U HYPOPYGTUM. 



towards which its sides distinctly converge ; and a male of Gl. 

 longipalpts can be distinguished from males of both morsitans and 

 pallidipes by the inner margins of the eyes, forming the sidea 



Fig. 12. 



Distal portion of abdomen of Olostina morsitans, Westw. (ventral aspect), 

 showing (/t) hypopyginni. (X IS.) 



Fig. 13. 



Distal portion of abdomen of Olossina longipaljAs, Wied. (ventral aspect), 

 showing (A) hypopygium. (x 15.) 



of the front, being parallel instead of convergiiig towards the 

 vertex. Similarly, the shape and size of the hypopygiura, as 

 already described in the "Synop.sifl of Species" (see pp. 70-71), 



