78 



Gn. ? sp. ? mining Acer saccharinum. Chamb. Can. Ent. IV, 1*24 (1872). 



= Lithocolletis sp. ? Chamb. Can. Ent. Ill, 166 (1871) : IV, 124 (1872). 

 Metonius Icevigatus Say. Mining Desmodium. Chamb. Can. Ent. IV, 124 (1872). 



= Leucanthizal sp. Chamb. Can. Ent. Ill, 166 (1871) : IV, 124 (1872). 



Lithocolletis chambersella. 

 = quinquenoteUa Chamb. 



Chambers describes a species of this genus as quinquenoteUa, this name being 

 preoccupied by a European species. I would suggest the name of chambersella to re- 

 place it. 



Lithocolletis umbellulariae sp. n. 



Antennae, white, evenly dotted with brown along their upper sides, the five brown 

 spots towards the apex being larger and more widely separated than the others. 

 Palpi, shining white. 

 Head, face shining white, frontal tuft yellowish in the middle, saffron-brown at the 



sides. 

 Thorax, golden saffron, whitish behind. 



Fore wings, golden saffron, somewhat shining, a short white patch at the base of the 

 dorsal margin reaches to the fold and is exteriorly dark margined ; the dark mar- 

 gin, of a somewhat similar white spot on the costal portion of the wing, also 

 reaches to the opposite side of the fold a little beyond it ; at one-fourth of the 

 wing-length is a waved white fascia running nearly straight from the dorsal mar- 

 gin to the fold and bulging outwards beneath the costa; this is distinctly dark- 

 margined externally throughout and briefly so internally ; immediately adjoining 

 the costal margin at half the wing-length is a broad, very oblique white costal 

 streak dark-margined on both sides and freely dusted with blackish scales around 

 the apex ; the black dusting is continued along the outer side of an opposite less 

 oblique dorsal streak, the apex of which reaches as far as the edge of the costal 

 streak ; above it, at three-fourths the wing-length, is a white costal spot slightly 

 margined with blackish atoms, and opposite to this is another white dorsal streak, 

 very oblique, externally margined at the apex with dusky atoms, which are con- 

 tinued so as to form a large patch of black dusting at the apex of the wing, on 

 the upper side of which patch lies a sickle-shaped white costal streak, concave 

 towards the costal margin ; cilia pale saffron, with a brown line running through 

 the middle and reaching around the apex nearly to the anal angle, where they 

 become paler, inclining to grayish. 

 Hind icings and cilia, pale grayish. 



Abdomen, dark gray above, grayish-white beneath ; anal tuft, yellowish. 

 Hind tibia, white, with two broadish black bars across their upper sides and a small 



black terminal spot. 

 Exp. al., 9 mra . 

 Type, $ $ Mus. Wlsm. 



Mendocino County, Cal., found and bred in the month of June, 1871. Three speci- 

 mens, from large diffused blister-like mines on the upper side of leaves of TJmbel- 

 lularia californica Nuttal ; the pupa being inclosed in a semi-transparent flat oval 

 silken web within the mine, like that of cincinnatiella Chamb., to which species it is 

 somewhat allied. Its nearest ally in America is probably macrocarpella F. and B., 

 but it differs in the possession of a dark-margined costa-basal spot and in the com- 

 paratively straight first fascia. 



These characters also serve to separate it from cinci7inatiella Chamb. I think it is 

 open to question whether cincinnatiella may not be a form of macrocarpella. The only 

 differences I can detect in comparing authenticated specimens of each species are 

 the somewhat larger size of macrocarpella and the less shining appearance of the 

 ground-color of the wing ; moreover, the white streaks appear to be duller and per- 



