22 Mr. P. Cameron on new Aculeate Hymenoptera 



the two recurrent nervures are separated by a distinctly 

 greater distance than the length of the second cubital cellule 

 above. Abdomen black ; the basal two segments rufous ; 

 the apical segments dark rufo-tcstaceous ; the segments are 

 thickly banded with silvery pubescence. 



Conies nearest to T. tarsata, Sm., but that is a much 

 larger species (15 nmi.) and differs from it in many respects. 



Tachytes hrevipennis, sp. n. 



Nigra, dense argenteo pilosa ; alis brevis, costa stigmatcquc rufo- 



testaceis, nervis fuscis. $ . 

 Long. 12 mm. 



Hah. Barrackpore {Rotlmey). Coll. Rothney. 



Front and vertex alutaceous ; the front and oral region 

 thickly covered with silvery pubescence; the ocellar region 

 raised, with a shallow furrow down its middle; the ocellus 

 is broader than long; the depression behind is shallow, in- 

 distinct, and narrowed to a point behind. Clypeus shining, 

 depressed, its apex depressed. Mandibles at base thickly 

 covered with silvery pubescence ; palpi dark testaceous. 

 Thorax thickly covered with silvery pubescence and with 

 long white hair ; closely and minutely punctured ; the meta- 

 pleurje obscurely striated at the basej the hairon the mesonotum 

 has a golden tint ; the sternal process wide and triangularly 

 incised at the apex. Wings shoit, not much longer than the 

 head and thorax united, not reaching much beyond the middle 

 of the abdomen ; hyaline, with a slight yellowish tint ; the 

 costa and stigma testaceous ; the nervures darker ; the first 

 and second cubital cellules are almost equal in length and 

 are as long as the space bounded by the recurrent nervures ; 

 the second recurrent nervure has a bread round curve below 

 the middle. The furrow on the apex of the median segment 

 is wide and deep in the middle, and does not reach to the 

 top or bottom. Legs thickly covered with silvery pubescence ; 

 the spurs testaceous ; tlie tibial spines pale ; the apical two 

 joints of the fore tarsi are rufous ; the tarsal spines are long 

 and white; the claws testaceous j the fore tarsi bear 

 long white spines. The basal four segments of the abdomen 

 are broadly fringed with bilvery pubescence, which has a 

 more golden tint towards the apex ot the segment. Pygidium 

 covered with stiff black, intermixed with bright golden, 

 pubescence. 



