79 



haps somewtat more oblique, their dark bordering being more marked towards the 

 costal margin than in cincinnatieUa. At the same time the differences are very slight, 

 and those who have an opportunity of collecting larvse of the oak-feeding species 

 would do well to study the subject. 



Lithocolletis gaultheriella sp. n. 



Antennce, closely annulated with white and brown, the brown annulatioDS somewhat 

 wider apart towards the apex. 



Palpi, silvery white, with a small spot on the outer side. 



Head, face silvery white ; frontal tuft saffron mixed with white. 



Thorax, golden-saffron, posteriorly whitish. 



Fore-wings, golden-saffron, shading to golden- brown, no basal streak, three costal 

 and three dorsal snow-white spots, the first two pairs internally dark-margined ; 

 the first costal spot is situated at about one-third the length of the wing, its in- 

 ternal dark margin passing around its apex ; the corresponding dorsal spot 

 commences nearer the base of the wing and sometimes reaches obliquely to, or 

 near, the point of the costal spot ; the second costal spot at half the wing-length 

 is somewhat oblique, square ended, and as in the case of the first is placed some- 

 what beyond its smaller corresponding dorsal spot, which is pointed and has 

 some dark fuscous scales running outwardly from its apex and merging in the 

 darkened lower margin of the costal spot above it ; the third costal spot at one- 

 fourth from the apex is somewhat triangular and lies also farther from the base 

 »than the corresponding smaller spot on the dorsal margin ; before the anal angle, 

 between these spots, lies a cloud of fuscous scaling serving to throw up and 

 make more conspicuous these white markings on the golden-brown ground- 

 color of the wing ; inclosing the apex of the wing is a narrow, outwardly con- 

 cave white streak, not reaching through the cilia on the apical but only on the 

 costal margin; beyond it are a few darkened scales and sometimes one or two 

 whitish ones with them; cilia pale, golden-saffron, tending to golden; gray about 

 the anal angle. The only conspicuous markings on the under side are two pale 

 spots in the costal fringes, corresponding with the last two markings on the 

 upper side. 



Hind-wings, grayish, with golden-gray cilia. 



Ahdomen, gray, anal tuft slightly paler. 



Hind-tarsi, grayish-white, with one or two darker bands above. 



Exp. ah, lO-ll'"™. 



Tyjie $ 9 Miis. WIsm. 

 A single ^ bred from mines on the upper side of Gatiltheria shallon, found at Rouge 



River, Oregon, in May, and bred June. 1872. Three others taken in Mendocino County 



in May and June, and a single specimen also taken near Crescent City, Del Norte 



County, Cal. It is one of the largest species of Lithocolletis. 



Lithocolletis ledella sp. n. 



Antennce, whitish, faintly barred above with brown. 



Palpi, white. 



Head, face white, frontal tuft saffron, mixed with whitish. 



Thorax, golden-saffron with a few white scales. 



Fore-wings, golden-saffron with a white medio-basal streak, somewhat expanding out- 

 wards on the fold and reaching to one-third the length of the wing above it, 

 this is dark-margined on its upper edge ; beyond it are four costal and four dor- 

 sal silvery-white streaks; the first dorsal commences beneath the point of the 

 basal streak and extends obliquely outwards to the middle of the wing, it is 

 dark-margined internally and around its apex; the costal streak above it is short, 

 rather square, and also internally dark-margined; the second costal streak. 



