116 Mr. T. D. A. Cockerell — Descriptions and 



fuliginous as far as level of the orange-ferruginous stigma, 

 beyond th:it niilky-wiiite ; hind tibise fringed with black 

 liair. Abdomen shining dark reddish brown, the apical half 

 blackened, venter palbd towards l)asc. 



Sandakan, Borneo (Baker, 9964). 



Known from T. apicalis. Smith, by the black legs. The 

 shiny head and thorax separate it from T. coUiiia, Smith. 



The distribution of Triyma in the !Malay region is very 

 extraordinary. From the Phiiiijpines we know only three 

 8[)ecies. Of these, two are from Palawan only. Borneo, on 

 the other hand, has 25 species. More species are known 

 from Penang than from the whole Philippine group. In 

 Borneo, the species appear to be largely confined to limited 

 areas ; thus among the numerous species from Sandakan are 

 none of the nine described from Borneo by Cameron. The 

 deficiency of species in the l^hilippines cannot well be due to 

 lack of material, as Messrs. Baker and ^IcGregor have sent 

 me large collections from those islands. That the Philippine 

 bees are really fairly w^ell known is shown by the fact that 

 a fine collection from Panay, whence no bees had previously 

 come, contained only two new things, a species of Nomia 

 and a variety or race oi Megachile. 



Trigona rufibasalis, Cockerell, variety a. 



Scape red only at base. 

 Sandakan, Borneo (Baker). 



Trigona scintillans, sp. n. 



Worker. — Length about 3 mm., anterior wing 2'8 mm. 



Head, thorax, and abdomen shining l)lack, not hairy ; the 

 face with a little pale hair at sides, but not canescent ; 

 labrum and mandibles bright ferruginous ; scape pale ferru- 

 ginous in front, Hagcllum dark ; teguhe very dark reddish. 

 AVings hyaline, stigma and nervures dilute sepia. Legs 

 black, the small joints of tarsi ferruginous. Abdomen 

 broad. 



Sandakan, Borneo (Baker). 



Differs from 7'. ertjtlirostoma^ Cam., by the smaller size 

 atul the stigma not black. Easily known from 7'. aio7)iel/a, 

 Ckll., by the narrower head and non-canesceut face. 



Melipona flavolinea/a, Friese. 



" Guyane, Maroni." From Queensland ]\Iuscuni. 

 I'rigona cluvipes (Fabr.) comes from the same locality. 



