Cat. lep. Ph. Brit. Mus.:

542c Cosmosoma dorsicincta. (Plate IX. fig. 1.)
Cosmosoma dorsicincta, Dogn. Hét. Nouv. Am. Sud, v. p. 6 (1912).

female: Head black-brown; thorax yellow with a brown patch at
middle of dorsum; the patagia edged with black towards tips;
legs brown; abdomen orange-yellow San dorsal black spots on two
basal seoments followed by dorsal bands on the other segments,
lateral series of small spots, the ventral surface with narrow black
bands on three terminal segments. Fore wing hyaline, the veins
and margins black, the terminal band expanding widely on apical
area and ‘below vein 2. Hind wing hyaline, the veins and margins
black, the black on termen expanding towards apex.

Hab. Cotompta, Medina (Fass/), type + 2 in Coll. Dognin.
Exp. 32 millim.

AZ NOTE: Cat. Lep. Ph. Brit. Mus. uses a non-standard definition of "tegulae" and "patagia".
From Vol. 1:
"The thorax consists of three segments-the prothorax, bearing the
tegulm or collar-lappets, the patagia or shoulder-lappets, and the
fore legs ..." 

Seitz:

C. dorsicinctum Dogn. Palpi, head and antennae black; collar yellow, shoulder-covers yellow, at 
the apex black. Thorax yellow, in the middle black. Abdomen yellow, with dorsal black bands and subdorsal
black spots. In the male the yellow colour is of a deeper orange, the prothorax blackened, the subdorsal black 
abdominal spots reduced, the 2 last rings quite black. Wings hyaline with black veins, margins and 
large apical spots, at the costal base yellow. Expanse of wings: 25 to 29 mm. East Colombia.