206 * JOURNAL, BOMBA Y NA TUBAL HISTORY SOCIETY, Vol. X. 



transversej twice as broad as high, the antennae inserted low down just 

 above the clypeus, the scape and the first three joints of the flagellum 

 pale reddish, the apical joints dusky black ; the eyes distinctly con- 

 verging above, the ocelli placed iii an equilateral triangle on the 

 vertex, a shallow short impressed line runs vertically down from the 

 anterior ocellus to between the antennas. Thorax, the prothorax 

 very short, its anterior margin convex, the mesothorax broad, slightly 

 convex and rounded above, indications of golden pile on the sides of 

 the scutellum and postscutellum, the metathorax long, gibbous, 

 posteriorly rounded, with a broad shallow central longitudinal 

 sulcation and well marked transverse strijB ; wings hyaline yellow, the 

 front wing from beyond the middle of the 1st discoidal cell, and the 

 hindwnng at the apex dusky purplish, slightly iridescent ; the trans- 

 verse medial nervure of the forewing rises before the apex of the 

 1st submedial cell and the cubital nervure of the hindwing after 

 the apex of the anal cell, the tegute and nervures dusky red ; legs 

 with the base of the coxae black, the apex and outer side, and the 

 trochanter with golden pile, the femora, tibi« and tarsi pale dusky 

 red, the last joint of the tarsi and the claws black, the latter with one 

 tooth on their inferior edges, the tibiae and tarsi of the intermediate 

 and posterior legs studded with minute spines, the inner tibial spur of 

 the posterior legs not more than half the length of the metatarsus. 

 Abdomen black-pruinose distinctly petiolated, the apex studded with 

 ferruginous hairs, 



$ . Differs from the 9 in the pubescence, being silvery instead of 

 golden, the antennas fuscous, the fore wings darker throughout, and 

 the first three segments of the abdomen reddish. 



This very handsome pompilid I procured first on some sandy banks 

 on the Ataran in Tenasserim. Subsequently I met with it in the 

 Runjit valley near Darjeeling, and there is a specimen in the Indian 

 Museum, Calcutta, collected by Mr. Doherty at Margherita in Assam. 



It is with much diffidence I submit the following tentative key 

 to the genera of Indian Pompilidce, ; for though I have spent much 

 time and thought over its construction, and have carefully examined 



