95 
HELEONA FENESTRATA. 
PLATE IV. Fig. 1. 
Guerin. — Swainson's Zoo/. IRust., pi. 1 16. 
This and the following genus belong to the family 
of the Anthroceridae, of which many small and 
finely coloured species are known as occurring both 
in this country and on the continent. Several of 
these we have already characterised, and shall pro- 
ceed to describe the only exotic examples which we 
can here afford space to introduce. 
Heleona is characterised by Mr. Swainson as 
having the anterior wings papilioniform, that is, 
with the exterior margin as long as the posterior, 
or even longer ; the hind wing lengthened perpen- 
dicularly, but short and rounded ; the antennas pec- 
tinate in both sexes. The typical species is the 
Phal. militaris (Cramer, i. pi. 29 B. ; Koescl, Ins. 
Belust., vol. iv. p. 6. fig. 3 ; Donovan, Ins. of 
China, pi. 43), an elegant insect found in several 
parts of Eastern Asia. It expands nearly four 
inches; the upper wings with the inner half yel- 
low, spotted with violet-blue, the apical half blue 
spotted with white ; the hind wings yellow, with 
