160 HYMENOPTKUA OF SARAWAK. 



the eyes at the top separated by the length of the 5th anteimal 

 joint. Mandibles black, the base covered with pale fulvous pubes- 

 cence. Metanotum with a shinning V-shaped fovea on the apex 

 of the basal part. The long- spur of the hinder tibiae is fully 

 longer than the metatarsus, which is as long as the following 2 

 joints united. 



Of the Bornean species this is not unlike T. borneana, Cam.; 

 that species has the eyes more widely separated above, being: 

 there separated by the length of the 5th antennal joint; its 

 wings want the distinct yellowish tinge of varipilosa ; and 

 otherwise is easily known by the shorter and thicker hinder 

 tarsi of which the metatarsus is not much longer than the 2nd 

 joint and shorter than the long joint of the tibial spines. 



Pompilus flavifrons, sp. nov. 



This species resembles closely P. cariniscutis. Cam. from 

 which it may be known as follows : — 



Post-scutellum higher than the scutellum, front broadly black in 

 the centre, apex of clypeus transverse, mandibles for the 

 greater part yellow, scape of antenme black above, apex of 

 bin ler tibia3 broadly black. cariniscutis, Cam. 



Post -scutellum not higher than the scutellum, apex of clypeus 

 broadly curved, mandibles for the greater part black, scape 

 of antenna* yellow, apex of hinder tibiae not black. 



flavifrons, Cam. 



Black, the vertex from near the ocelli, face, clypeus, labrum, 

 outer orbits narrowly from near the top, a broad interrupted 

 band on the apex of the pronotum, scutellum, post-scutellum, and 

 scape of antennas bright yellow ; the apex of femora, tibiae and 

 tarsi rufo-testaceous ; wings hyaline ; the apex from near the 

 base of the radial cell smoky, with a slight violaceous tinge. 



Clypeus broad, tlje apex roundly, but not deeply incised, 

 with the sides straight, oblique. Labrum obliquely depressed. 

 Mandibles black. Palpi yellow. Third abscissa of radius distinctly 

 shorter than second. Metanotum irregularly transversely 

 striated. Penultimate ventral segment covered with long black 

 hair; the others more sparsely and shortly haired. Hinder 

 metatarsus as long as the following 3 joints united and slightly 

 more than one- third of its length. 12 mm. 



Jour. Straits Branch 



