MONOGEAPH OF THE NORTH AMERICAN PROCTOTRYPID^E. 193 



for two-tliirds its leugtli, coarsely striated, tUe third with a row of very 

 short stria? at extreme base. 



Habitat. — Jacksonville, Fla. 



Type ill Coll. Ashiiiead. 



Described from a single specimen. 



Piosacantha gracilicornis, sp. nov. 



9. Length, 1.8"". Black; head and scntellnm smooth, polished; 

 thorax finely, closely pnnctate, opaque; legs pale browni.sh-yello\v, the 

 coxie black basally. Antenna" 12-jointed, brown-black, the scape pale 

 at base, long and slender, about as long as the body; the scape extends 

 slightly beyond the ocelli, slender, a little thickened at the middle; 

 liedicel cyathiform; first and second fnniclar joints long, equal, about 

 five t'lnes as long as thick, the third half the length of second ; the fourth 

 still shorter, a little longer than thick; club O-jointed, very slender, and 

 about as long as the the first and second funiclar joints together, the 

 joints only slightly wider tlian long. Wings hyaline, pubescent, the 

 venation brown. Abdomen a little longer than the head and thorax 

 together, the petiole longer than thick, finely pubescent and coarsely 

 striated, the second segment coarsely striate at base only, the third 

 with some fine longitudinal aciculations basally. 



Habitat. — Carolina. 



Type in Berlin Museum. 



Described from a single specimen, labeled simply "Carolina, Zimmer- 

 mann." 



Prosacaiitha marylandica, sp. iiov. 



$ 9. Length, 2""'. Black; thorax and scutellum rugoso-punctate; 

 head smooth with some sjiarse punctures and some broad but not deep 

 stria^ on lower part of the face. Mandibles pale rufous. AnteuujB 

 black, the scape basally and the pedicel at apex yellowish; the first 

 funiclar joint is twice the length of the pedicel and one-third longer 

 than the second; third and fourth joints small, transverse. Legs, 

 including coxtc, brownish-yellow. Post-scutellar spine large, trian- 

 gular, nearly horizontal and projecting over the base of the scutellum. 

 Wings subhyaline, the marginal vein at least six times as long as the 

 stigmal. Abdomen oblong-oval, longitudinally striated, the fourth 

 and following segments and the venter, punctate. 



In the male the post-scutellar spine is not so decumbent, and does 

 not project over the base of the abdomen ; the third abdominal segment 

 is smoother and shows only a few longitudinal strije on the disk; while 

 the antennte are long, filiform, the first flagellar joint the longest, about 

 five times as long as thick, the following a little shorter. 



Habitat.— Oakland, Md. 



Types in Coll. Ashmead. 



Described from ;^pecimens received from Mr. E. A. Sciiwarz. 

 21899— No. 45 13 



