28 Journal New York Entomological Society. [VoI. viii. 



Priophorus irregularis, sp. no\ . 



Male. Length 4.5 mm.; antenn?e long and slender, third joint 

 shorter than fourth, finely pilose, joints 3 to 5 a little expanded at the 

 apices. Face on each side of the ocelli channeled; a flat ridge pass- 

 ing down between antennie ; claws with a tooth at middle. Shining 

 black, ])alpi, knees and tibia; whitish except the tip of the middle and 

 hinder tibix^ ; first joint of tarsi whitish at base, the rest black. 

 Wings hyaline at tip, the basal three-fourths smoky black. Outer 

 cross nervure of lower under wing cell received at middle of upper 

 cell. One male. "\\"eirs, New Hani^jshire. 



Possibly this is P. (vqiialis Nort. (just as P. soliiaris Dyar may be 

 P. sinipliiiconiis Nort.) but my specimen does not coincide well with 

 the description. 



Lar\\x% last two stages observed. 



PeiiiiHii)iafc stiv^e. — Head wider than high, mouth projecting, shin- 

 ing black with a few hairs ; width i mm. Body of uniform width, rather 

 wider than high, slightly smaller at both extremities ; a large, con- 

 spicuous, black anal plate. The two rows of low, obscure but rather 

 large watery tubercles bear evident stiff, recurved simple white hairs 

 long on the posterior row, short on the anterior one. P^ody not dis- 

 tinctly annulated. i)ale honey yellow, shading into orange on joints 

 2-3 and 12-13. -^ J'O"' of large, rounded, segmental, subdorsal 

 l)lack spots and a similar smaller subventral row. Abdominal feet on 

 joints 6 to II and 13, the feet slightly spreading, not conspicuous 

 from above, pale or blackish tinted. 



Last s/ai^r. — Head black ; width 1.2 mm. Body rather flat, with 

 manv white hairs from irregular warts in two transverse rows. An- 

 terior row of hairs moderate, posterior larger and from larger tubercles. 

 The segments are 3 -annulate but the anterior annulet bears very few 

 or no hairs. Body whitish, joints 2-3 and 11-12 orange yellow. A 

 row of large black subdorsal spots on joints 2 to 12 over the front row 

 of hairs ; anal ])late black, large. ^\'arts colorless, transparent. 

 Rarely there are traces of small black dots subventrally. Tracheal 

 line white ; feet colorless : hairs all white, recurved. Later the sub- 

 dorsal dots become very large, the subventral ones distinct or absent, 

 white fat granules appear dorsally except at the vessel. The spots 

 may extend from joints 3 to 13. 



Found on smooth willow at Woods Holl, Mass., and Weirs, N. H.; 

 in the latter place there were hundreds of larvae on one bush which 



