244 ]\Ii-. T. D. A. Cockerell — Descriptions and 



with pale hair ; tegulje rufo-piceons. Wings hyaline, 

 faintly dusky, stigma and nervures dilute sepia. Abdomeu 

 rather broad, shining. 



]sland of Penang {Baker, 9585). 



"Related to T. canifrons, Sm., but known by the minute 

 size. 



Trigona breviceps, sp. n. 



Worker. — Length about 6 mm. 



Shining black, the legs and antennae black, but scape 

 testaceous at extreme base ; head, unusually broad and short, 

 the facial quadrangle very broad ; malar space short ; 

 mandibles and labrum black ; occiput Avith erect black hair ; 

 thorax above with black hair ; tegulye black. Wings dilute 

 fuliginous, stigma and nervures dark brown. Abdomen 

 moderately broad. 



Sandakan, Borneo (Baker, 9591). 



Related to T. itama, Ckll., but easily separated by tlie 

 shorter head and shorter malar space. 



Ceratina sexmamdata, Smith. 

 Sandakan, Borneo {Baker, 9280). 



Ceratina penang ensis, sp. n. 



^ . (Type.) — Length about 6*5 mm. 



Closely and strongly punctured ; general colour olive- 

 green, shaded with brassy, the sides of face almost golden, 

 sides of front flushed, with lilac, disk of mesothorax strongly 

 suffused with lilac; abdomen beyond the third segment 

 glaucous-green, the hind margin of fourth flushed with 

 golden, especially in middle ; mandibles black ; labrum 

 with a large semicircular yellow mark, emarginate above ; 

 clypeus with a broad yellow band, having a triangular 

 expansion on each side below ; antennae black ; area of 

 metathorax shining golden, emarginate posteriorly in middle ; 

 tegulse black. Wings strongly dusky ; second s.m. narrowed 

 almost to a point above, and receiving first r. n. far beyond 

 middle ; anterior femora and tibias with a yellow stripe on 

 outer side ; hind tibite with a yellow spot at base ; abdo- 

 minal segments 2 and 3 each with a pair of transverse 

 smooth lines ; end of abdomen broadly truncate, the corners 

 of the truncation obtuse, and with a small dentiform angle 

 at each side ; underside of abdomen banded with light 

 glaucous-green. 



