298 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 49. 



''anterior hamules." These "anterior hamules" then function not as 

 claspers but as a sheath for the penis. The distal johit of the penis is 

 bifurcate, the two rami being slender and twice as long as the undi- 

 vided base of the joint. (Figs. 94 and 95.) 



J 



Figs. 79-80.— IscHxtrRA cervula, female. 79. Dorsal view 



I. Lateral view. 



Male (figs. 77, 78, 94-98, 109).— Labruin blue, with a horizontal 

 black line above. Frons blue on the vertical surface, black on the 

 horizontal surface. Vertex with blue band across front, small blue 

 postocular spots, otherwise black, wliich is continuous with black of 

 the upper part of the eves. Antennae black. Upper fourth of eyes 

 black, which is abruptly set off by a straight line from the pale 



