NORTH AMERICAN LEPIDOPTERA. 123 



marked ; sixteen legs. Length 14 mm. Found May 21st burrowing 

 in the branches of the Pignut Hickory {Carya porcina), usually 

 selecting the loAver branches; imagos about June 22d. 



"Pupa of the usual form, pale brown, rounded at posterior end, 

 at which place there is a cluster of about four slender hooked spines. 

 Length 7-8 mm. The larva spins a thin web around the footstalks 

 of the leaves which grow near the terminal end of the branch, and 

 then burrows into the terminal bud, and the wood of the present 

 year's growth. It webs its castings together and forms a short tube 

 which projects outward from the mouth of its burrow, and is closed 

 at the outer end. The larva probably a.ssumes the chrysalis form in 

 its burrow, but those I reared deserted their burrows, and spun tough 

 cocoons beneath the litter in the bottom of the breeding-cage." 



Mr. Grote does not give the habitat of the insect, but Mr. Co- 

 quillett was at the time, if I am not mistaken, residing in Illinois. 



6. A. ni|;rosigiielIa ii. sp.— Expands 16 mm. Labial palpi light marooii- 

 rert in front, fuscous behind and at t'p; front reddish; antennte dark fuscous; 

 thorax dark fuscous, washed with deep violet reddish ; abdomen fuscous ochreous, 

 the anterior segments darker dorsally, with reddish brown ; fore wings short 

 broad, costa arched, apical angle distinct; color light gray, much overlaid with 

 blacki,sh, especially at base, in middle field along costa beyond basal line (here 

 forming a large, triangular patch i and on outer field ; lines rather indistinct, the 

 first straight, even light gray, edged outwardly with scale ridge, which is bright 

 reddish with black in middle: outer line very indistinct, nearly lost in dark 

 outer field, very close to outer margin ; discal spots separate, distinct; base of 

 wing s(miewhat reddish. Hind wings fuscous. Beneath fore wings dark fuscous, 

 lighter along inner margin, with a costal black stripe reaching from base to 

 middle; hind wings even yellow fuscous, with costal black stripe from base to 

 just beyond middle. 



Texas. 



In these descriptions I have given all I find on record of the forms 

 which I think ought to be grouped under the pne species, A. angji- 

 selhi. Prof Fernald, by the specimens bred by him and which I 

 have examined, demonstrates the fact that the black dashes below 

 are sexual, and are found in the male only. The specimens which 

 I have seen vary among themselves in the matter of the reddish 

 color on fore wings, and the number and extent of the black dashes 

 below on hind wings. I do not believe, in view of the variability, 

 there is more than one species. Mlnhnella was described from a 9 , 

 and differs in nothing, except smallness of size from anguseJIa, but 

 this difference is not unusual. Whether the forms be species or va- 



