COLLECTED IN BORNEO, ETC. 101 



the apical margins of the anterior pair with a pale fuscous border ; 

 the nervures ferruginous. Abdomen : sub-opake, smooth and slightly 

 shining. 

 Hab. Borneo (Sarawak). 



Gen. Pelopceus, Latr. 



1. Pelopceus Javanus. 



Pelopceus Javanus, St. Farg. Hym. iii. p. 309. 

 Hab. Borneo (Sarawak), Malacca. Java. 



2. Pelopceus fervens. P. ater; clypeo scapoque antice, pedibus 

 abdomineque ferrugineis ; alis subhyalinis. 



Female. Length 8 lines. Black ; the scape in front, the clypeus and 

 tips of the mandibles ferruginous. Thorax : the posterior margin of 

 the prothorax, the tegulre, a transverse line at the base of the scutellum, 

 the tips of the anterior and intermediate femora, the posterior pair, 

 except their base, the tibia; and tarsi, ferruginous ; the apical joints of 

 the tarsi fuscous ; the wings subhyaline, with a black spot at the apex of 

 the superior pair ; the nervures ferruginous ; the mesothorax finely 

 striated transversely, the metathorax much more strongly so; the 

 head and thorax thinly covered with long thin pale pubescence. 

 Abdomen : ferruginous, with the base of the petiole black ; the three 

 apical segments fusco-ferruginous. 



Hab. Borneo (Sarawak). 



Fam. L ABRIDGE, Leach. 



Gen. Taciiytes, Panzer. 



1. Tachytes nitidulus. 



Crabro nitidulus, Fabr. Piez. Syst. 309. 7- 

 Hab. India. Borneo. 



2. Tachytes argentatus. 



Tachytes argentata, ErulU, Fxped. Sc. de More'e, iii. p. 372. 

 Hab. Singapore. The Morea. Albania. 



3. Tachytes aurifex. T. ater; facie aurate pubescente ; pedibus 

 ferrugineis ; alis flavo-hyalinis ; abdomine aurato-fasciato. 



Female. Length 10^ lines. Black; the face densely clothed with 

 golden pubescence; the cheeks and vertex behind, with a changeable 

 golden pile ; the scape and mandibles at their base, ferruginous, the 

 former black at their base above ; the palpi pale ferruginous. Thorax : 

 with a changeable golden pubescence, very dense and shining on the 

 posterior margin of the prothorax, the margins of the mesothorax 

 and on the post-scutellum ; the tegulac and legs ferruginous ; the 

 cox?e and femora fuscous ; the wings flavo-hyaline, palest towards the 

 apical margins, which have a pale fuscous narrow border. Abdomen : 



