78 
COSMOSOMA. By Dr. M. Draudt. 
determina- 
tum. 
xanthostic- 
tum. 
durca. 
elegans. 
pellucidum. 
oratha. 
orathidium. 
crathidi- 
num. 
protus. 
festivum. 
centralis. 
zelosa. 
C. determinatum Btlr. (13 1) has a black head and thorax; forehead, vertex, collar, metathorax 
and legs show metallic blue spots; the abdomen is orange-yellow, the 3 last segments black, with lateral blue 
spots; the base of the costal margin exhibits a small blue spot. Distinguishable from the many similar species 
by the absence of small white spots on the thorax and bases of the wings. Colombia (Cundinamarca). 
C. xanthostictum Hmps. (= metallescens Druce ) (13 1) differs from the very similar metallescens by 
its mostly larger size, much more extensive black with metallic blue scaling at the base of the forewing, the 
nearly quite white tarsi and, above all, by the bright metallic blue, not white forehead. The metallic spots, 
particularly of the two first abdominal segments exhibit an intense orange golden lustre. In the $ the 3 last 
abdominal rings are beneath covered with a thick, orange-yellow fur. Mexico (Tabasco, Misantla [October]), 
Guatemala, Panama. 
C. durca Schaus (= ? nigripes Heyl.) (13 1). Body black, head, collar, shoulcler-covers and thorax 
with metallic blue spots, also the sides of the abdomen. The ends of the tarsi are white. At the base of the 
forewing a metallic blue spot. From the following, very similar, larger species it differs by the laterally 
blue-spotted abdomen and the black apex of the forewing being only moderately broad. Brazil (Sao Paulo). 
C. elegans Btlr. (14 a) differs from the preceding, very similar species by the quite unicolorously 
black abdomen without any lateral blue spots and the very much broader black apex of the forewing, the 
proximal borderline of which stands almost vertically on the costal margin. Brazil (Espiritu Santo). 
C. pellucidum Lathy resembles Pheia sperans (12 e). Body black, forehead and forehips white, collar, 
shoulder-covers and thorax blue-spotted. The first 5 abdominal rings exhibit red sublateral stripes, the venter 
is white except the 2 last rings. Wings hyaline with broad black margins and apical spots. Brazil. 
C. oratha Druce (14a). Black, forehead white; collar and metathorax blue-spotted, shoulders with 
carmine spots. Legs blue-striped, forehips white-spotted. The abdomen exhibits obsolete blue subdorsal stripes, 
on the last ring a dorsal blue spot, the first ring exhibits lateral carmine spots. The forewings are black, at 
the base with blue dots, and with hyaline spots in and below the cell and 3 or 4 smaller spots behind the cell; 
the hindwings show hyaline spots behind and below the cell. On the under surface all the wings are roughly 
scaled towards the margins, like in the 2 following species. British Guiana. 
C. orathidium Druce (14 a) differs from the preceding by white, instead of red shoulder-spots, other¬ 
wise very similar. Nicaragua. 
C. crathidinum Bothsch. (14 a) differs from the preceding species by the wings being as usually exten¬ 
sively hyaline. Habitat unknown. 
C. protus Druce (14 a). Head, thorax, abdomen and legs black with metallic blue spots, shoulder- 
covers orange-yellow, antennae black with white tips. Forewings at the costal and inner margin, the base and 
in the angle of the rise of the median veins and of the lower radial golden orange; this latter spot is coherent 
with a similar one at the inner angle. The apex of the hindwing exhibits on the under surface peculiar 
grey rough scaly hairs. This easily recognizable species has hitherto only been found in Mexico: Jalapa, Orizaba 
(October). 
C. festivum Wkr. (= aleus Schaus) (14 a). This smaller, sexually dimorphous species shows on 
the black head and abdomen metallic blue spots, on the collar and slioulcler-covers orange-brownish spots. 
On the forewing the base, costal and inner margin are dark orange-brown. The black of the apical spot and 
of the inner angle, which in the <$ is expanded to a large spot being connected with the middle spot, shows 
a brownish admixture. The border of the hindwing in the $ is more than twice as broadly black as it is in 
the $. Widely distributed and common in Mexico, Guatemala, Honduras, Costa Rica. 
C. centralis Wkr. (= bura H.-Schdff.) (14 a) is easily recognizable by the triangular, orange spot 
between the lower median vein and the lower radial of the $ forewing, the orange colour of the inner margin 
extends also for some distance, before the black border, up the distal margin. The body is black with metallic 
blue spots on the forehead, vertex, collar, thorax, legs and abdomen. The black-margined shoulder-covers 
and a lateral spot at the base of the abdomen are orange. The $ is without the orange spot of the forewing, 
but the venter is orange, instead. Distributed from Panama through Brazil as far as Paraguay. 
C. zelosa Dogn. (14 b) is presumably only a profusely yellow tinged form of centralis. Head black, 
on the forehead and hindhead with metallic bluish-green scales and yellow hair; shoulder-covers orange-yellow, 
bordered with black. The 4 first abdominal rings are orange-yellow, black-curled and with dorsal and lateral 
bluish-green spots; the other rings black with bluish-green spots, anal end with yellowish hair. Legs black 
with yellowish ends of the tarsi. Wings hyaline with black veins and, particularly on the hindwings, broad 
distal margin. Bases of both wings, costal and inner margin of the forewing, as well as the proximal bordering 
of the distal margin of the forewing from the inner angle as far as the middle radial upwards orange; in 
