Makcii iSg^.l ToWNSKM). On E IC A I KKV A Va RI A kl A. 37 



THE LARVA AND PUPA OF EUCATERVA 

 VARIARIA CRT. 



By C. H. 'rvi.iR Tow Nsi.M). 



I II an article in Can.Ent. 1892, p. 200, the findins^ of tlie coeoons 

 of this species in Aus^iist in northern New Mexico is recorded. 

 'I'he larvie hatl not then been observed, iiowever, and were unknown. 



On May 27, 1893, I beat numbers of the larvi\3 of this i)hahx.'nid 

 from Chilopsis bushes along arroyos on the mes.x to the cost of 

 Las Cruces. The larviu were of various sizes. Spinning larviv 

 were also found, and newly formed puj^iv in their peculiar thin 

 silken cocoons. This finding of the pupa; in May indicates evidently 

 three br<,)o(.ls of this species in this region, since the pup;e were 

 previously found in August, disclosing the moths in that month. 



The following is a description of the full-grown larva and jnipa; 



Larva. — Length, about 31 to ^-^^-^ mm. ; greatest width, about 

 3j^ to 4 mm. Color pale green, creamy on dorsal regions, yellow 

 on sides with black dots Head and anal segment creamy with 

 black dots. Spinning larv;v are more creamy, antl have a pinkish 

 shade on dorsum. 



An elongate geometrid larva, with two pairs of prolegs, on 

 segments 10 antl 13. Head a little narrower than prothorax, the 

 latter a little narrower than meso- and meta-thorax. Othcj- 

 segments nearly same width, slightly witlening about 10, and 

 narrowing again to anus. Prothorax shorter than other thoracic 

 segments. Segments 5 to 9 elongate, longer than wide, exce|)t 5, 

 and about ecpial in length; 10 hardly as long as wide, 11 anil 12 

 sht)rter than 10; anal segment a little longer than preceding, with 

 a sinuate transverse suture on dorsum. A broad lateral yellow 

 stripe running the whole length of the body on each side next to 

 venter; dorsal of this and parallel to it, is another much narrower 

 yellow stripe, while there is usually apparent a very faint and more 

 or less ipterrupted one between the two. Venter also with a 

 median yellowish longitudinal stripe, and a faint one on each side, 

 l^ody nearly bare, with only some very scant short hairs, head with 

 more distinct hairs. 



Described from several specimens. Colors noted in life. The 

 food-plant is Chilopsis saiii^na . 



J^iipa. — Length 14 to 18 mm. ; greatest width, 4 to 5 mm. 

 Color creamy whitish, anal horns pale brownish. ^\ ing, antennal, 



