, Li & Li, Zhu, 2016, Comparative morphology study of the male genitalia of the genus Aegosoma from China (Coleoptera: Cerambycidae), with a new record species, Zoological Systematics 41 (4), pp. 415-426 : 416

Aegosoma Audinet-Serville, 1832

Aegosoma Audinet-Serville, 1832: 162 . Type species: Cerambyx scabricornis Scopoli, 1763 , designated by Thomson, 1864: 288. Megopis (Aegosoma) : Lameere, 1909: 137.

Diagnosis. Body median size or large, surface covered with pubescence; eyes deeply concaved at the inner edge; antennae surface glabrous, with 11 segments. Segment I–V with surface rough, segment I dull red and short, segments III, IV with inner longitudinal grooves. Pronotum rounded, apex wider than base, covered with bushy yellow setae, without tooth and stabs on both sides. Elytra flattened, wider than pronotum, lateral sides nearly paralleled, slightly narrowed to rounded apex, the surface with 2–3 obvious longitudinal ridge line. Female terminalia with 8th sternite shallowly concaved. Female abdominal ovipositor exposed.

Distribution. China, Russia (Far East), North Korea, South Korea, Japan, Vietnam, Laos, Thailand, India, Myanmar, Nepal, Bhutan, Sikkim, Malaysia, Indonesia, Iran, Turkey, Azerbaijan, Syria, Armenia, Russia (Europe), Europe.

Key to species of Aegosoma based on male genitalia.

1. Tegmen curved deeply ( Figs 9, 13, 17 ) ................................................................................................................................................ 2

Tegmen curved slightly ( Figs 7, 11, 15 ) ...............................................................................................................................................4 2. Length of tegmen about 5 times as long as parameres ......................................................................................................................... 3

Length of tegmen about 4 times as long as parameres ................................................................................................. A. sinica White 3. Sternite VIII sparsely covered with points ........................................................................................................ A. hainanensis Gahan

Sternite VIII densely covered with points ........................................................................................................... A. guerryi (Lameere) 4. Penis curved deeply ( Figs 25 ) ..............................................................................................................................................................5

Penis curved slightly ( Figs 29, 33 ).......................................................................................................................................................6 5. Spiculum gastrale lessthan triple length of spiculum relictum .............................................................................. A. ornaticolle White

Length of spiculum gastrale about 3 times or more than spiculum relictum .................................................. A. scabricorne (Scopoli) 6. Length of tegmen about 2 times as long as parameres ........................................................................................ A. katsurai (Komiya)

Length of tegmen about 4 times as long as parameres ...................................................................................................... A. george Do

Figures

Figures 6–17. Tegmen of Aegosoma spp. 6–7. A. ornaticolle White, 1853. 8–9. A. hainanensis Gahan, 1900. 10–11. A. george Do, 2015. 12–13. A. sinica White, 1853. 14–15. A. katsurai (Komiya, 2000). 16–17. A. guerryi (Lameere, 1915). 6, 8, 10, 12, 14, 16. Ventral view. 7, 9, 11, 13, 15, 17. Lateral view. Scale bars=1mm.

Figures 24–35. Penis of Aegosoma spp. 24–25. A. ornaticolle White, 1853. 26–27. A. katsurai (Komiya, 2000). 28–29. A. george Do, 2015. 30–31. A. sinica White, 1853. 32–33. A. hainanensis Gahan,1900. 34–35. A. guerryi (Lameere, 1915). 24, 26, 28, 30, 32, 34. Ventral view. 25, 27, 29, 31, 33, 35. Lateral view. Scale bars=1mm.