Records of Bees. 243 



malar space well developed ; antennas black, with scape red 

 at extreme base, and tla^jt II luii dusky castaneous beneath; 

 face with a little pale greyish hair, but disk of clypeus nude 

 and polished ; occiput with abundant stiff black hair ; 

 mesothorax and pleura; with thin short pale tomentum and 

 scattered erect Ijlack hairs ; scntellum with lon*^ l)la(k hair ; 

 dorsal surface of metathorax vctv large, smooth, and hi|^hly 

 polished; teguhe dark rufous. Wings hyaline, stained with 

 ferruginous, the apical field whitish ; ncrvurcs and stigma 

 clear ferruginous. Legs black, with black hair, tarsi red 

 at extreme apex. Abdomen moderately broad. 



Sandakan, Horueo {Baker, \)7)WS). 



Resembles 7'. castniwa [Mc/ipona cantanea, Bini;h.), but 

 that has the head and thorax mainly castaneons. Also 

 resembles T. Jlaviventris, Friese, but that has the wings 

 quite differently coloured. 



Trigona hamafopteray sp. n. 



Worker. — Length G'Q mm., anterior wing 75 mm. 



Shining black, including the broad abdomen and the legs, 

 except that the tarsi are reddened apically ; head large ; 

 sides of face with thin inconspicuous i)ale hair; occiput 

 with stiff black hair; mandibles dark castaneous ; scape 

 dark castaneous, Hagellum nearly black, except at base; 

 thorax above with stifi" black hair, but witiiout any distinct 

 pale tomentum ; pleura with black hair, the lower part with 

 slightly pallid hair ; tegulaj ferruginous. Wings very 

 strongly reddened, the nervures and stigma ferruginous; 

 trochanters with a red stripe above. Legs witii black hair ; 

 liind tibia; very broad apically. Abdomen with the first two 

 segments highly polished, the others dullish. 



Sandakan, Borneo [Baker, 951)2). 



Uesembles T. melanoiricha, Ckll., but easily separated by 

 the very red wings and smaller, i)aler tegula;. 



Trigona atomella, sp. n. 



Worker. — Length 2*5 mm. 



Head, thorax, and legs shining black, small joints of tarsi 

 testaceous ; abdomen rather dilute sepia-brown, the hind 

 margin of first segment broadly pellucid whitish; fiont 

 with a deep median sulcus ; mandibles and labrum ferrugi- 

 nous ; malar space short anil black ; lower [)art of elypeus 

 sutfusedly reddish; face caneseent with thin white hair; 

 scape ferruginous, flagellum blackish ; scutellum fringed 



