412 



straighl from the costa l<> the greal angle on the median line, through two 

 deep scallops ; the angle is jagged and sharp, and below the line tin-ins a 

 greal curve, sending a point outward on the internal vein. Beyond litis line 

 the wing is while, with scattered dark specks, and with a ferruginous patch 

 just below the sixth submedian, and a larger one extending from the second 

 median venule to the inner edge of the wing near the angle. Hind wings 

 white, more or less densely mottled with brown on the inner two-thirds ; the 

 extradiscal line is zigzag" with a l;i nr< - angle in the middle of the wing. 

 Beyond this the markings repeat those of the tore wings; beneath, the same 

 style ol markings is repeated. 



Length of body, ?, 0.72; of fore wing, V, 1.00; expanse of wings, 

 2.21 I inches. 



Cambridge, Mass. (Harris's Coll.). 



While cupidaria is possibly (lie male of this species, it seems to differ 

 decidedly in the large angle of 1 he ext radiscal line on the hind wiui. r s especially. 



Larva. — " La chenille est pins courte (pie celles de nos Amphidasys 

 europeennes, d'un brun marhre de jaune-roussatre, avec une raie laterale plus 

 claire. Le ventre esl rose entire les fausses pattes, el le l er anneau est d'un 

 jaune d'ocre. Elle a une caroncule sur le 5 e et une sous le ventre dn (>'', 

 outre celle du 11", qui est commune a tout le genre. Au repos, elle tient 

 ses premiers anneaux tres-ramasses, en sorte cpi'elle parait avoir une boss< 

 tres-eleve'e. Elle vit en avril et mai sur les Quercus (Gruende). 



The above description may apply to this, but the following one is drawn 

 up from an unpublished drawing of Abbot's in the library of the Boston 

 Society of Natural History. Body stouter and shorter than in the larva of 

 E. cogndtaria. Head angular; prothoracic segments swollen ; a tubercle on 

 the back oi'the third, the lower part of the side of the front, and on the back 

 of the penultimate segment. The body is colored in the drawing slate-gray, 

 with irregular dark spots and longitudinal slashes. The food-plant drawn on 

 the plate is Crataegus australis T. and Gr. 



Amphidasis cupidaria Grote. Plate 11, fig. 5. 



Amphidasys cupidaria Grote, Proc. Ent. Soc. Phila., iii.f>::i. pl.G,fig.8, ', 1864. 



'I'he antenna' are much more heavily pectinated than in . I. cognataiia, 

 the pectinations reaching nearly to the end. It is known by wanting the 

 black collar, t he three large while patches on the costa of the fore \\ ings, and 



