412 



stniiu-ht IVoiii (lie cosia to tlic great angle on (lie median line, through two 

 deep scallops ; the angle is jagged and sharp, and below the line forms a 

 yreat cnrve, sending a point outward on the inti'rnal vein. Beyond this line 

 tlie winy i? white, with scattered dark specks, and with a lerriiginous patch 

 just below (he sixth sul)median, and a larger oiu' 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 large angle in the middle of the wing. 

 Beyoiul this the markings repeat those of the fure wings ; beneath, the same 

 stvle ol' markings is repeated. 



Length of body. ?, 0.72; of tbre wing, 9, 1.00; expanse of wings, 

 2.20 inches. 



Cambridge, ]\Iass. (Ilarri.s's Coll ). 



While ciipiduria is possibly the male of (his species, it seems (o dilfer 

 decidedlv in (he large angle of (lie extradiscal line on the hind wings especially. 



l,,n-p,i. — "La chenille es( plus courte (jue cellcs dc nos Ampkidasijs 

 euro]K'ennes, d'un l)run marbre de jaune-ronssutre, avcc une raie laterale phis 

 claire. Le ventre est rose entre les fausses pattes, at le l'""' anneau est d'un 

 jaune d'ocre. EUe a ime caroncule sur le 5" et une sous le ventre du C", 

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

 ses premiers anneaux ties-raniasses, en sorte qu'elle parait avoir une bosse 

 trfes-(ileve'e. Elle vit en avril et mai sur les Quercus ((iuenee). 



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

 up from an unpublished drawing of Ai)bot's in the lil)rary of the IJoston 

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

 E. cog7iataria. Head angular; ])n)thoracic segments swollen ; a tubercle on 

 the back of the third, the lower part of the side of the front, and on thc^ l)ack 

 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 Cra/wgii.s aiistiri/is T. and G. 



AMi'HiDyVsis CIM'IIURIA Cirote. Plate 11, tig. 5. 



Amphidamis oiipidaria (j'oU;, I'nii'.. l^iil. Soc. I'liila., iii, .Tiiil, pi. (i, lii;. S, J , lS(iJ. 



The antenna' are miu-li mort! heavily pectinated than in A. cognataria, 

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

 black collar, the three large white patches on the costa of the fore wings, and 



