84 EDWARD NORTON. 



Larvx attenuated behind, with six pectoral, twelve abdominal and 

 two anal feet. Pupa enclosed in a cocoon in the earth. 



The larvae of G. spptentrionaUs has been observed in England feed- 

 ing in great numbers on the hazel and willow. (Curtis I, 17.) 



Remainder as in Nematus. 



1. C. latitarsus. 



Cncatis sejifentri.onalis, Harris Cat. 



CroEsus latitarsus, Norton, Proc. Ent. See. Phil. I, 1862, 199, 9 . 

 Color black, base of tibiae white. Length 0.32. Br. wings 0.72 inch. 



9 . AntenntB as long as body, black ; body shining blue-black, a 

 crescent-shaped elevation between antennae ; clypeus notched; labrum, 

 mandibles and palpi piceous ; mesothorax with confluent longitudinal 

 punctures; pleura dull, with dense punctures ; legs black, the anterior 

 pair piceous toward tip; posterior trochanters and basal half of all the 

 tibiai white ; posterior tibiaa enlarged and very much flattened toward 

 the tip; first joint of tarsi still wider, compressed, longer than remain- 

 ing four joints together, its edges elevated to a rim on both sides; 

 wings hyaline, a little smoky below stigma; a dot in middle of both 

 second and third submarginal cells. 



Massachusetts, (Harris' Coll.) Pennsylvania, (Coll. Am. Ent. Soc.) 

 (Smithsonian Institute.) 



(Three 9 .) Quite rare. Wild cherry, Aug. 16. 



Bred by Mr. Walsh from larvce feeding on birch. 



Lanceolate cell closed in middle. 

 30. LEPTOPUS, Hartig. 

 Leptopus, Ilartig, Die Blattw. 1S60, isl. Nematus, Sec. I. 



Wings with one marginal and four submarginal cells, the second re- 

 ceiving two recurrent nervures ; lanceolate cell closed in middle. 

 Remainder as in Ntmatas. 

 Europe. 



[ TO BE CONTINUED.] 



