Figs. 2-3. Onocosmoecus unicolor (Banks). 2, Male genitalia (specimen from 
Ontario, Durham Co.): a, lateral; b, dorsal; c, ventral; d, phallus, lateral and ventral. 
3, Female genitalia (specimen from Ontario, Durham Co.): a, ventral; b, detail of 
vulval lobe; c, lateral, (anal op., anal opening; gen. op., genital opening; IXt & IXs, 
tergum and sternum of segment IX; inf. app., inferior appendage; ext. br. X, int. br. 
X, external and internal branches of segment X; subanal pi., subanal plate). 
