Notes on the genera Sinophasma Günther, 1940 and Pachyscia Redtenbacher, 1908 (Phasmatodea: Diapheromeridae: Necrosciinae), with the description of four new species from China Ho, George Wai-Chun Zootaxa 2012 3495 57 72 Redtenbacher Redtenbacher [374,683,1384,1410] Insecta Diapheromeridae Pachyscia Animalia Phasmida 10 67 Arthropoda genus    1. Anal segment narrowing posteriorly in second half.................................................  P. longicauda  - Anal segment sinuately dilated into a rounded lobe in second half.............................................. 2.   2. Tegmina lacking small yellow spot at the base, alae with distinct pale markings............................  P. plagiata  - Tegmina with yellow spot at base, alae with obscure markings or uniformly coloured.............................. 3.   3. Mesonotum with more than two pairs of spines.......................................................  P. dilatata  - Mesonotum with one to two pairs of spines.......................................................  P. bipunctata