960 
LITODONTA. By Dr. M. Dratjdt. 
conspecta. 
crrucata. 
apt calls. 
leptinoides. 
biedermani. 
hydromeli. 
fusca. 
contrasta. 
centigerna. 
nigri- 
puncta. 
downward, and a posteriorly open dark brown V-mark edged with white on the 8th to 10th segments; the first 
3 segments exhibit a broad purple brown dorsal stripe. Moreover it is rather variable and lives on nearly all 
sorts of foliage trees, chiefly on species of Pirus and Primus. —- f. conspecta Ediv., the race from California, is 
larger, lighter, with a purer white median area and purer white hindwings. The type is distributed over nearly 
the whole of the United States and Canada, and common. 
S. errucata Dyar is very similar to unicornis , smaller, without the red-brown tint in the postmedian area 
and with purely white hindwings which are also in the $ whiter than in unicornis. — The larva is very different; 
green, with a purple brown dorsal band of the first 3 segments, behind the dorsal appendage with an equally 
broad white stripe which is edged with brown, the sides being speckled brown. Described from Texas. 
S. apicalis Grt. is Rob. (149 e). Forewing reddish brown or greyish-brown, strewn with white, with a 
black basal ray and a white median area; the black cell-end streak is thicker and more bent than in unicornis, 
behind it a spot of darker dusting with dark brown internerval stripes to the margin; the posterior transverse 
line is white. Hindwing white with a large dark anal spot. From Maine, New York, Arkansas, and Florida; 
nothing is known of its life-history. 
S. leptinoides Grt. (= mustelina Pack.) (149 e). Forewing ash-grey, mixed with whitish in the median 
area, brownish at the inner margin; the discal streak is black like the branches proceeding from it; the posterior 
transverse line is double, dentate, dirty white, the veins behind it black. Hindwing white, smoky at the distal 
margin with a dark anal spot. The $ is more lead-coloured, with obsolete transverse lines, the discal dot small, 
the distal margin somewhat lighter with blackish or also red-brown wedges between the veins. — Larva brown, 
with a purple brown dorsal stripe as far as the protuberance on the 4th segment, behind it with oblique streaks 
directed posteriorly downward, and a posteriorly open V-mark from the 8th to 10th segments. It chiefly lives 
on Hickory and walnut, but also on all sorts of other foliage trees. Maine to Georgia, to the west as far as Illinois. 
S. biedermani B. is McD. (= clammenhoa Dyar) (149 f) is a very large species with grey forewbngs 
mixed with somewhat red-brown especially sub terminally, a black basal ray and discal streak and double black 
fine transverse lines, the anterior one more in round bows, the posterior one dentate, filled somewhat lighter; 
behind the cross-vein streak is a spot of darker dusting and 2 red-brown longitudinal rays above and below T the 
median radial branch to the margin, before which there are black internerval streaks partly distally edged 
narrowly with white; a thicker black streak subapically in the somewhat lighter grey apex. Hindwing white 
with a black anal spot. Arizona, Mexico. 
68. Genus: Utodoiita Harv. 
Chiefly separated from the preceding genus by the hairy though tuftless head, and the antennae being 
pectinated to the tips. Wings short and broad, neuration as in the preceding genera, vein 5 of forewing from 
the centre of the cross-vein, the costal vein of the hindwing arises a little before the cell-end. 
Type of genus: L. hydromeli Harv. 
L. hydromeli Harv. (149 f). Forewing yellowish olive, with 3 fine double black transverse lines, a curved 
discal streak and grey strewing behind it and also at the inner margin; a submarginal row of blackish spots, 
somewhat more coherent in a lunar shape towards the costal margin. Hindwing white, feebly smoky at the 
margin. In two generations in Texas and Florida. — f. fucsa Harv. is a much darker blackish form, and - 
f. contrasta B. is McD. is likewise a dark form with smoky brown forewings, the transverse lines filled with 
white at the costal margin, the posterior one quite indistinct and interrupted, a white spot at the apex, the 
submarginal spots yellowish in the dark ground. From Arizona. 
L. centigerna Schs. Head and thorax greyish-brown, frons darker; abdomen white, mixed with 
cinnamon, forming transverse bands towards the base, white beneath. Fore wing white with brown lines; sub- 
basal line feeble, the antemedian area brown, mixed with white below the cell; anterior transverse line double, 
dents of the interior line extend almost to the base; median area dark brown at the costal margin, below it only 
strewn brown, with a fine line in the cell; postmedian line brown, double, distally angled on 7 and 3; the cellular 
branches are blackish-brown; the deeply dentate sub terminal, line is white. Hindwing wirite, fawn-coloured 
at the distal and inner margins. Expanse of wings: 27 mm. Brazil (Rio Purus). 
L. nigripuncta Schs. (149 f) differs greatly from the other species. Forewing whitish, strewn with grey, 
the median area darkened steel-grey, with indistinct, light-shaded transverse lines and 2 thick black dots at the 
base, 2 at the apex, one at the inner angle and a thick round one at the cell-end. Hindwing white, brown in the 
female. Brazil'(Parana, Matto Grosso). 
