Cameron. — On Hymenoptera. 109 ; 



tured ; the punctures on the clypeus are large and more 

 widely separated than they are on the face. Mandibles 

 rufous before the middle ; palpi testaceous, black at the base. 

 Mesonotum closely but not very strongly punctured ; the 

 middle of the scutellum is broadly yellow, its apex minutely 

 striated. Median segment coarsely, closely, rugosely punc- 

 tured ; the posterior median area almost square ; the apex 

 without central keels. Pleurae closely and distinctly punc- 

 tured. Sternum less strongly punctured than the pleurae. 

 Legs pale-ferruginous ; the coxae and trochanters black ; the 

 apex of the hinder femora slightly, of the hinder tibiae more 

 widely, blackish ; the hinder tarsi slightly fuscous. The 

 areolet at the top is as wide as the space bounded by the 

 recurrent and the second transverse cubital nervures ; the 

 recurrent is received shortly beyond the middle. Abdomen 

 black ; the extreme apex of the petiole and the second and 

 third segments ferruginous ; gastracoeli deep, smooth. 



Amblyteles hudsoni, sp. nov. 



Ferrugineo ; capite thoraceque nigro flavoque maculatis ; 

 coxis femoribusque anterioribus flavis, posticis nigro-macu- 

 latis ; alis hyalinis, stigmate nervisque fuscis. $ . 



Long., 8 mm. 



Antennae fuscous, paler beneath ; the scape yellowish- 

 testaceous, marked with black above. Head rufous ; the 

 inner and lower outer orbits, the face, and clypeus yellow ; 

 the ocellar region and the front broadly in the middle black ; 

 the vertex closely punctured ; the depressed front closely 

 transversely striated. Mandibles yellow, the teeth black. 

 Palpi dark-yellow. Thorax, the edge of the pronotum, the 

 tegulse, tubercles, the lower half of the pleurae, and the ster- 

 num lemon-yellow ; the lower part of the propleurae and of 

 the metapleurae, the mesopleurae under the wings, the base 

 and the lower part of the metapleurae broadly, and the part 

 at the sides of the scutellums black. Mesonotum closely and 

 distinctly punctured. Scutellum sparsely punctured, and 

 with a yellowish tint. Post-scutellum smooth. Median 

 segment shagreened ; the depressed base black ; supramedian 

 area distant from the base, large, twice longer than broad,, 

 rounded at the top. Petiole smooth, shining, slightly tinted 

 with yellow. The four anterior coxae and trochanters yellow ;. 

 the hinder coxae broadly marked with black. Gastracoeli 

 shallow, depressed at the apex. 



This species may form the type of a new genus ; but, in 

 the absence of a female, I have not ventured to name it. 

 Underneath I give its generic characters. 



Areolet large, broad, five-angled. Abdomen with seven 

 dorsal segments, the apical one bluntly rounded ; ventral 



