390 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



short, roniKlcd before, with two sliort, <ibl)r«'viat<Ml impressed lines be- 

 hind, not extendinji torwiird to the n)iddle of the mes<tnotuni ; scuteUum 

 with a transverse fovea at base; nietanotuni triearinate, tlie truneature 

 bonnded by a carina alwve, slijjfhtly produced at the lateral an}:fles. 

 Wings hyaline, fringed, slightly eniarginated at apex; stignial nervure 

 oblique, three times as long as the short marginal; basal nervure sub- 

 obsolete. Abdomen oblong-oval, truncate at apex, judished, shining; 

 the petiole a little huiger than thick, finely striated; the extrehie base 

 of second segment with some strias 



The S agrees well with the 9 except the mesonotal furrows are a 

 little longer, the head larger, antenne filiform, the second tiagellar joint 

 a little longer and stouter than the others, the others about three times 

 as long as thick, while the wing venation is darker, more distinct, the 

 stiginal vein shorter, with a slight backward directed brauch from its tip. 



Habitat. — District of (Columbia. 



Types iu Coll. Ashmead. 



Hemilexis mellipetiolata Ashm. 

 Ciin. Eut., XIX, p. 19G; Cros. Syn. Hym.. 251. 



9 , Length, 1 ' ". Polished black, impunctured ; scape, legs, aud ab- 

 dominal i)etiole, honey-yellow; tlagelluni rust-brown. Antenna; 13- 

 jointed, long, gradually incrassated toward tips; flagellar joints 1 to 5 

 subcylindric, the following submoniliforni. Thorax without furrows, 

 scutellum foveated at base; metapleura pubescent. Wings hyaline, 

 strongly fringed, the apex slightly emarginated, the stigma and ner- 

 vures pale yellow, the stiginal nervure much longer than the short 

 stigma. Abdomen oval, truncate at apex, black, shining, the petiole 

 long, yellow, about three times as long as thick, finely striated. 



Habitat. — Jacksonville, Fla. 



Tn)e in Coll. Ashmead. 



Quite distinct from the other species in the long yellow petiole, 

 absence of mesonotal furrows, pubescent metapleura and in the relative 

 length of antennal joints. 



Hetnilexis californica, Rp. nov. < 



S. Length, Lo""'". Polished black, impunctate; antennfp brown, the 

 scape and legs yellowish, the hind cox.i^ and thickened parts of 

 the femora and tibi.'e fuscous or piceous. Head more transverse than 

 iu the preceding species. Mandibles rufous. Antenna; 13-jointed, 

 filiform, the first flagellar joint long, three times as long as the pedicel, 

 cylindrical, the second stouter and slightly curved and dilated toward 

 apex, the following joints still shorter, loosely joined, from an elliptic- 

 oval to moniliform, the last ovate. Thorax with the parapsidal furrows 

 wanting anteriorly; scutellum with a deep fovea all across the base, 

 metapleura finely rugose. Wings hyaline, fringed, the nervurcs pale 



