from the Oriental Zoohxjical Rijiua. 85 



cup-sliaped, not quite sessile, slightly longer than it is wide 

 at the apex ; the seeoud longer than wide, the apex with a 

 narrow but distinct depression. Clypeus with the apex trans- 

 verse, as it is also above. Apex ot postscutelhun transverse; 

 the sides of metanotuni bluntly ro-unded, the aj)cx transverse, 

 not much depressed in the middle. The base of the thorax 

 is not quite transverse and with the sides rounded. 

 A distinct species. 



Ancistrocerus megaspilaSj sp. n. 



Black; clypeus,^ mandibles (except the inner edge), the 

 eye-incision, the yellow extending beyond it, a longitudinal 

 line (extending from shortly above the top of the eye-ineisiou 

 to the antennai, its top narrowed, the Iwttom dilated), a short 

 oblique line on the vertex running into the t ip of the eyes, 

 the outer orbits broadly,, a broad line on the sides of pronotiini 

 (extending from the base to shortly beyond the middle), 

 tegulte, basal two thirds of scutellum, the apex of the mane 

 transverse, the sides of the metanotuni broadly, the mark 

 curved and narrowed below, a large almost semicircular mark 

 below the tegulie, a much smaller oblique conical mark on 

 the apex of mesopleurte below, a small transverse mark on 

 the sides of the first abdominal segment at the top of basal 

 slope, a line on the apex of the first to fifth segments (that on 

 the first dilated in the middle, the dilated part with an 

 incision), and a large conical mark on the sides of the second 

 segment, yellow. Legs yellow, black behind at the base. 

 Wings hyaline, the radial and the apex of the costal cellule 

 fuscous violaceous, the stigma dark fuscous; the recurrent 

 nervure interstitial, the second cubital cellule much narrowed 

 in front, but with the nervures apart. ? . 



Total length 10 mm. 



Kuching; March {Ifeivitt). 



Apex ot clypeus transverse, moderately wide. Thorax 

 more than twice longer than wide, the sides at the base 

 broadly rounded, the apex transverse. Apex of postscutellum 

 obliquely narrowed towards the centre. First abdominal 

 segment cup-shaped, not quite sessile at the base; at the 

 centre of its apex is a distinct fovea, there being similar fbvc^e 

 on the second and third ; the segments are smooth, silky. 

 The base of the first abdominal segment is hardly separated 

 from the rest, but is more glabrous and shining. 



Sphegidae. 

 Cerceris baltichistanensis, sp. n. 

 Yellow ; a small longish spot over each antenna, the vertex 



