128 



1)V flic ol)l()iig space on tlie inner third of llie wing, succeeded by a triangular 

 enclosure on tlie inner edge of the wing. 



The largest specimen comes from Philadelpliia. It ditfers from all the 

 other specimens which I have carefully examined in the triangular space 

 being merged in with the oblong space, the converging lines being separated 

 by a considerable space. 



It is possible that there are two broods in Texas. 



I anl inclined to regard this Philadelphian specimen, and others with the 

 inti-a- and extradiscal lines farther apart than usual, as Guen^e's Cidaria 

 gmciliiimfa (see my [)late 8, fig. 54). His description agrees well with these 

 specimens. There aie, however, others connecting the two forms, so that 

 gracilincata may denote a race or strain, but scarcely a variety. 



Larva. — I have found the caterpillars varying from green to brown ; 

 and, while diversilineata feeds on the grape-vine and Ampelopsis, the graci- 

 lincata is said by Gruenee to feed on a Vaccinium, on which diversilineata may 

 yet occur. Mr. W. Saunders, of Loudon, Canada, has found the larva feeding 

 on the woodbine. According to his notes, "the body above is dark-brown, 

 with a slightly-reddish tint, and patches of a darker shade along the dorsal 

 region, being the color of the twigs of its food-plant. It remains in the pupa 

 state about a week.'' I have found both brown and green specimens feeding 

 on the leaves of the grape-vine in midsummer. The larva is long and very 

 slender, smooth, cylindrical, and in its general shape agrees with the diag- 

 nosis of the genus given by M. Guen(^e. I regret that I did not draw up a 

 detailed description of the larva. 



Pujia. — The following description is taken from a well-preserved cast 

 skin in the Harris Collection : Bod}' rather stout ; wing-covers reaching to 

 the seventh abdominal ring, counting from the end ; the tip is acutely conical; 

 anal spine large, acute, much flattened from above downward ; bearing two 

 large, curved spines, with two much smaller, curved, basal spines ; abdomen 

 with scattered, acute spinules arising from minute, black tubercles; pale 

 ash, minutely speckled with darker fine points, with a dark dorsal line 

 extending from the head to the end of the anal spine. Length, 0.55 inch. 



Egg. — Cylindrical, nHujli rounded and fuller at the po.sterior than at the 

 anterior end, which is truncated and contracted, with a swollen rin\ : white^ 

 witli tiu- surface; irrannlated. 



