Fig.14 Apterae on Artemisia, Key C; (a) R IV+V of Pleotrichophorus infrequenus, (b) SIPH of P. longipes, (c) Cauda of P. quadritrichus; (d) Cauda of P. pullus, (e) Three typical hairs on ABD TERG 3 of P. glandulosus, (f) Same for P. gnaphalodes, (g) Front of head of P. heterohirsuta, (h) Same for P. gnaphalodes, (i) Same for P. quadritrichus, (j) Same for P. pseudoglandulosus, (k) Same for P. decampus.