OP HTMENOPTEEA FEOM STJMATBA, ETC. 89 



2. Rhynchium rubkopictum. Smith, Proc. Linn. Soc. v. p. 128. 

 Hub. Morty Island. 



3. Rhynchium metallicum, Sauss. Mon. Gnepes Sol. p. 114. 

 Hub. Morty Island. 



Gren. Pteeochilus, Xlu^. 



1. Pterochilus eximius. p. niger, capite thoraceque flavo varie- 

 gatis J abdominis segmentis flavo marginatis, segmento secundo flavo 

 binotato. 



Male, Length IO5 lines. Opake black, with the disk of the thorax 

 shghtly shining. The clypeus, and a spot above it, between the 

 antennae and the scape in front, yellow. A semicircular spot on each 

 side of the prothorax, an ovate spot beneath the vnngs, and two sub- 

 ovate spots on the scutellum yellow ; the wings fulvo-hyaline, with a 

 fusco-ferruginous stain at the anterior margin of the superior pair, 

 not passing beyond the stigma ; the nervures ferruginous ; the tibiae, 

 tarsi, and knees yellow, with a dark stain on the tibiae behind. Ab- 

 domen, the margins of all the segments bordered with yellow, that 

 on the basal segment recurved at the sides. (PI. IV. fig. 4, c?.) 



Hab. New Guinea. 



All the species of tHs. genus are rare. The present, of which 

 only a single specimen was captured, is one of the finest hitherto 

 discovered. 



aroup SOCIAL WASPS. 



Gen. Ischnogastee, Qmr. 



1. Ischnogaster unicolor. Smith, Proc. Linn. Soc. vii. p. 41. 

 Hab. New Guinea. 



2. Ischnogaster iridipennis, Smith, Proc. Linn. Soc. iii. p. 166. 

 Hab. New Guinea; Sula. 



G-en. Vespa, Linn. 



1. Vespa affinis, Fabr. Syst. Piez. p. 254 (var. V. cincta). 

 Hab. Sula ; New Guinea ; Morty Island. 



2. Vespa bellicosa, Sauss. Mon. Gu^pes Soc. p. 146. 

 Hab. Sumatra. 



3. Vespa dorylloides, Sauss. Mon. Guepes Soc. p. 112. 

 Hab. Sumatra. 



Gen. PoLisTES, Latr. 



1. Polistes simulatus. Smith, Proc. Linn. Soc. v. p. 130. 

 Hab. New Guinea ; Morty Island. 



2. Polistes nigrifrons. Smith, Proc. Linn. Soc. iii. p. 168. 

 Hab. Salwatty. 



