Three new species of the genus Bittacus Latreille, 1805 (Mecoptera: Bittacidae), with a key to the species of Bittacidae in South China Author Zhang, Yan-Na Author Du, Wei Author Hua, Bao-Zhen text Zootaxa 2020 2020-01-07 4718 3 381 390 journal article 24419 10.11646/zootaxa.4718.3.6 13c50c08-32cd-415a-818f-632ef4736aa6 1175-5326 3602528 40857F32-81DA-4DFC-A3B9-F2AA1B485542 Key to the species of Bittacidae in South China 1 Epandrial lobe prolongated apically, with complicated processes at inner, ventral and dorsal sides; gonocoxites with two long distal prolongations; Oriental Region...................................................................... 2 - Epandrial lobe simple and varying; gonocoxites without long prolongations; cosmopolitan........................... 3 2 Gonocoxite prolongated caudally; apex of proctiger approximately L-shaped; dorsal margin of epandrial lobe extending ventromesad into a long sabre-shape; gonostylus slender; Guangxi (Tianlin)............... Bicaubittacus yangi Tan & Hua, 2009 - Gonocoxite not prolongated caudally; apex of proctiger rounded, without processes; middle part of epandrial lobe with two processes on ventral margin; gonostylus short, broad basally; Guangdong (Mt. Yim Na)......................................................................................... Bicaubittacus longiprocessus (Huang & Hua, 2005) 3 A transverse band across ocellar triangle extending to compound eyes............................................4 - A transverse band across ocellar triangle not extending to compound eyes........................................ 5 4 Epandrial lobe approximately rectangular, rounded distally in lateral view, with a digital process on inner side; Guangxi (Mao’ershan)....................................................................... Bittacus lii Zhou, 2003 - Epandrial lobe trapezoid for the main body in lateral view, with a slender elongate lobe at ventro-distal apex; Guangxi (Napo)....................................................................... Bittacus monastryrskiyi Bicha, 2007 5 Epandrial lobe with a process at ventro-distal apex........................................................... 6 - Epandrial lobe without process at ventro-distal apex.......................................................... 8 6 Upper branch of proctiger truncated distally, with a pair of lateral processes; Guangdong (Mt. Yim Na)......................................................................................... Bittacus gressitti Chen & Hua, 2011 - Upper branch of proctiger digitate, without process.......................................................... 7 7 Epandrial lobe trapezoid for the main body in lateral view, with a slender elongate lobe at ventro-distal apex and a blunt process at dorso-distal apex; cerci elongate, slightly shorter than gonocoxites; Guangdong (Mt. Yim Na).... Bittacus longilobus sp. n. - Epandrial lobe hat-shaped in lateral view, with a sharp process at ventro-distal apex; cerci as long as half length of gonocoxites; Guangxi (Mao’ershan)................................................................. Bittacus acutus sp. n. 8 One Pcv; wings with a cuneiform marking along R 5 ; Hainan (Bawangling)........... Bittacus hainanicus Tan & Hua, 2008 - Two Pcv; wings without marking along R 5 ................................................................. 9 9 Wings with two middle streaks in a V-shape; epandrial lobe sub-triangular in lateral view; upper branch of proctiger bootshaped; Guangdong (Tsao Kok Wan)............................................... Bittacus shaoguanensis sp. n. - Wings only with four markings, each at ORs, FRs, OM and the distal end of CuP; epandrial lobe rectangular in lateral view; upper branch of proctiger digitate; Hainan (Diaoluoshan)..................... Bittacus diaoluoshanus Chen & Hua, 2011