220 Mr. T. D. A. CockeYeW—Dis-o-iptioHS an I 



hair or elongated scales, which are not shiny; those on head, 

 thorax^ and legs white or practically so, on abdomen pale 

 bine; margin of scutellum W-like; lateral abdominal patches 

 not divided. A species of the C. histrio gronp, easily known 

 by its large size, and the absence of light marks on scutellum 

 or tarsi. Mandibles with a blunt tooth within ; eyes straw- 

 yellow ; face, cheeks, and occiput with much white hair ; 

 front strongly and densely punctured ; third antennal joint 

 conspicuously longer than fourth ; upper part of pleura 

 covered with white hair, lower part nude, strongly and 

 closely punctured, with a small spot of white hair; meso- 

 thorax with anterior margin except iu middle, and extending 

 on to prothorax, covered with white hair; lateral margins, 

 and posterior ones except in middle, a median stripe an- 

 teriorly, and a spot on each side, also marked with hair ; 

 tibipe with large light patches ; tegument of abdomen slightly 

 purplish on middle of tirst two segments ; abdominal bands 

 all very broadly interrupted iu middle, that on first segment 

 forming a large U-like mark on each side, that on fifth 

 reduced to a pair of large round spots ; venter without light 

 markings. 



Hah. Toowoomba, Australia, no. 93. 189. 



Two specimens. The locality is in S.E, Queensland. 



Triyona canifrons, Smith. 



Adelaide River, Australia, no. 92-4. New to Australia. 



The specimen differs from Biugham^s description of cani- 

 frons in having the hair of the pleura pale cinereous, and 

 the stigma and uervures fuscous ; but a series of T. canifrons 

 from Ceylon, received from Mr. Gi'een, shows these charac- 

 ters, just as in the Australian insect. Judging from the 

 description, I suspect that T. hiro'i, Friese, is a synonym. 



Trigona essi'iytoni, sp n. 



Worker; length 4 mm. 



Black (the abdomen brown-black), smooth and shining, 

 with pale yellow markings as follows : mandibles (except 

 ferruginous tips), labrum, clypeus (except narrow, black, 

 anterior and posterior margins, and two large red-brown 

 spots on disc), wedge-shaped lateral face-marks extending to 

 level of antennae, tubercles, narrow stripe on each side of 

 mesothorax, extending to axilUe, all of scutellum, and apex 

 of abdomen, the last being thinly pubescent with white hair. 

 Antennae reddish brown, the flagellum ferruginous beneath ; 



