258 PROCEEDINGS OP THE ACADEMY OP 



Medio superior and central nervules branch from a common stalk. 



T. dorsistrigella . Labial palpi yellowish, dark brown externally, third 

 article yellowish. Head and front very pale yellow, tinged with dark brown 

 on the sides above the eyes, and at base of antennae. Antennae dull brown. 

 Thorax dark brown, with the disk very pale yellow. Fore wings blackish 

 brown, somewhat tinged with obscure reddish, with a dorsal streak along the 

 inner margin, whitish or pale yellowish white, and usually somewhat dilated 

 above the interior angle ; with a costo-discal patch of the same hue and the 

 costa punctated with pale yellowish atoms, which become small spots toward 

 the apex of the wing, and on the posterior margin. Hind wings pale brownish, 

 with a reddish hue; cilia gray. Exp. al. 4.75 to 6.00 lines. 



T. c r o c i c ap it e 1 la. Labial palpi yellowish, dark brown externally. 

 Head and front saffron yellow. Thorax dark fuscous, with the disk saffron 

 yellow. Fore wings dark fuscous, with dispersed saffron yellow scales, espe- 

 cially along the casta, with a saffron yellow dorsal streak and a paler, nearly 

 round discal spot. Hind wings pale brownish gray. Exp. al. 4.50 to 6.50 

 lines. 



T. carnariella . Palpi dark brown. Head and front rather dark ochre- 

 ous, tinged with reddish. Fore wings pale yellowish brown, dusted with fus^ 

 cous, especially at the costal portion of the base ; with a conspicuous dark brown 

 spot on the end of the dise, with two smaller spots of the same hue between this 

 and the base of the wing, one about the middle of the disc, and the other be- 

 neath it in the submedian fold ; fringes unicolorons and rather paler than the 

 general hue. Hind wings pale bluish gray ; fringes somewhat darker. Exp. 

 al. 5.50 to 7.50 lines. 



This species, perhaps, may have been heretofore described under another 

 name ; but if it has, I have been unable to recognize it. 1 have two specimens 

 only in my collection. The larvae were found in one of my boxes of Lepidoptera, 

 and had constructed cases of detached portions of the insects and the scales, 

 united by silk. The imago appeared, one on March 13th, and the other some 

 days subsequently. 



The eggs were whitish, smooth and nearly cylindrical, but tnpering slightly 

 toward the upper end. Length about one fourth of a line, diameter one half 

 the length. The mature larva was of a dirty white color, with a black head and 

 black cervical shield, 



T. lanariella . Head ochreous. Labial palpi dark brownish. Antennas 

 dull fuscous. Thorax and abdomen pale yellow. Fore wings pale yellowish 

 brown or pale yellow, with a silky lustre, and immaculate ; sometimes slightly 

 dusted with fuscous on the costa at the base, and with a brownish spot on the 

 end of the disc. Hind wings pale shining yellow, cilia the same. Exp. al. 

 5.50 to 6.50 lines. 



I am not sure this is not a variety of the previous species, and has, perhaps, 

 been heretofore described, as it is a very common inhabitant of houses. The 

 larvae feed on woollen substances, carpets, clothes, etc., of which each con- 

 structs a case. I have reared a great many in confinement, and have also 

 found that they feed on the bodies of their dead progenitors, when the oppor- 

 tunity offers. 



I find the egg described in my note book as spheroidal and of large size for 

 so small an insect ; I doubt, however, the correctness of the term descriptive of 

 the figure. The young larvae appear after about two weeks, and dp not im- 

 mediately make a case. The mature larva is white, with a dark brown head 

 and a cervical shield of the same hue. They reach maturity about the middle 

 of March, and climb the sides of the walls to the ceiling of the room in which 

 they feed, and suspend'or attach their cases. The imagos of the first brood 

 appear about the beginning of May ; there is another in August and Sep- 

 tember. 



[Sept. 



