Lygistorrhina (Lygistorrhina)

Huerta, Heron & Ibañez-Bernal, Sergio, 2008, The family Lygistorrhinidae (Diptera: Sciaroidea) in Mexico and the description of two new species, Zootaxa 1808, pp. 44-52 : 51

Lygistorrhina (Lygistorrhina) sp.

Material studied: 1 female. MEXICO, Hidalgo, Tlanchinol, cloud forest, Km 4 Carretera Tlanchinol-Apantlazol, 29 Sept–2 Oct., 1997, Malaise Trap, Cols. Blackaller J., Salceda B., and Perez A. (20º 59’ 849’’ N; 98º 37’ 538’’ W; elevation: 1465 m).

Female. Total length ca. 4.0. Head: antennae dark brown, with 14 unicolorous flagellomeres. Thorax dark brown; coxae dark brown; fore and midleg femora and tibiae pale yellow; hind femur pale yellow at basal 0.33, the rest reddish brown; hind tibia dark brown; tibial spurs formula 1:2:2. Wing without apical dark spot; length ca. 2.5; Sc ending free. Halter white. Abdomen dark brown, without pale yellow bands.

Comments. This female differs by their several characters from the two previously described species. The male was not captured so it is impossible to adequately describe this species. This is the first report of a member of the subgenus Lygistorrhina in North America.