OF NORTH AMERICA. 53 



l.-EUPHANESSA MENDICA. (Pi. 2. fig. 9.) 



Nudaria mendica, Walker, Cat. Lep. B. M. II., p. 576. (1854.) 

 Eudule biseriata, H. S. Lep. Exot. , p. 19, fig. 441. (1855.) 

 Nudaria ? mendica, Clem., Syn. Lep. N. Am. app. , p. 300. (1864.) 

 Euphanessa mendica, Pac, Proc. Ent.Soc. Phil., vol.3, p. 102. (1864.) 

 ^ . ? . — Entire insect pale, ochreous yellow, with the wings subdia- 

 phanous, the costa and outer margins being somewhat darker. Eyes 

 black. Anterior wings with two oblique, irregular, transverse, pale 

 grayish bands, made up of irregular shaped spots. The basal band 

 consists of a large subquadrate spot on the discal area, a much reduced 

 rounded spot immediately below the median vein, and another of the 

 same size above the internal vein and nearer the base of the wing. The 

 outer band lies across the nervules, is very irregular, and consists of 

 unequal spots in the interspaces; its inner side is nearly straight, except 

 a projection thrown out to the discal vein ; the outer side is irregularly 

 dentate. There is a small spot on the outer margin, about midway 

 between the apex and internal angle. Posterior wings immaculate. 

 Expanse of wings, i.io inches. Length of body, 0.45 inch. 

 Habitat. — New England States and Canada, (Auth. Sanborn, Pack- 

 ard and Saunders.) 



This insect appears to be but little liable to variation. Packard states 

 that it is common in low swampy grounds or dry pine woods in July. 

 After Plate 2 was engraved, I found the following notes in relation 

 to this species, which throw considerable doubt on the classification of 

 this insect with the Bombycidae, and seem to indicate that it ought to 

 be referred to the Geometridae. Mr. Saunders (Can. Ent. vol. 3, p. 

 227,) writes: " A female of this species deposited eggs on the side 

 of a box, in which it was confined, on the 2d and 3d of July. They 

 were of a bright red color, and the young larvae were hatched from 

 them on the 8th of the same month. They were extremely active, 

 about one-tenth of an inch long, with cylindrical bodies, and true 

 geometers in their larval characteristics and mode of progression. 

 The following description was taken at this stage in their history. 



" Head large, bilobed, dark brown. Body above dull brownish green, 

 with a slight pinkish tinge, and with many short black and brown hairs. 

 Under surface similar to the upper ; feet and prolegs — of which latter 

 there were only tivo pairs — greenish and semi-transparent." 



All efforts to find suitable food for these larvae failed, so that their 



