SMITH ON HYMENOPTEEA OF XRV ISLANDS. 157 



G-en. SALirs, Fahr. 



1, Salius malignus. S. niger, pube cinerea sericea vestitus; alis 

 fuscis, albo fasciatis. 



Female. Length 9 lines. Black, and covered with a fine thin ashy 

 pile ; the scape in front, and the anterior margin of the clypeus nar- 

 rowly, obscure yellow ; the mandibles ferruginous at their apex, which 

 has a single notch ; the palpi pale rufo-testaceous. Thorax : the pro- 

 thorax with a slightly interrupted narrow fascia a little before its 

 posterior margin, and the scutellum, yellow ; the anterior femora 

 broadly dilated, and, as well as the anterior tibiae, ferruginous within ; 

 the intermediate tibiae ferruginous at their apex in front, and the 

 posterior pair with a yellowish-white spot at their base outside ; the 

 calcaria pale testaceous, the claws ferruginous, the anterior tarsi en- 

 tirely so, but more or less obscure; the posterior tibiae slightly spi- 

 nose ; the anterior wings brown, with a white fascia crossing at the 

 first discoidal cell, and a second at the apex of the third submarginal, 

 the extreme base and the anterior margin of the externo-medial cell 

 hyaline. Abdomen : the apical margins of the segments with a little 

 bright silvery pile. 



Hab. Aru. 



Gen. Mtgnimia, Smith. 



1. Mygnimia aspasia. M. caeruleo-nigra ; capite thoraceque pube 

 holosericea vestitis; alis fulvo-hyalinis ; abdomine pilis iridescentibus 

 vestito. 



Female. Length 14 lines. Black, with shades of blue in certain lights ; 

 the abdomen with bright tints of blue and violet, caused by fine iri- 

 descent changeable pile j the legs have a similar pile, very bright on 

 the femora within ; the head and thorax with a short black velvety 

 pubescence ; the wings flavo-hyaline ; the nervures pale ferruginous ; 

 the extreme base of the wings blackish, their apical margins with a 

 narrow fuscous border. The legs spinose ; the posterior tibiae with a 

 double row of strong serrations. 



Gen. Sphex, Fair. 



1. Sphex argentata, Dahlh. Hym. Eur. i. 25. 1. 



Hab. Aru ; Celebes ; Sumatra ; India ; Greece j Africa ; East Florida. 



2. Sphex sericea, Fabr. Syst. Piez. 211. 19. 



Hab. Aru J Malacca; Borneo; Java; Philippine Islands. 



3. Sphex aurifrons. S. niger; facie pube aurea vestita, alis flavo- 

 hyalinis apice fuscis, abdomine pilis sericeo-aureis vestito. 



Female. Black ; the face densely clothed with golden pubescence, the 

 head having a number of scattered long golden-yellow hairs. Thorax 



