244 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1890. 



numbers and digging into the sandy banks of streams, cuttings on 

 a road, &c. I watched one at work, a female ; she dug rapidly 

 somewhat like a dog with her fore feet, and when the hole was deep 

 enough to contain her whole length, pushed out the loosened sand 

 with her hind legs. 



Tribe Diploptera, Lair. 



Family Eumenid-E, Wesftc. 



16 Zethus cyanopterus, de Sauss. 



Zgthus cyanopterus, de Sauss. Mon. Guepes. Sol, Supp. p. 116. 

 Smith. Cab. Hym. Ins. Brit, Mus. V. 9. 1. 



Calligaster ci/anoptera, de Saus. Mon. Guepes. Sol. 23, 2, $ . 



Habitat : Java, Burma. 



Female : Length 9 lines ; expanse 15 lines. 



Description : 9 Head black ; mandibles narrow, their base 

 pubescent ; the clypeus circular, convex and pubescent, a small 

 tubercle on the front between the antennas, the scape of the latter 

 shining but coarsely punctured, the flagellum opaque black, vertex 

 and cheeks black, shining and coarsely punctured, the former 

 slightly pubescent. Thorax black ; the prothorax coarsely punctured, 

 the punctures running into striae; the mesothorax long, flattened 

 vertically, smooth and shining, the disc having two longitudinally 

 impressed lines which do not reach its anterior margin ; scutellum, 

 postscutellum, and metathorax' in one plane sloping obliquely back- 

 wards, the last having a broad shallow groove longitudinally down 

 the middle, the edges of which are sharp ; wings fuscous brown, 

 with a rich purple effulgence ; legs black, claws of the tarsi bifid. 

 Abdomen black and shining, finely punctured and slightly pubescent, 

 the first segment somewhat flattened, forming a petiole as long nearly 

 as the head and thorax taken together, the second segment with a 

 short petiole, its apical margin with a recurved rim, the remaining 

 segments telescopically closing into the second segment. 



This species is rare in Burma. I procured it in the Pegu Hills, and 

 at Tavoy in November, frequenting flowers. 



Family Vespid;e, Stcph. 



17 Ischnogaster eximius, n. sp. 

 Habitat : Ceylon. 



