216 Mr. E. Saunders' Synopsis of British 



of angular dilatation on its upper side. The thorax and 

 the nodes of the petiole are less rugose. The colour of 

 the insect is testaceous, as in rngiiwdis and Uevinodis, 

 from which the geniculated scape distinguish it at 

 once. Wings in the $ dusky to beyond the submarginal 

 cell. 



Hah. — Very abundant almost everywhere. 



5. lohicornis, Nyl. Adn. Mon. Form. Bor. Eur. p. 932, 

 fig. Smith Brit. Foss. Hym. pi. i. fig. 12 (antenna). 



Like the other species of the genus in general 

 appearance. 



(? differs from seahruiodis in the long scajDe of the 

 antennae, which is half as long as the flagellum, and from 

 the other species in the scape being angularly bent at 

 the base. 



2 and ^ are of the same dark colour as snlcinodis, 

 but have the scape of the antennfe geniculated as in 

 scahrinodis, but not flattened at the bend, the bend 

 bearing a distinct spine. 



Hah. — Bare. Chobham, South Shields, Whitley, Scot- 

 land, &c. 



Stenamma, Westw. (PL VII. fig. 7). 



Intr. Class. Ins. vol. ii. p. 226. 



This genus may be known from Mi/rmica by having 

 only three joints to the labial palpi and four to the 

 maxillary, and by the 5 and 5 only having eleven 

 joints to the antennae. The smooth polished sur- 

 face of the head and thorax and the spine under 

 the second node of the petiole in the ? and ^ , as 

 well as the keeled clypeus of the ^ , will distinguish it 

 from all its allies. 



1. Westwoodii, Westw. Intr. Class. Ins, ii. p. 226, 

 pi. Ixxxvi. fig. 11. 



3" brownish black ; antennae, mandibles, sides of pro- 

 thorax, and legs pale, slightly hairy ; head and thorax 

 dull, and very finely rugose ; clypeus with a central keel ; 

 abdomen smooth and shining ; wings milk}^ white ; ante- 

 rior wings with the marginal cell incomplete, and with 

 one submarginal and one discoidal cell. Length 5 mill. 



? and ^ testaceous, smooth, polished, and shining, 

 with short scattered hairs ; antennae rather densely 



