Sialis kunmingensis, Liu, Xingyue & Yang, Ding, 2006

Liu, Xingyue & Yang, Ding, 2006, Revision of the genus Sialis from Oriental China (Megaloptera: Sialidae), Zootaxa 1108, pp. 23-35 : 30-31

Sialis kunmingensis sp. nov. ( Fig. 3 & 11–13 )

Diagnosis. Body entirely black; male ninth sternite broadly subtrapezoidal, medially with V­shaped posterior incision; genital plate slender and elongated, in caudal view symmetrically divided with apices narrowed and directed ventrally.

Male. Forewing length 9–11 mm, hindwing length 8–9 mm.

Head black; antenna dark, compound eyes brown.

Thorax black. Legs blackish brown. Wings pale blackish brown with forewings somewhat darker on proximal half; veins blackish brown.

Abdomen black. Ninth sternite broad, longer than ninth tergite; in ventral view subtrapezoidal medially with V­shaped posterior incision. Terminal plate short, in lateral view subtrapezoidal. Genital plate strongly sclerotized; slender and elongate in caudal view, symmetrically divided with apices narrowed and directed ventrally. Lateral plates small; in caudal view subquadrate.

Female. Unknown.

Type materials. Holotype ɗ, CHINA: Yunnan, Kunming, Lanlongxi, 1942. IV.9 ( CAU). Paratypes: 2 ɗɗ, same data as holotype ( CAU).

Distribution. China (Yunnan).

Etymology. The specific epithet “ kunmingensis ” refers to the type locality of the new species.

Remarks. The new species seems to be closely related to S. dorochovae Vshivkova in having a broad male ninth sternite which is directed posteriorly, but can be easily separated from S. dorochovae by the male ninth sternite with the posterior incision. In S. dorochovae , there is no posterior incision on the male ninth sternite.

Figures

FIGURES 1 – 3. Habitus photos of the Sialis species from Oriental China. 1. S. elegans sp. nov. (Paratype). 2. S. jianfengensis Yang, Yang & Hu (Holotype). 3. S. kunmingensis sp. nov. (Holotype).

FIGURES 11 – 13. Genitalia of Sialis kunmingensis sp. nov. 11. Male genitalia, lateral view. 12. Male genitalia, caudal view. 13. Male ninth sternite, ventral view. Scale lines: 0.5 mm.