94 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



joints very little longer than thick. Wings clear hyaline, stigma 

 brown, veins pale or hyaline. Legs pale rufous, the posterior coxse 

 blackish basally ; tlie pinchers of the anterior feet very small. 



Habitat. — Ottawii, Canada. 



Type in Coll. Ashniead. 



This species is described from a single specimen received from W. 

 H.Harrington, and comes nearest to the European C.fmcicornis Dalm. 



ANTEON Jurine. 

 Hyiuu., p. 302 (1807); Forst., Ilyuiii. Stud., ii, p. 93. 

 Heterolepis Nees, Mou., ii, p. 271. 



(Type*!. Jnrineanns Latr. ) 



Head transverse, the vertex wide, convex or subconvex, the occiput 

 slightly concave, margined; ocelli in a triangle; eyes ovate. 



Antennie inserted just above the clypeus, 10-jointed; in the 9 sub- 

 clavate, the first flagellar joint hardly one-third the lengtii of the scape, 

 the following joints short, the terminal joints thickened gradually; 

 in $ filiform, pilose, or pubescent, the first flagellar as long or slightly 

 longer than the scape, the folhnving joints all lengthened, cylindrical. 



Maxillary palpi 4:-jointed; labial palpi very short, 2-jointed. 



Mandibles truncate at tips, 3-dentate, the teeth acute, the outer 

 slightly longer than the others. 



Thorax subovate, the prothorax short, narrowed and margined an- 

 teriorly, the sides oblique, impressed; mesonotum usually smooth and 

 without distinct furrows; metathorax at least as long as wide, rugose, 

 rounded posteriorly. 



Front wings with a large ovate stigma, two basal cells and a stigmal 

 vein ; other cells obliterated. 



Abdomen ovate or oblong-oval, subpetiolate, the second segment the 

 largest, the others gradually subequal. 



Legs moderate, the femora swollen or ob<;lavate, the anterior taisi 

 in 9 chelate. 



A genus usually confused with Ghelof/ynns and Bryhius, but quite 

 distinct. It has not a i)article of resemblance to Dryhius, except in the 

 anterior tarsi being chelate. The shape of the head, the short collar, 

 and ovate stigma in front wing, readily sei)arate it from that genus. 

 With Cheloffi/nus, however, there is a closer resemblance, but the prono- 

 tum is always nnich short<'r, often only visible from above as a slight 

 collar, while tlie maxillary palpi are 4-jointed. In Chelof/i/nns the pro- 

 notum is always as long, or nearly as long, as the mesonotum, while 

 the maxillary palpi are 5-jointed. 



The species are numerous, although nothing positively is known of 

 their habits. 



The following table will atiord assistance in distinguishing our 

 species : 



