72 
COSMOSOMA. By Dr. M. Drattdt. 
nigrithorax. 
sectinota. 
rubrobasale. 
entella. 
brinkleyi. 
garleppi. 
hector. 
zurcheri. 
brnsilicola. 
galathea. 
venatum. 
semifulva. 
impar. 
blue spots, thorax and the 4 first abdominal rings laterally vermilion. Abdomen otherwise black with metallic- 
blue dorsal spots, on the 4 last rings also blue lateral spots. Legs red, in some places black. The large ventral 
valve in the laterally silvery white. Immediately discernible from the very similar following species by the 
absence of the triangular blue lateral spots on the first abdominal segments, the discocellular of the forewing 
being also only quite narrow black. Widely distributed and common from Mexico through the whole of Central 
America and Brazil as far as Uruguay, also in St. Thomas, Cuba and Jamaica. — The larva, being yellowish 
on the first and last segments, is covered with black and white hair; on the fifth and eleventh segments there 
are lateral, dense, black hair-tufts. According to Dyar, it lives on Mikania scandens and produces for the pupation 
a large yellowish cocoon interwoven with the black hair. — The extent of the red colour on the thorax varies 
very much, it may be almost quite red, but also nearly quite black, the latter form may be denominated: nigri¬ 
thorax form. nov. (12 b). 
C. sectinota Hmps. (= auge Druce ) (13 c) at first sight looks very much like auge L., but it is easily 
distinguishable by the mostly larger black discoidal spot of the forewing and particularly by a series of lateral, 
triangular, black spots with metallic-blue scales on the first abdominal rings, the apex of the abdomen being 
also much less extensively black. Known from Mexico and Guatemala. 
C. rubrobasale Lathy is discernible from the preceding by its red basal part of the forewing, extending 
yet for some distance along the costa and inner margin. Ecuador. 
C. entella Druce. Head and collar are metallic blue, antennae black. Collar, thorax and abdomen 
above bright-red, the 3 last abdominal rings black; dorsal and lateral spots metallic blue. Ventral side black, 
on the 2nd and 3rd rings white. The fore wings have a red basal part, veins, margins and apex are black; also 
the hyaline hindwings are bordered with black. Expanse of wings: 45 mm. Ecuador. 
C. brinkleyi Rothsch. (13 c) is a magnificent large species from Colombia (Cauca Valley). The head 
is black, on the forehead and vertex with metallic-blue spots; collar and thorax are metallic blue, the shoulder- 
covers scarlet, outside black. The scarlet abdomen exhibits dorsal and lateral rows of triangular, metallic-blue 
spots bordered with black; the last two rings are black. Forehips, middle hips and the whole hindlegs are 
scarlet, the rest of the legs blackish-brown. Antennae black with white tips. Base of the wings scarlet. 
C. garleppi Rothsch. (13 c). Exactly like brinkleyi, but all the red parts are here dark yellow. The thorax 
is yellow; the legs are blackish-brown, the forehips yellow. The bases of the wings are black. Described from 
Bolivia. 
C. hector Stgr. (13 c) differs from the following species merely by its quite unicolorously scarlet 
abdomen. Expanse of wings: 42 mm. Panama (Chiriqui). 
C. zurcheri Druce (13d) is a sexually dimorphous species: the yellow colour of the <$ abdomen is 
in the $ a magnificent scarlet. Head, thorax and apex of the abdomen are black with metallic ultramarine- 
blue spots. From Costa Rica (San Carlos). 
C. brasilicola Strand differs from the preceding by its smaller size, white spots on the head, collar 
and base of the shoulder-covers; but instead there are here no blue spots. Thorax also underneath black, white- 
spotted; also the forehips are white. The ventral valve is golden-yellow; margins of the wings and discocellular 
streaks are narrower black. Expanse of wings: 25 mm. Brazil (Maranhao). 
C. galathea Schaus. Head, thorax and legs black; forehead, spots on the vertex, collar, shoulder- 
covers and forehips white. Abdomen of a deep yellow, above the last 4 rings black with a steel-blue gloss, 
underneath only the two last segments black. Ventral valve black. Wings hyaline with black veins, margins, 
apical and inner-angular spots. Expanse of wings: 29 mm. Costa Rica (Tuis). 
C. venatum Rothsch. (13 d) recognizable by the yellow veins and the distal margin being likewise orange- 
yellow between the median veins; moreover, the costal and inner margins as well as the transverse vein are 
orange; only the lower median vein and the median itself, as well as apical spots and the inner angle are 
black. The body is orange-yellow. Forehead white, vertex and antennae black; palpi black; thorax black- 
spotted; on the abdomen the articular indentations, as well as lateral spots, are black. Peru. 
C. semifulva Druce (13 d). One of the smallest and neatest species, easily recognizable by the yellow 
veins and margins of the middle part of the wings, whilst the base, discoidal spot and distal margins are black 
as in the other species. Head black with a white forehead; thorax and abdomen, except the black apex, yellow. 
Collar and apices of the shoulder-covers black. Apparently nowheres common in Mexico (Orizaba, Jalapa, Mi- 
santla) and Panama. 
C. impar Wkr. (= vernana Druce) (13 d). One of the largest species being on the whole coloured 
and marked like the common auge. Beside double the size, the red of the abdomen is reduced to quite narrow, 
