1978] Carpenter & Richardson — Prochoroptera calopteryx 225 
with a branch of the media, but his interpretations were the 
conventional ones at the time. In all four specimens the amount of 
coalescence between MA and RS is distinctly less in the hind wing 
than in the fore wing, but in other respects the venational patterns 
are nearly identical, so far as they are known. The shape of the hind 
wing, as preserved, suggests that it may have been slightly shorter 
than the fore wing, the hind margin having a greater curvature. The 
fore wing was apparently somewhat more elongate than indicated in 
Handlirsch’s figure. 
Figure 3, showing all of the known parts of the insect, is based 
mainly on HTP 12523, with the prothorax and head as preserved in 
HTP 415. The wings have been added to the figure to show their size 
relative to the body, which appears to be surprisingly robust 
compared to the wings (See figure 1). The prothorax, which is 
preserved in HTP 415 and the holotype, is clearly conical in shape 
and unusually small with respect to the rest of the thorax. The 
Figure 3. Prochoroptera calopteryx. Drawing of wings and body, as known; 
based mainly on specimen HTP 12523 (reverse) with prothorax and head added from 
specimen HTP 415. TH2, mesothorax; TH3 metathorax; Al, first abdominal 
segment. 
