240 ME. P. CAMEEOK ON [Mar. 19, 



in length above ; the 1st recurrent nervure is received near the base 

 of the apical fourth, the 2nd near the apex of the basal third. 

 The hinder tibiae are sparsely, the tarsi are more thickly spinose ; 

 claws bifid, the inner tooth "stout. The apex of the abdomen is 

 thickly covered with black hairs ; the last segment is roundly and 

 broadly incised below ; above, the incision is not so wide, but is 

 equally distinct. 



It is not clear if this is a Salius or a Pomjnlus ; there seems to 

 be a transverse furrow on the second ventral segment. It is not 

 unlike a Pompilus of the peregrinus-gvow^. • 



Sphegid^. 

 Sphex coneeateb Kohl. 



Sphex conf rater Kohl, Ann. k.-k. Hofmus. Wien, v. pp. 414, 106- 

 Described from New Britain. A. handsome species, easily 



known by its shining black abdomen, with the apical three segments 



bright red. 



Sphex umbeosus Christ. 



A single male, which I am disposed to consider identical with 

 this variable and widely spread species. The hair on the thorax 

 is dense and pale golden. 



Sphex (Isodonta) insiila.eis, sp. no v. 



Niger, dense nigro-pilosus ; mmidihulis rxifo-piceis ; alis fusco- 



violaceis. S • 

 Long. 10 mm. 



Antennae black ; the flagellum covered with a pale down ; the 

 3rd joint is fully longer than the basal two joints united and dis- 

 tinctly longer than the 4th. The eyes distinctly converge at the top ; 

 the hinder ocelli are separated from each other by a distinctly less 

 distance than they are from the eyes. The hair is long, black, 

 and thick ; the front and vertex are also covered with depressed 

 silvery pubescence ; the clypeus is keeled down the centre. Man- 

 dibles tridentate ; the apical tooth is somewhat triangular, broad 

 at the base, becoming narrowed toM'ards the apex ; the other two 

 teeth are short, of equal size, and do not project much. The thorax 

 is thickly covered with long black hair ; the meson otum is smooth 

 and shining, as is also the scutellum ; the post-scutellum is more 

 opaque ; neither is furrowed down the centre. Median segment 

 opaque, minutely, obscurely transversely striated in the middle ; 

 it can hardly be said to be furrowed down the centre, but there 

 is an obscure fovea on the apex of the basal part. Wings highly 

 iridescent ; dark fuscous- violaceous, the costa, stigma, and nervures 

 black ; the space bounded by the 3rd and 2nd transverse cubital 

 nervures is one-third of the length of that bounded by the 2nd 

 and 1st and not quite one-half more than that bounded by the 

 2ad and the 3rd recurrent nervures ; the 1st recurrent nervure 

 is received about the same distance from the 2nd transverse cubital 



