Indonemoura trilongispina, Wang & Du & Sivec & Li, 2006

Wang, Zhi-Jie, Du, Yu-Zhou, Sivec, Ignac & Li, Zi-Zhong, 2006, Records And Descriptions Of Some Nemouride Species (Order: Plecoptera) From Leigong Mountain, Guizhou Province, China, Illiesia 2 (7), pp. 50-56 : 52-54

Indonemoura trilongispina sp.n. Du & Wang

( Figs. 8‐14 )

Material examined. Holotype ♂, China: Guizhou Province, Leigong Mountain , Xiaodan River , 685 m, 15‐17 September 2005, Wang Zhi‐ Jie. Paratypes 3 ♂, Maolan , Guizhou province, 22 October, 1996, Leg. Li Zi‐ Zhong.

Adult habitus. Head and antennae black, head wider than pronotum; pronotum small, dark brown and nearly rectangular. Wings hyaline, brown, veins dark brown. Legs brown.

Male. Forewing length 6.1 mm; hindwing length 5.2 mm. Tergum 9 unmodified. Hypoproct exceptionally long, slightly constricted medially with narrow, pointed tip reaching end of abdomen; vesicle slender ( Fig. 9 ). Paraprocts trilobed; inner lobe small, triangular and poorly sclerotized; median lobe membranous subapically ( Figs. 9, 11 ). Sclerotized portion with a wide rectangular base unsclerotized in the middle, and a long sclerotized bar extending parallel to inner lobe and bearing a subapical spine and slightly inwardly directed acute apex; outer lobe mostly sclerotized, elongate, lying parallel to distal part of median lobe, and recurved dorsally alongside cerci. Epiproct long and narrow, apex extended over tergum 9 and covered with a layer of membrane; dorsal sclerite sclerotized and consisting of two ridges raised in lateral view ( Figs. 8, 10, 12‐14 ); narrow, thin lateral arms divided into sclerotized bars which extend to base of epiproct; bars armed with a row of tiny black ventral spines along the keel and three longer spines distally on each bar. Ventral sclerite bearing a pair of knob like subapical structures.

Female. Unknown.

Distribution. Guizhou Province (Leigong Mountain), China.

Remarks. Although Baumann (1975) did not list any Chinese species in genus Indonemoura , we believe several nemourid species of Wu might belong to this genus. Unfortunately, none of these species are represented by type material (Zhu et al. 2002).

Etymology. The name refers to the three pairs of long spines on the ventral sclerite of the epiproct.

Figures

Figs. 8‐14. Indonemoura trilongispina sp. n. 8. Male terminalia, dorsal; 9. Male terminalia, ventral; 10. Male terminalia, lateral; 11. Male paraproct; 12. Male epiproct, dorsal; 13. Male epiproct, ventral; 14. Male epiproct, lateral.