Mr. R. E. Turner on Fossorial Ilymenoptera. 365 



segment, and the less strongly punctured front. The two 

 species are very closely allied, and may possibly prove to be 

 mere local forms of one species. 



Dolichurus taprobance, Sm. 

 Dolichurus taprobance, Sm. Trans. Ent. Soc. Ijondon, p. 304 (1869). 2 . 



Smith's type is a female, not a male as stated by him in 

 the description. So far as I know, the male is unknown, 

 but Bingham appears to have seen a male differing from his 

 bipunctatus, unless, indeed, be has been misled by Smith. 



Hab. Ceylon ; Nicobar Isl. ; Sikkim. 



Dolichurus gilberti, sp. u. 



2 , Nigra ; segmeutis abdominalibus 4-6 rufis ; scgmento mediano 



postice lafceribus baud denticulatis. 

 Long. 9-10 mm. 



S . Omnino niger ; fronte longitudinaliter striata. 

 Long. 6 mm. 



? . Eyes separated from each other on the vertex by a 

 distance almost equal to the length of the second and third 

 joints of the flagellum combined ; the posterior ocelli very 

 close together, nearly twice as far from the eyes as from each 

 other. Front longitudinally striate-rugulose, the plate 

 above the base of the antennse smooth and shining ; the 

 space round the ocelli punctured ; the vertex shining, with 

 sparse and fine punctures. Clypeus with a longitudinal 

 carina not reaching the apex. Second joint of the ilagellum 

 almost half as long again as the third. Thorax shining, 

 finely punctured ; mesopleume rugulose. Median segment 

 broader than long, truncate posteriorly, the angles without 

 spines, the dorsal surface ti'ansversely striated, with five 

 longitudinal carinee, the two lateral carinse forming raised 

 margins and meeting at the apex ; the three middle carinse 

 not reaching the apex, the outer two parallel at the base, 

 curved and forming a broad enclosed area postei'iorly ; the 

 surface of the truncation coarsely rugulose. Abdomen 

 smooth and shining. Spines of the tibiaj testaceous. First 

 abscissa of the radius as long as the third, but a little 

 shorter than the second. 



cJ. The carina of the clypeus reaches the apex ; the 

 surface of the frontal plate is punctured, not smooth^ and 

 the carinse on each side of the median carina of the median 

 segment are convergent towards the apex, not parallel at the 

 base. The calcaria are whitish. 



