n8 



ENTOMOLOGICAL NEWS. 



[April, '06 



ing of the median has been almost or quite completely sup- 

 pressed. 



In Ululodes hyalina, Fig. 5, the sub-costa and radius run 

 parallel to the pterostigma, where they unite. The radial 

 sector is branched dichotomously, though it is functionally 



Fig. 5. Ululodes (Ulula) hyalina. Fore wing. 



pectinate, R* being united to Ri + 3 by a strong cross vein. 

 The media is unbranched. R-, r~ j , Cit^ and the anal furnish 

 numerous veinlets by pectinate branching. 



In Myrmeleon rustiats, Fig. 6, the number of accessory 



Fig. 6. Myrmeleon rustic us. Fore wing. 



veins is very much increased, Cu l having thirteen branches, 

 each of which subdivides once. 



HEMEROBIM;. 



In the Hemerobida the radial sector has become pectinate 

 by splitting of R* + 5 as shown by Comstock and Needham for 

 Hemerobins. 



In the fore wing of Micro tuns posticus, Fig. 7, the radial 

 sector is suppressed 

 and the radius has 

 become pectinate. 

 Whether this has been 

 caused by fission \ or 

 coalescence, I have 

 not enough material Fig. 7. Micromus frist'icus. Fore wing. 



