262 ENTOMOLOGICAL NKNVS [Nov., '19 



ened with scales, third segment a little over one-half the sec- 

 ond, acute. Posterior tibiae rough-haired above and on outer 

 half beneath. 



Fore wings with tufts of raised scales ; very narrow, apex 

 long pointed; ib furcate, lower side of furcation obsolete, 

 2 absent, 3 and 4 long stalked from angle of cell, 5 indistinct 

 except near margin. 7 and 8 out of 6, n from middle of cell. 

 Hind wings 1-3, linear beyond costal shoulder, with apex pro- 

 duced ; cilia 6; most of veins obsolete, lower margin of cell 

 distinct, 2 and 3 given off close to margin, 4 and 5 absent, 6 

 and 7 long stalked. 



Genotype: Amaurogramma e.rtensa n. sp. 



A development of Chrysopeleia, from which it differs by 

 the more elongate and slender palpi, the difference being due 

 to the greater length of the second segment, and the narrower 

 elongate wings, with stalking of 4 and 5 in the fore wing; the 

 extreme narrowing of the hind wings is accompanied by the 

 obsolescence of most of the veins. Chrysopeleia quadricrista- 

 tclla Chambers apparently belongs here, but is distinct from 

 the species described below. 



Amaurogramma extensa n. sp. 



Head, thorax and fore wings clothed with whitish-tipped gray 

 scales, producing a uniformly irrorated aspect. Four patches of black- 

 ish raised scales on the fore wing, each margined inwardly with dull 

 whitish ; the first below the fold at one-fourth, the second on the disk 

 in the middle of the wing, the third a little beyond it on the dorsum, 

 the fourth at end of cell ; a fifth raised patch beyond is distinct in 

 the male. Minute tufts along the termen. Hind wings and cilia gray. 

 Legs gray, with tips of segments whitish; hind tibiae with an oblique 

 white bar across the middle of the outer side. Abdomen gray, upper 

 side of first four or five segments yellowish. Expanse : 7.5-9 mm. 



Type (male), Loma Linda, California, July 22; paratype 

 (female), Loma Linda, California, June 3 (G. R. Pilate), in 

 writer's collection. 



Ithome unimaculella Chambers. 

 Ithomc unimaculella Chambers, Can. Ent. vii, 94, 1875; xi, 9, 1879. 



The statement by Chambers that Ithome cannot be sep- 

 arated generically from Pcrimcdc is apparently the basis for 

 the accepted view that /. unimaculella is a synonym of P. er- 

 ransclla Cham. While the two insects are superficially much 

 alike, they can be easily separated structurally and by mark- 

 ings. The characters of Ithome Cham, are as follows : 



