6 PROCEEDINGS OF THE NATIONAL MUSEUM vol.69 



furrows wanting; mesopleural furrow represented by a shallow pol- 

 ished impression; propodeum rounded; its entire apical margin 

 sharply carinate and conspicuously elevated ; propodeal spiracles small, 

 nearly circular; wings hyaline; first cubital and first discoidal 

 cells completely separated; second cubital cell quadrate, the second 

 abscissa of radius alwa)7's distinct and usually longer than the first; 

 legs moderately long; inner spur of hind tibiae a little less than half 

 the metatarsus; tarsal claws with a tooth at base; abdomen broadly 

 sessile, depressed, rather slender, the middle segments only slightly 

 widened; ovipositor prominent; the sheaths exceptionally broad, 

 and densely hairy. 



Only one species has been found in our fauna. 



EARINUS LIMITARIS (Say) 



Bassus limitaris Say, Boston Journ. Nat. Hist., vol. 1, p. 250. 

 Earinus limitaris Cbesson, Canad. Ent., vol. 5, 1873, p. 54. 



Type. — Lost. 



The following characters added to the foregoing generic description 

 will distinguish this species: Face usually rather evenly punctate, 

 slightly elevated down the median line; temples moderately broad 

 but receding; cheeks bulging a little; ocell-ocular line not or only 

 slightly longer than twice the diameter of an ocellus and hardly as 

 long as postocellar line; the ocellar area a little elevated above the 

 rest of the vertex; antennae usually 35 to 40 segmented, the flagellum 

 tapering somewhat to the apex; all the segments longer than broad; 

 mesoscutum weakly punctate; propodeum mostly smooth, usually 

 with two more or less distinct median carinae that diverge slightly 

 behind; pleura and propodeum covered with abundant, long, grayish 

 pile; radius usually arising distinctly before middle of stigma, but 

 varying somewhat in this respect, occasionally coming from the 

 middle of stigma; second cubital cell usually about as long as high, 

 with the second abscissa of radius longer than the first and the second 

 intercubitus angled outwardly; but there is considerable variation in 

 this, the second abscissa of radius being sometimes no longer than 

 the first and the second intercubitus not always angled; nervulus 

 interstitial with basal vein, or nearly; first abscissa of mediella longer 

 than the second; nervellus angled and emitting a distinct discoidella; 

 anterior femora somewhat swollen ; posterior femora, tibiae, and tarsi 

 rather long and slender; abdomen flat above, nearly parallel-sided, 

 narrowed only a little ])asally and apically; first tergite slightly 

 roughened, usually with two prominent dorsal keels that converge 

 slightly behind; ovipositor sheaths very broad, strongly hairy and 

 about as long as the abdomen. Body entirely black; wings hyaline 

 or very faintly dusky; legs, including coxae, testaceous; the anterior 

 coxae sometimes blackish at base; the posterior tibiae usually yellow- 



