236 HTMENOPTEEA. 



example of E. julii for comparison, I am unable to offer an opinion as to this. The 

 base of the abdomen is truncated, and is keeled at the top, and formed as it is in some 

 species of Odynerus. The claws are sub-bifid. The chief difference between Paratiphia 

 and Tiphia is that the former has three transverse cubital nervures ; but the first is not 

 complete, it being broken off before reaching the cubital nervure. Paratiphia has the 

 radial nervure open at the apex as in Tiphia. 



3. Epomidiopteron elegantulum. 



Epomidiopteron elegantulum, Smith, Journ. Ent. i. p. 79 \ 

 Hab. Mexico (Mm. Brit. 1 ). 



4. Epomidiopteron nigrum. 



Nigrum, fulvo-hirtum ; alia fere hyalinis. § . 

 Long. 11 millim. 



Hal. Mexico, Xucumanatlan in Guerrero 7000 feet (H. H. Smith). 



Head coarsely punctured, the punctures confluent, covered thickly with long, pale 

 fulvous hair ; the clypeus not projecting in the middle, the apex rounded, covered with 

 fulvous hair ; the labrum rounded at the apex, projecting ; the mandibles black, 

 sparsely covered in the middle with fulvous hair. The antennse short and thick, the 

 scape punctured, and bearing long white hair; the flagellum covered with a pale 

 microscopic down; the third joint a little shorter than the fourth. The pro- and 

 mesonotum thickly covered with fulvous pubescence, coarsely and uniformly punctured, 

 except an impunctate space in the centre of the mesonotum ; the pro- and metapleurse 

 striolate; the mesopleuree strongly punctured, and covered with long, pale fulvous 

 hair. The median segment finely rugose ; the top striolate at the sides at the apex ; 

 the central keel sinuate, the lateral keels approximating at the apex . Abdomen at the 

 base finely, towards the apex more strongly and closely, punctured, shining ; the suture 

 at the base of the second segment bulging out in the middle ; the basal segment 

 truncated behind, the keel on the top slight but distinct ; the apical segment densely 

 covered with long, fulvous hair, apparently strongly punctured ; the ventral surface 

 punctured, the segments at the apex fringed with long, pale fulvous hair. The tibiae 

 and tarsi densely covered with white pubescence, the tibise on the outer side with some 

 stout black spines. The third cubital cellule at the top longer than at the bottom, 

 shorter than the first and second cellules united ; the first recurrent nervure received 

 shortly in front of the middle, the second nervure in the apical fourth of the cellule ; 

 the stigma black. 



5. Epomidiopteron smithi. 



Long. 9 millim. 



Hab. Mexico, Acapulco in Guerrero (H. H. Smith). 



