1953] 
Nutting — Biology of Euphasiopteryx 
77 
Although Green figured the puparium of Oestrophasia 
{—Euphasiopteryx) ochracea in 1922, spiracular details 
of the three known puparia of the genus are included in 
text fig. 1 for ready comparison. The brevicornis puparium 
is dark mahogany with the spiracular tubercles a shining 
black, while those of ochracea and depleta are a dull brick 
red with subshining black tubercles. In all three species 
the tubercles are basally enlarged and well separated, 
depleta being the most extreme in these features. The 
tubercles of ochracea arise slightly above the longitudinal 
puparial axis, but in depleta they arise obliquely from the 
Text figure 1. Comparison of spiracular details of the three known 
puparia of Euphasiopteryx. Fig. 1, E. ochracea (Bigot) ; a, ventral 
aspect of right spiracular tubercle; b, lateral aspect of same, An, anus; 
c, detail of spiracular plate. Fig. 2, E. depleta (Wied.), a, b, c, same as 
fig. 1. Fig. 3, E. brevicornis (Tns.) , a, b, c, same as fig. 1. (x44) . 
