THE CANADIAN ENTOMOLOGIST 123 



area. Tubercles well shown, brownish black; on joint one the 

 cephalic plate forms a complete covering dorsally, being wider 

 than the head, of similar texture, and edged at the side with black; 

 on joint two an elongate plate occurs anterior to la and lb, the 

 fusion of Xa and Xb apparently, and is about twice the length 

 of a spiracle; la, lb and Ila show as mere dots; lib. III and IV 

 are much larger, being greater than a spiracle; VII of similar size; 

 on joint three tubercles similar, except the elongate plate is absent; 

 on the abdominal joints IV slightly exceeds the spiracle, and on 

 ten is low down; on joint eleven III and 1 1 la are well separated, 

 and I and II assume their usual large proportions; anal plates 

 well developed; spiracles black. 



Stage V. — Similar; on joint ten there is indication of tubercle 

 IVa, but it is not stable for this nor succeeding stages. 



Stage VI. — Body colour much lighter; otherwise no change. 



Stage VII. — Head has lost oblique lateral marking, body colour 

 fades to whitish translucence at maturity; the fused tubercle Xa 

 and Xb is less prominent; otherwise similar. Larva measures 

 21, 27, 35, 40 mm. for the stages respectively. 



Maturity is reached August 8th to 15th, and the gallery is 

 left for pupation. The pupa is shorter and chunkier than usual, 

 of chestnut brown colour and shows no unusual developments; 

 the cremaster is two sharp, curved hooks; length, 15 to 16 mm. 



The emergence dates for thirty specimens include x^ugust 

 26th to September 19th. 



Moeseri larvae in early stages are almost identical with impe- 

 cuniosa, in the last two stages its larger size and middle girth, 

 together with a slight difference of tubercle delineation, readily 

 separate them. 



Papaipema stenocelis Dyar. 



This species, represented by a unique type from Baltimore, 

 Md., was described in 1907. A second specimen was taken at 

 light at Lakehurst, N.J., by Mr. O. Buchholz, in September, 1910. 

 A relationship is apparent to P. inqiiaesita G & R., and more closely 

 still to speciosissima G & R. 



