176 THE BEES OF THE SOLOMON ISLANDS, 



15. Scopa red and black 16. 



Scopa all leii; face with black hair .17. 



16. Scopa bright red, black on last two segments; four conspicuous white 



spots forming a curved line between tlie wings... alboniarginata Smith. 



Scopa black at sides of third and fourth segments; no white spots 



between the wings shortlandi Ckll. 



17. Tliorax with hair largely pale, especially at sides wood/ordi Ckll. 



Thorax with black iiair 18. 



18. Larger, 15 mm. long; first or first two abdominal segments black-haired, 



abdomen beyond this red-haired placida Sm. ,vd.r. tiigrohirta Friese. 



Smaller; abdomen above black without red 19. 



19. Larger ventraiin Smith. 



Smaller, but hardly separable from the description mnilis Smith. 



Trigona SAPIENS n.sp. 

 Worker: about Ah mm. long; black, head and thorax shin- 

 ing, without light markings ; head large ; labrum pale ferru- 

 ginous : mandibles chestnut-red ; antennae light ferruginous, 

 the flagellar joints stained with dusky above ; face and front 

 thinly, nearly uniformly clothed all over with dull white hair ; 

 hair of thorax and legs scanty, pallid ', abdomen shining, dark 

 rufo-piceous ; stigma and nervures very dark reddish-brown. 



Hab. — Solomon Islands, July-August, 1909(Froggatt, No. 

 C 18). Related to the Australian T. carbonaria Smith, but 

 readily known by the pale reddish antennae and mandibles, 

 and the evidently hairy upper part of front. Also related to 

 T. canifrons Smith, which it resembles in the colour of 

 antennae and mandibles, but in T . raiilfrons the face is covered 

 with fine white tomentum, while the front is naked and shin- 

 ing. The abdomen of T. canifrons is considerably paler than 

 that of T. sapiens. 



I give a check-list of the bees known from the Bismarck 

 Archipelago, New Caledonia, and all the groups between 

 them. Type-localities are marked with an asterisk. 



Prosopidid^. 

 Meroglossa tttraaantha Ckll. Solomon Is.* 



