Cat Lep. Ph. Brit. Mus. Vol. 1:


1098. Eucereon pseudarchias, n. sp.
Eucereon archias, Druce Biol. Oentr.-Am., Het. i. p. 85 (nee Stoll).

Head and thorax dark brown variegated with black; neck with
some crimson or orange; coxoo crimson ; abdomen crimson, wit,h
dorsal triangular black ·patch on basal segments, lateral black fascirP,
and the terminal segment black. ...



Seitz:

E. pseudarchias Hmps. (= arehias Druce) is a rather large species, distinguishable by the doubly contoured pointed arch formed by the anterior transverse line between the submedian fold and proximal. margin, and by the carmine abdomen with a black terminal segment and a large, triangular, jet-black dorsal spot at the base. — The species is very common and distributed from Mexico to the Amazon. -— The red colour of the abdomen may be replaced by a burning orange: aurantiaca form. nov. (25a) which is before  us from Guiana and the Amazon. -— completa form. nov. is another form from the same habitats, in which  the apical spot at the base of the proximal margin is entirely filled up with black, forming a large black spot.