Manchester Memoirs, Vol. xli. (1897), No. 13. 19 



shagreened and with four irregular longitudinal keels; the 

 oblique apex shagreened. Propleurae shining ; the meso- 

 pleurae shining above, shagreened below ; the top pro- 

 jecting, oblique ; a keel runs down the base from the 

 tubercles ; the metapleurse closely longitudinally strio- 

 lated. Legs shining, sparsely haired ; the base of the 

 hind spurs thickly covered with stiff pale hairs. Wings 

 clear hyaline ; the nervures blackish ; the first transverse 

 cubital is sharply elbowed from a little below the middle 

 towards the apex of the cellule, the second straight, the 

 third curved roundly toward the base of the cellule ; the 

 first recurrent nervure is received shortly beyond the 

 middle of the cellule, the second near the basal third. 



SPHEGIDiE. 



DlODONTUS STRIOLATUS, Sp. fWV. (PL l6, f. 3). 



Niger, mandibulis, tegidis, geniculis, tibiis tarsisque 

 flavis ; alis hyalinis, nervis stigmatcque fitscis. 6. Long, 

 fere 5 mm. 



Hob. Lahore (Rothney). 



Antennae entirely black, almost bare ; the apex of the 

 scape fuscous. Head shining, the front and vertex with 

 fine, distinctly-separated punctures ; mandibles yellow, 

 the extreme base black, the teeth piceous-black; the palpi 

 yellow; the clypeus projecting, roundly and deeply incised 

 in the middle. Thorax shining, faintly aciculated above ; 

 the propleurse with stout, distinctly separated striae ; the 

 apical half of the mesopleurae closely longitudinally 

 striated, the striations becoming closer together at the 

 apex ; the metapleurae, except at the base beneath, more 

 strongly and irregularly striolated. The apex of the four 

 front femora, the tibiae and tarsi, testaceous ; the middle 

 tibiae infuscated behind; the hinder tibiae blackish ; 

 the hinder tarsi infuscated. Wings short, not reaching 



