107 
LEPTOCIRCUS CURIUS. 
PLATE V. Fig. 1. 
Itvauison's Zoolog. lllus. 2d series, PI. 106 — Boisduv. Spec . 
gener. 380. — Pap. Curius, Fabr Donov. Insects of India . — 
Erycina Curius, Godart, Ency. Meth. 
This genus was first proposed by Mr. Swainson for 
the reception of a remarkable insect from Siam and 
Java, to which various situations had been assigned 
by different naturalists. In external aspect it has all 
the appearance of an Erycina , but, on examining 
the disposition of the nervures of the wings, the 
form of the palpi and antenna:, together with the 
structure of the feet, which are all complete in both 
sexes, its close affinity to the true Papiliones becomes 
apparent. The head and body are very thick; 
abdomen short ; eyes large and salient ; palpi very 
short, the articulations very indistinct ; antenna; 
rather long, thickening at the extremity into a club 
which is slightly curved upw T ards. The anterior 
wings are nearly hyaline, and have the discoidal cell 
closed ; the posterior folded longitudinally, and each 
drawn out into a very long tail curved at the extre- 
mity. The expansion of the wings, in the only 
known species, is about an inch and a half; the 
inner half of the superior pair black, traversed in 
the middle by a pretty broad green band ; the exte- 
rior portion, consisting of a large triangular space, 
transparent, with the nervures and external border 
