244 Mr. T. D. A. Cockerell—Deseriptions and 
with pale hair; tegule rufo-piceous. Wings hyaline, 
faintly dusky, stigma and nervures dilute sepia. Abdomen 
rather broad, shining. 
Island of Penang (Baker, 9585). 
Related to 7. canifrons, Sm., but known by the minute 
size. 
Trigona breviceps, sp. n. 
Worker.—Length about 6 mm. 
Shining black, the legs and antenne 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 with erect black hair ; 
thorax above with black hair; tegule black. Wings dilute 
fuliginous, stigma and nervures dark brown. Abdomen 
moderately broad. 
Sandakan, Borneo (Baker, 9591). 
Related to 7. itama, Ckll., but easily separated by the 
shorter head and shorter malar space. 
Ceratina sexmaculata, Smith. 
Sandakan, Borneo (Baker, 9280). 
Ceratina penangensis, sp. 0. 
g. (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 Jarge semicircular yellow mark, emarginate above ; 
clypeus with a broad yellow band, having a triangular 
expansion on each side below ; antennz black; area of 
metathorax shining golden, emarginate posteriorly in middle ; 
tegule black. Wings strongly dusky ; second s.m. narrowed 
almost to a point above, and receiving first r. n. far beyond 
middle; anterior femora and tibiz with a yellow stripe on 
outer side; hind tibiz 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 lght 
glaucous-green. 
