JOURNAL OF ENTOMOLOGY AND ZOOLOGY 27 



PUPA, 9 



In this sex the crest is smaller (plate III, B), reduced to two 

 triangular lobes with the notch between these lobes very deep ; 

 the antennal sheaths are not swollen basally so that the pro- 

 notal breathing horns are visible from beneath; antenna" short, 

 extending to a point just beyond the base of the wing. Arrange- 

 ment of the legs about as in S ; in one specimen the two ter- 

 minal tarsal segments of the hind legs project beyond the 

 tips of the other feet ; the base of the fore femur is not before 

 the first bend but this segment of the leg is just at this bend. 

 The ninth sternite of the abdomen (plate III, F) is triangular, 

 quite pointed at the tip, with a deep median split; ninth tergite 

 with a broad notch, the lobes small, triangular, divergent, not 

 strongly chitinized and directed strongly dorsad. There is only 

 a little difference in the shape of the ends of the abdomen in 

 the S and 2 pupa of this species. 



Both sexes of the pupae described from numerous specimens, 

 Fall Creek, Ithaca, New York, May 1, 1913. 



ERIOCERA SPINOSA Osten Sacken 

 1859 Arrhenica spinosa Osten Sacken; Proc. Acad. Nat. Sci. 

 Phil., p. 244. 



LAKVA 



Fully grown, fully extended, 40-45 mm. ; diameter, 4-5 mm. 



Color of larva varies from very pale whitish to rather dark 

 brown ; the skin has conspicuous bronzy reflexions in life. 



The larval head differs from that of E. longkornis Walker, 

 as described before, in the following essentials. (See plate I, A). 



Genal plates not ending in a sharp protuberance on their 

 inner cephalic angle, the inner margin being almost straight. 

 The lateral lobes of the frontal sclerite are very pronounced, 

 longer than the labrum itself. The hairs at the tip of the 

 antennae are shorter, not more than one-third to one-fourth the 

 length of the segment. The mandibles (plate I, F) lack the 

 prominent conical tooth at midlength. The head-capsule is 

 much broader in proportion to its length, measuring 3.5 to 

 3.8 mm. by 1.8 to 2 mm. (across the genal plates). 



