April, '06] 



ENTOMOLOGICAL NEWS. 



119 



to decide, but when we compare it with the hind wing, where 

 the radial sector is distinct, we see the magnitude of the 

 change. The cross-vein connecting r l with r* in the hind wing, 

 Fig. 8, suggests 

 that the change has 

 been brought about 

 by shifting of the 

 trachea from longi- 

 tudinal to cross 

 veins many tra- 

 cheae are found mis- 

 placed in the pupa, 

 and this change might easily occur the change would then be 

 coalescence and not fission, as can be easily understood by 

 studying the accompanying figures of the fore and hind wings. 

 The sub-costa and r 1 run nearly parallel to the end of the wing. 

 In Polystoechotes punctatus, Fig. 9, R-, by pectinate brach- 



Fig. 8. Micro-inns posticus. Hind wing. 



Fig. 9. Polystoechotes punctatus. Fore wing. 



ing, gives rise to fourteen veinlets, each of which subdivides 

 twice. Ctt } has seven such branches. The sub-costa and ;-' 

 fuse at the pterostigma and give rise to fifteen such veinlets. 



MANTISPID;. 



In Mantispa interrupta, Figs. 10 and u, the sub-costa runs 



through the middle 

 of the pterostigma 

 for the last third of 

 its course, and dis- 

 appears near i t s 



end. The base of 

 Fig. \o.-i\Iantispa interrupta. Fore wing. 



