226 MR. p. OAMEEON ON [Mar. 19, 



The four front legs are rufous, with the coxse darker ; the hinder 

 black, except the apical two-thirds of the tibise and the tarsi, 

 which are rufous at the base, blackish towards the apex ; the 

 hinder coxse are, as usual, irregularly striated ; the two teeth on 

 the hinder femora are acute; the apical one is longer and narrower 

 than the hinder. Wings fuscous-violaceous ; the nervures and 

 stigma are black. The petiole is longer than the rest of the 

 abdomen united ; it is opaque and is closely striated. The 

 ovipositor is annulated with white and is not quite so long as the 

 body. The recurrent nervure in the front wings is interstitial. 



BuJlCONIBM. 



Beacon diokes, sp. nov. 



Niger; ore,mcmiUbulis, thorace pedibusque anteriorihus rujts ; alls 

 nigro-violaceis. $ . 



Long. 8; terebra 1'5 mm. 



Antennse stouter than usual ; thickly covered with short, stiff, 

 black pubescence. Head black, smooth and shining ; the inner 

 orbits narrowly, the apes of the clypeus, the space between the 

 eyes and the mandibles, and the mandibles at the base rufous ; 

 the apical half of the mandibles black. The frontal fui'row is 

 wide and deep ; its sides oblique, and it becomes gradually narrowed 

 towards the apex. Except above the antennse, the head is thickly 

 covered with long, soft, white hair ; the face bears also longer 

 fuscous hair ; the base of the mandibles thickly covered with white 

 pubescence. Thorax smooth and shining, almost bare. Abdomen 

 smooth, bare, and shining; the apices of the segments are narrowly 

 lined with white ; the dorsal surface is devoid of transverse or 

 oblique furrows. The four front legs are of a paler rufous colour 

 than the thorax ; the hinder are black, except the apices of femora, 

 which are dull rufous ; their tarsi on the under surface are thickly 

 covered with rufous pubescence ; the calcaria pale. Wings large, 

 uniformly dark violaceous ; the stigma and nervures are deep 

 black. 



Cbatobbacon, gen. nov. 



Apex of scape of antennae projecting into a short sharp tooth. 

 Head cubital, largely developed behind the eyes ; the occiput 

 roundly incised in the middle, its margin placed very low down 

 and margined. Eyes oval, widely distant from the base of the 

 mandibles. Oral depression large. Mandibles becoming gradually 

 narrowed towards the apex and without a subapical tooth. In 

 front the head is transverse. Thorax more largely developed in 

 front than usual, so that the fore wings are placed almost in the 

 middle. Median segment largely hollowed in the middle above. 

 Legs stout, of moderate length ; the fore tarsi twice the length of 

 their tibiae. The 2nd and 3rd abscissae of the radius are almost 

 equal in length ; the first is very short, not half the length of the 

 third transverse cubital nervure ; the transverse basal nervure is 

 interstitial; the recurrent nervure is intex'stitial. Hind wings 



