380 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. VILL. 
31, BEMBEX TREPANDA, Dahlbom. 
BEMBEX TREPANDA, Dahlb., Hym. Eur., I, p. 181. 
Hasirat : India (Dahlb.), Burma, Tenasserim. 
Fairly common in the plains during the hot weather. Like others 
of the family it is very often found frequenting flowers. 
32. BHMBEX FOSSONUS, Smith. 
BEMBEX FOSsONUS, Sm., Jour. As. Soc. Beng., Vol. XLVII (1878), 
Pt. II, p. 168, 7. Bingh., Jour. Bomb. Nat. Hist. Soc., Vol. V, p. 243. 
Hasirat : Burma, Tenasserim. 
This species as mentioned by me (loc. cit.) is also common. 
33. BEMBEX WESTONII, n. sp. Pl. I, fig. 1. 
Hasitat : Salween Valley, Tenasserim. | 
FEMALE: Length 22 m.m,, expanse 39 m.m. 
Mate : Unknown. 
Description: 9. Head black, mandibles yellow, their tips black, 
labrum clypeus, and front as high nearly as the vertex of the 
head, the cheeks and the scape of the antennz in front pale 
wax yellow; two large spots at the base of the clypeus, 
a spot above them between the insertion of the antenne, a 
spot at the apex of the scape and the flagellum of the antennz 
black, the top of the head and occiput clothed with fuscous 
hairs, which are rather dense and long behind, the clypeus 
convex semicircular above, its anterior margin almost transverse. 
Thorax black, minutely and densely punctured, pubescent posteriorly ; 
the prothorax with a broad yellow posterior margin ; the meso- 
thorax slightly convex; the metathorax short, square, and poste- 
riorly vertically truncated; the sides of the thorax varie- 
gated with dark brick red, the pectus black ; the wings hyaline and 
iridescent, tegulee and nervures dark brown ; legs yellow, the under 
side of the coxee, trochanters, femora, tibiee and tarsi of the anterior 
legs and the same parts except the tarsi of the intermediate and 
posterior legs streaked with black, the anterior tarsi armed on the 
outside with ciliated spines, the claws yellow, their tips black. 
Abdomen black, finely punctured, pubescent, in certain lights it is seen 
to be covered with very short rather sparse stiff black recumbent hairs ; 
the 1st and 2nd segments bear a large yellow irregular macula on 
either side, the following segments except the anal, with biarcuate central 
