MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 397 



Legs claviite, pilose, the tarsi long, sleuder, the posterior tarsi with 

 the basal joint almost twice as long as the second. 



llesemhleshoth P((r<(niesms and Banalys; from the former it is distin- 

 guished by the distinct basal nervure, usually a less distinctly pointed 

 abdomen and the structure of the second segment, wiiich overla|)S the 

 apex of the petiole and is without sulci at base, while the distinct 

 mesonotal furrows, longer submarginal vein, and the wholly different 

 antennae in the S separate it fi-om the latter. 



TABLE OF 8PECIES. 



Scuteilum with 2 fovea' at base. 



Scapulie not separated 2 



Scapuliv separated posteriorly. 

 9. Five terminal joints of antenna' black, rest of antenuto browuisli-yellow 

 or rufons. 

 Scntellum with a row of 6 large punctures at apex, the shoulders with a 



grooved line S. akmatus Ashm. 



Scuteilum with a row of 6 small punctures at apex, the shoulders without 



a grooved line S. atiiiclavus, sp. nov. 



(J. Antenme and legs brownish-yellow, the Uagellar joints long, nearly 

 equal, the first two a little longer, about five times as long as thick 



S. FLAVICORNIS, sp. UOV. 



2. Coxa" and femora black. ^ 



^ . Antenme black, first three flagellar joints about equal, the second excised at 

 base, about four times as long as thick, the following three times as 



long as thick S. atkopetiolatus Ashm. 



? S. FOV'EATUS Prov. 

 ? S. LONGICOBNIS Prov. 

 Spilomicrus armatus, sp. nov. 



(PI. XVI, Fig. 7, 9 .) 



9 , Length, 3.1" '". Polished black, impunctured, with long, sparse 

 hairs; a tuft of pubescence on cheeks behind, collar at sides and peti- 

 ole beneath, griseous. Antenme 13-jointed, brownish-yellow, the 5 ter- 

 minal joints black or fuscous; the tlagellum is about 2^ times as long 

 as the scape, thickened toward tip, the joints 6 to 10 quadrate, the last 

 oblong. Thorax with two furrows, the scapuhe with a long grooved 

 furrow; scuteilum rather flat, with 2 large foveai at base, grooved lines 

 at sides, at apex truncate and with a row of large punctures; meta- 

 thorax witii an acute, triangular central carina, the sides pubescent. 

 The mesopectus has 3 or 1 distinct strijE just above the middle coxse. 

 Wings subhyaliue, the stigma rufo-piceous, triangular; basal nervure 

 wanting, indicated only by a wrinkle in the wing surface. Legs broAvn- 

 ish-yellow, the first joint of trochanters long, clavate. Abdomen ob- 

 long-oval, polished, black, the i>etiole a little more than twice as long 

 as thick, strongly fluted, with long, sparse pubescence above and woolly 

 beneath, the wool extending on to the second ventral segment. 



Habitat. — District of Columbia. 



Type in Coll. Ashmead. 



