OF MTSOL, CERAM, WAIGIOU, BOUETJ, AND TIMOR. 35 



pile ; the wings subhyaline and iridescent. The abdomen shining and 

 with a thin silky pile. 



Hab. Waigiou. 



4. Larrada sabulosa. L. nigra, facie metathoraceque aurato-pubes- 

 centibus, alls flavo-hyalinis. 



Female. Length 8 lines. Black and slightly shining ; a spot at the 

 base of the mandibles and the face clothed with golden pubescence. 

 A narrow border on the posterior margin of the prothorax, a line on 

 each side of the mesothorax, and the metathorax above with rich 

 golden pubescence; the tibiae and tarsi sti'ongly spined. Wings flavo- 

 hyaline, the nervures ferruginous, the apical margins of the anterior 

 pair fuscous. Abdomen smooth, with a silky gloss. 



Hab. Ceram. 



Gen. PisoN, Spin. 



1. Pison nitidus. Smith, Proc. Linn. Soc. iii. 160. 1. 

 Hab. Mysol ; Aru ; Key Island. 



2. Pison pallidipalpis. P. niger, capite thoraceque punctatis ; ab- 

 domine uitido, segmentorum marginibus argentatis. 



Female. Length 5 lines. Black; the head and thorax closely and 

 finely punctured ; the clypeus, sides of the face, and inner orbits of 

 the eyes, terminating in their sinus, with bright silvery pubescence ; 

 the tips of the mandibles rufo-piceous; the palpi pale testaceous; the 

 cheeks silvery. Thorax : the sides and the legs with fine cinereous 

 pubescence ; the sides of the metathorax with longer silvery-white 

 pubescence ; a deep longitudinal channel runs down the middle from 

 the base to the apex ; the wings subhyaline, the nervures black, the 

 tegulae testaceous. Abdomen shining, closely and very delicately 

 punctured ; the apical margins of the segments with fasciae of silvery 

 pile, only observable in certain lights. 



Hab. Ceram. 



Fam. CEABEONID^, Leach. 



Gren. Tetpoxtlon, Latr. 



1. Trypoxylon placidum, T. nigrum, clypeo argentato-pubes- 

 cente ; abdominis basi, mandibulis pedibusque ferrugineis ; alis hya- 

 linis, iridescentibus. 



Female. Length 3| lines. Black ; the face, inner orbits of the eyes, and 

 the cheeks with silvery pubescence ; the mandibles, tibiae and tarsi 

 ferruginous ; the metathorax shining, the sides with a little silvery 

 pubescence, the middle with a deep longitudinal furrow ; the wings 

 hyaline and iridescent, the nervures testaceous. Abdomen finely jiubes- 

 cent, with the three basal segments ferruginous, the third dusky above ; 

 beneath ferruginous, with the two apical segments slightly dusky. 



Hab. Mysol. * 



2. Trypoxylon gracillimum. T. nigrum, clypeo argentato-pubes- 

 cente ; alis hyalinis, iridescentibus ; tarsis rufo-testaceis. 



3* 



