BY ERNEST OLIVIER. 
57 
later in the same tube as a single female captured at 
another place or time. 
The males can be caught easily with the assistance of a 
net, and they can also be attracted by a lamp placed oh 
the ground, preferably on a white cloth, on which they will 
settle, and thus be easily captured. 
The Bornean Lampyridse known up till now are only 
twenty-five species, belonging to eight genera. One species 
is described here for the first time. 
They can be divided and characterised as follows :■— 
I. Antenna long, compressed, pectinate or strongly 
SERRATE. 
Last ventral segment mucronate . 
1. Vesta urens, Gorh.—Scutellum black, legs black. 
2. Vesta proxima , Gorh.-™Scutellum yellow, thighs yellow, 
tibiae and tarsi black; thorax sinuate with the 
front rather acuminate. 
3. Vesta aurantiaca, Era. Oliv.—Scutellum rufous; legs 
wholly black. 
4. Vesta rotnndata , Era. Oliv.—Scutellum rufous; thighs 
rufous; knees, tibiae, and tarsi black; thorax 
semicircular. 
Last ventral segment semicircular , or truncate , or slightly 
notched, 
5. Pyroccelia terminata , Gorh. — Thorax yellow; elytra 
yellow with black tip. 
6. Pyroccelia morosa , Era. Oliv.—Thorax yellow; elytra 
fuscous with yellow margin. 
7. Pyroccelia opaca, Em. Oliv.-—Thorax yellow; elytra 
wholly black ; abdomen yellow. 
Var. rostrata , Era. Oliv.—Thorax strongly acuminate. 
II. ANTENNiE SIMPLE, FILIFORM. 
1. Hind angles of the thorax with one circular 
impression to their tip . 
8. Ototreta borneensis , Era. Oliv.—Thorax piceous; elytra 
piceous with their tips black; antennae black. 
