Bittacus Latreille, 1805

Bittacus Latreille, 1805: 20; Esben-Petersen, 1921: 117; Carpenter, 1931: 257; Cheng, 1957: 90; Penny & Byers, 1979: 366. Type species: Panorpa italica Müller, 1766 .

Diagnosis. The genus Bittacus is similar to Terrobittacus, but can be differentiated from the latter by the following characters: 1) male epandrial lobe longer than half length of gonocoxite (cf. epandrial lobe distinctly shorter than half length of gonocoxite; 3) tergum X saddle-like (cf. tergum X vestigial or absent); 4) female subgenital plate separated mesally by a membranous area (cf. subgenital plate almost fused mesally).

Bittacus differs from Bicaubittacus by the male gonocoxites lacking paired prolongations distally.