48 



whitish, the basal segment enlarged and with a few erect scales on 

 its inner side; thorax and abdomen slightly tinged with yellowish. 

 Legs yellowish white. 



Fore wings very pale brownish gray or bone color, without any 

 markings except faint traces of darker lines upon some of the 

 veins. Fringes slightly paler than the wings. Hind wings and 

 fringes very slightly darker, with a more decided cinereous tinge. 

 Under side of all the wings brownish gray, with the costal margin 

 of the fore wings slightly paler. 



Habitat. California, Washington, D. C. Early stages and 

 food plant unknown. 



PTEROPHORUS PARVUS. 



Lioptilus tparvus Wlsm., Pter. Cal. and Ore., p. 55, Plate III., fig. 12 

 (1880). 



As I have no example of this species, I quote Lord Walsing- 

 ham's description : 



" Head grayish white, a scarcely paler frontal tuft projecting 

 slightly above the long, well-clothed but sharply pointed palpi, 

 which are about twice the length of the head ; antennae pubescent, 

 grayish. 



" Fore wings cleft to scarcely one- third of their length, with no 

 posterior angle to the upper lobe, which is rather narrow, acu- 

 minate and appressed at the apex, dusty grayish, sprinkled with 

 fuscous scales, which form an elongate shade, extending from an 

 ill-defined antemedian fuscous dot to the base of the anterior and 

 to the apex of the posterior lobe ; a small fuscous dot lies imme- 

 diately before and slightly below the base of the fissure ; there is 

 a slight fuscous shade along the posterior margin of the upper 

 lobe, of which the costal portion is rather pale ochreous ; the costa 

 itself whitish. The cilia along the apical margin of both lobes are 

 grayish, spotted along their base with four or five groups of fus- 

 cous scales, of which one is at the extreme apex of the upper lobe. 

 The anal angle appears to be slightly more defined in the second 

 lobe of the fore wings, and the fissure rather wider at the base 

 than is usual in this genus. Hind wings cinereous. Abdomen 

 grayish white ; the legs whitish, first two pairs touched at the sides 

 with grayish fuscous. The first pair of spurs on the hinder tibiae 

 are unequal in length ; the second pair equal to the longest of the 

 other two. 



" Expanse, 15 mm." 



Habitat. California. Early stages and food plant unknown. 



