AMBRYLLIS; DARITIS. By Dr. M. Hering. 
427 
b. In the forewing the fork of the radials 2 to 5 from the cell-angle, with the 1st median branch 
from the same place or forked; in the hindwing the distance of the 3rd median branch to the 
1st cubitus is at least trvice the distance from the 2nd median branch to the 3rd. 
a. Posterior angle of the cell in the forewing projecting. Scearctia. 
(3. Posterior angle scarcely projecting. Stenognatha. 
2. In the hindwing the 3rd median branch and the 1st cubitus are forked. Graphelysia. 
2. In the hindwing the subcostal is also at the extreme base fused with the anterior edge of the cell (not 
genuine Pericopinae). 
A. Accessory eyes wanting, 1st radial in the forewing anastomosing with the subcosta (Lithosiina). 
Gardinia. 
B. Accessory eyes present, 1st radial always quite separate ( Micrarctiinae ). 
I. In the forewing the 2nd and 5th radials rise almost from the same place. Episcea. 
II. The 5th radial rises considerably before the 2nd. Crocomela. 
1. Genus: Ambryllis Wkr. 
This genus, in the habitus, still strongly recalls the genuine Arctiids. Hind tibiae with 2 pairs of spurs. 
In the fore wing the 2nd radial is not forked with the 3rd to 5th, mostly connected with it by a transverse vein 
or anastomose. 3rd to 5th radial branch forked, the 5th rising before the 3rd, 1st median branch rising separate 
from the fork of the 3rd to 5th radials. In the hindwing the radial ramus and the 1st median branch rise from 
the same place, and so do the 3rd median branch and 1st cubitus; posterior ends of the cell not laciniformly 
produced. The margin exhibits a concave indentation before the anal angle. Hitherto only 1 species is known. 
A. boisduvalii Hoev. (= funeralis H.-Schaff.) (60 b). Head and thorax black, ground of the patagia boisduvalii. 
whitish-yellow, collar above white. Abdomen white, laterally with two rows of black spots, the last segment 
black, \yith an ochreous anal tuft. Wings transparent white, on the forewing the costal margin and anal margin 
are somewhat more densely dusted, with four black, generally red-pupilled spots. On the axillaris usually a 
black longitudinal stripe which, however, may also be absent. Hindwing only with some small, sometimes 
absent, red marginal spots. Beneath as above, the red fillings of the black spots on the forewing more distinct, 
particularly in the spot in the cell. Extreme base on all the wings with an orange spot. In South America from 
Venezuela to South Brazil. 
2. Genus: Daritis Wkr. 
Entirely the same as the preceding genus except that here the indentation of the margin at the anal 
angle of the hindwing is absent. In the species of the genus approximating the preceding there is a considerable 
sexual dimorphism noticeable. 
D. centenaria Barm. (60 d) resembles A. boisduvalii Hoev. in the marking of the wings, but all the centenaria. 
markings are enlarged, the proximal margin of the forewing is broad black. The hindwing has a narrow black 
margin with continuous red spots. Under surface likewise with more pronounced red markings, the costal margin 
of the forewing black, filled up with red. Abdomen white, middle line of the dorsum and of the ventrum 
black, one black lateral line, ground of patagia white, otherwise like the preceding species. Argentina (Zarate); 
Uruguay (Montevideo). 
D. trapeziata Wkr. (= rubripicta Btlr., woodii Btlr.) (60 c). The B resembles yet the preceding species, irapeziata. 
but the black markings in the forewing are still more extensive; in the hindwing the black margin is broader, 
with bluish-white dusted spots, the red likewise broader, on the transverse vein a red, black-edged spot. Collar 
and base of patagia brimstone-coloured, the black markings of the abdomen more extensive. $ with a brownish- 
black ground-colour on all the wings; fore wing partly strewn with red scales, the markings brimstone-coloured, 
dusted somewhat blackish. Hindwing with whitish marginal dots, a red submarginal band being narrow in 
front and broad behind, a brimstone-coloured spot in and behind the cell. Beneath the red is more extensive. 
Abdomen black with above broad, beneath narrow yellow segmental margins, the collar and base of patagia 
being yellow. Distributed from Venezuela to Brazil. 
D. thetis King (= mariamne Geyer) (60 c). Both sexes more similar, in the q the inner area of the thetis. 
hind wing is hyaline transparent, in the $ the whole hindwing is of an ochreous-yellow ground-colour. Patagia 
in front yellow, abdomen red with a black dorsal line and yellow ventral side. — In the form fenestrata Btlr. fenestrata. 
in the $ and $ four fifths of the cell of the forewing are hyaline, in it there is an oblong spot of the ground¬ 
colour, the white markings are broader. —• The form howardi Edw. has in the A the reddish-yellow' colour Jwwardi. 
of the margin of the hindwing for the greatest part replaced by black. —- Larva irregularly banded black and 
ochreous-yellow, the ground-colour being dusky ochreous, a broken black dorsal stripe and irregular subdorsal 
and subventral dots. Segments 5, 6, 9, 11 and 13 feebly banded black. Mexico to Costa Rica, 
