516 JOURNAL, BOMB A Y NA TUBAL HISTORY SOCIETY, Vol. XIX. 



as long as the head and thorax united, pygidium very long, sharply pointed 

 with a few scattered shallow punctures. Black ; the mandibles, labrum, scape 

 of antennae, and apical 3 or 4 joints of the tarsi more or less rufous ; calcaria 

 black, tibial and tarsal spines pale testaceous ; pile very short and sparse, 

 silvery. Wings hyaline, nervures fuscous, tegulas black ; radial cell very short, 

 the 1st, 3rd and 4th abscissae of radius subequal, the 2nd less than half the 

 length of the others ; the let and 2nd recurrent nervures are received 

 into the 2nd cubital cell before and after the middle respectively. 



$ . Similar, smaller ; anterior femora shghtlj^ emarginate. pygidium deeply 

 and roundly incised ; entirely black. 



Hah. — Deesa ; January, September, October. 



Length 9 7 mm. $ 5 mm. 



Nearest to T. striolaia (Cam,), but may be distinguished by the 2nd cubital 

 cell being much smaller on the radial nervure, 



Tachysphex ahlatus, n, sp. 



$. Head and thorax very finely and rugosely punctured, abdomen 

 minutely aciculate ; pygidial area impunctate. Clypeus almost transverse 

 anteriorly, incised in the middle ; antennse with 2nd and 3rd joints of the 

 flagellum subequal ; the distance apart of the eyes at vertex less than 2nd 

 joint of fligellum ; the apex of the median segment has traces of a furrow, 

 and is obscurely transversely striate. Front, vertex, and thorax black ; scape 

 of antennae, clypeus, mandibles, except their tips, the whole of the legs and 

 abdomen light red ; flagellum of antennse blackish ; most of the tibial and 

 tarsal spines pale testaceous, but a few are darker ; calcaria and claws dark 

 red, sometimes almost black. Pubescence and pile silvery, thick but not very 

 long on front and (horax, where it almost entirely hides the sculpturing. 

 Wings hyaline, netvures and tegulse rufo-testaceous ; the 1st and 3rd abscissje 

 of radius and the space bounded by the recurrent nervures are subequal : the 

 2nd abscissa of radius much shorter. 



Hah. — Deesa ; June, August, September, 



Length — 11-14 mm. 



Very near to T. eri/throgaster (Cam.) in general appearance, but the eyes are 

 much closer together at vertex. 



Tachysphex gujaraticus, n. sp. 



9. Head, mesonotum, and scutellum very closely and finely pundtured ; 

 median segment rather obscurely longitudinally striate ; abdomen minutely 

 aciculaie, pygidium smooth. Clypeus almost transverse anteriorly ; 2nd and 

 3rd joints of flagellum subequal ; the distance apart of the eyes at vertex is 

 rather less than the length of the 2nd and 3rd joints of the flagellum united ; 

 median segment truncate posteriorly, with an obscure furrow. Red ; the 

 flagellum of antennffi, front, vertex, and thorax, except the legs, black. 

 Pubescence silvery, thick but not very long ; it usually hides the sculpturing 

 of most of the head and thorax. Wings hyaline, nervures and tegulse 

 rufo-testaceous : 2nd and 3rd abscissae of radius and the space bounded 



