396 BULLETIN 15, UNITED STATES NATIONAL MUSEUM. 



iiotiim with two furrows; scutelluni with u deep fovea across the 

 base, crenulate at bottom; initUlht carina of iiietat hoi ax acutely promi- 

 nent at base. Lejjs pah\ brownish-yellow, \\ inys fusco hyaline, the 

 venation brown, the sti<;ninl ab<nit as lonj; ;is the marjiinal vein, short; 

 basal vein indistinct. Abdona-n black, smooth, shiniu}', tlu' petiole 2i 

 times as htu*i as tliick, jojirsely tinted, imbesccnt beneath. 



9 . Lcnjjth, 3"*"', Apjrees well with the S , except the antenna' are 

 gradually incrassate<l toward tips, tiagellar Joints 1 to(i jiradiially short- 

 ening, the basal Joints rather long, the ttrst about as long, luit not so 

 thick, as the i)edicel. Joints 7 to !> very little longer than thick, the last 

 fusiform, stouter and a little longer tlian the two preceding Joints 

 united. 



Habitat. — Carolina and l)istri<t of Columbia. 



Type <? in lierlin Museum, the 9 in Coll. Ashm. 



Described from a single S specimen in lierlin Museum, labeled as 

 having come from Dr. Zimmermann, and 2 9 specimens in my collection 

 taken near Washington. 



SPILOMICRUS Westwooil. 



riiil. Mug., I, 1.. 120 (18H2) ; IV.rstcr Hyiii. Stud., ii. p. 123. 



(Type S. stit/maticaHs Westw.) 



Head transverse or subglobose, the occiput rounded, the cheeks 

 slightly jmbescent; ocelli 3 triangularly arranged; eyes broadly oval. 



Antenna* inserted on a frontal prominence, 13 jointed in both sexes, 

 in 9 iucrassated toward tips, submoniliform, the scape* subdavate ex- 

 tending beyond the ocelli; pedicel stouter and longer than the tirst 

 funiclar Joint; in S filiform long, covered with a short, dense pubes- 

 cence, the i)edicel small, rounded, the second funiclar Joint usually as 

 long or longer than the first, the first slightly emarginate at base, the 

 joints beyond long, cylindrical. . 



Maxillary palpi H Jointed. 



Mandibles short, bifid. 



Thorax long ovoid, the prothorax visible from above, more or less 

 woolly, especially at the sides; mesonotum with two furrows often ab- 

 breviated anteriorly, seldom entirely wanting; scutellum with two 

 oblong fovejB at base, metathorax short, emarginate posteriorly, tri- 

 dentate. 



Front wings pubescent, ciliated, the submarginal vein terminating 

 in a punctiform marginal vein before the middle of the wing, the costal 

 cell distinct, closed, the basal vein usually quite distinct; the short 

 stigmal vein often has a backward-directed branch. 



Abdomen oblong oval, composed of seven segments in the 9 and eight 

 iu the S , the petiole long, fluted, its apex covered by the projecting 

 base of the second segment, the second segment occupying most of the 

 surface and without sulci at base. 



