Hawkmoths of Brazil by Alan Martin
IDENTIFICATION KEY: AMBULYCINI
P. astygonus: similar to goeldii but lacking the distinct distal spot. Smaller than eurycles and with brown latticing on the hindwings rather than the black of eurycles. No forewing discal band.
P. goeldii: similar to astygonus but note the distinct discal spot. Note also the hindwing pattern. Only found in the North and North-
P. eurycles: larger than astygonus and goeldii. Yellow hindwings with black latticing. The male eurycles has a distinctive central black cross line on the forewing which is less obvious in the female. Note also the short discal band from the costa on the forewing.
P. strigilis: uniform brown forewings and bright orange hindwings. Note the discal spot on the inner margin of the forewing.
P. sulphurea: pale yellow hindwings separate sulphurea from strigilis. Note the narrow fringe to the forewing compared with the broad black sub-
A. daphne daphne: separating daphne from gannascus is very difficult except for ‘classic’ specimens. The classic gannascus specimen has a small comma-
A. gannascus: see daphne above.
A. eurysthenes: identified by the shape and extent of the broad subbasal band. The band extends from the inner to the outer edge of the forewing, but unlike A. gagarini or A. ganascus, the upper edge is irregular. Note also the broad subapical patch.
A. gagarini: the subbasal band extends from the inner to the outer edge of the forewing and is straight on both sides. Note also the large subapical patch.
A. palmeri: the subbasal band is broken but the single narrow line that crosses the forewing below the band is distinctive.
A. roessleri: note the incomplete subbasal band, the broad subapical patch and the hindwing pattern. Only recorded from the North of Brazil.
Note: some Brazilian published papers list Adhemarius ypsilon as occurring in northern Brazil but these records most likely refer to the recently described roessleri.
O. comus: similar to lycidas but with narrower forewings and a more acute apex. The discal spot on acuta is tiny or absent whereas it is always present and conspicuous in lycidas. Comus has only been recorded from the North-
O. lycidas lycidas: see comus above.