LEILUS Surinamensis.
Surinam Emerald Butterfly.
Family, Papilionidæ. Sub-fam Papilionæ. Genus, Leilus. Sw. (Fissirostral or Hesperian type) Sub-genus. Leilus proper. Sw.
Synopsis of the Sub-genera.
| I. | Typical. Antennæ filiform, thickened in the middle; posterior wings with long pointed tails. | Leilus. |
| II. | Sub-Typical. Antennæ as in the last, but arcuated near the tip. Tails of the posterior wings short and obtuse. | Orontes. |
| III. | Aberrant. Antennæ clavate; front very hairy; tails none. | Ripheus. |
| Antennæ clavate; wings hyaline; tails very long. | Leptocircus. |
Specific Character.
Wings black, varied with lines and bands of emerald-blue green: posterior tailed; the green spots round the margin running into each other; tails nearly white.
Papilio Leilus. Linn. Sys. Nat. 2. 750. Fab. Ent. Sys. 3. p. 21. Merian. Surin. pl. 29.