NEW AND LITTLE KNOWN HYMENOPTERA. 243 



Type specimen captured by Mr. E. E. Green and kindly sent to rne. 



The two above described species belong to the IVth Division 

 of the Sphegidao " Tarsal claws with two teeth (Sphex sensu str.)" as 

 laid down recently by Mr. Cameron in his brochure " Hymenoptera 

 Orientalis ; or, Contributions to a Knowledge of the Hymenoptera of 

 the Oriental Region. " 



Family Bembecidje, Westw. 



15. Bembex fossorius, Smith. 



Bembetc fossorius, Smith. Jour. As. Soc. Beng., Vol. XLVII. 

 (1878). pt. II., p. 168, 7. 



Habitat : Burma (Pegu Hills), Tenasserim. 



Female : Length 8| lines: expanse 18 lines. 



Description : 9 Head about as wide as the thorax ; mandibles 

 yellow, their tips dark chestnut brown ; clypeus yellow, convex, 

 rounded above, slightly emarginate anteriorly, the front and cheeks 

 a slightly darker yellow, with in certain lights an almost obsolete 

 silvery pile ; antennas black, the scape in front washed with yellow, 

 the vertex and the back of the head black clothed with a soft silky 

 grey pubescence. Thorax black, smooth and shining above, though 

 very finely punctured, the posterior margin and the sides of the 

 prothorax, a line over the tegulae, a square parenthesis-shaped 

 mark on the posterior margin of the scutellum, a crescentic 

 narrower mark on the postscutellum, with a similar mark on the 

 posterior face of the metathorax lacteous yellow, the sides of the 

 thorax } r ellow ; wings clear hyaline, the tegulae black, nervures 

 brownish yellow ; the legs yellow, the coxae femora and tibiae of 

 the anterior and intermediate legs posteriorly, and the coxae femora, 

 tibiae and tarsi of the posterior pair of legs both anteriorly and 

 posteriorly striped with black, the last joint of the tarsi and the claws 

 chestnut brown. Abdomen black, shining, very finely punctured, 

 the first to fifth segments with broad submarginal bisinuate bands 

 on the dorsal surface not continued on the under side of a dull 

 lacteous yellow, apical segment black. 



This species was first obtained by Mr. Ossian Limborg in Tenas- 

 serim. I have found it common in the Pegu Yoma and in the 

 hills in Tenasserim. In April it has a habit of swarming in °reat 



