iRT, 16 ^VASPS OF THE SUBFAMILY BRACONINAE MUESEBECK 13 



keels or elevations; hypopygium large, but not surpassing the apex 

 of last dorsal abdominal segment ; ovipositor sheaths not longer than 

 the abdomen. 



The host relationslaips of none of our species are known. 



KEY TO THE THREE KNOWN NEASCTIC SPECIES OF AGATHIRSIA 



1. Head and thorax testaceous, with only the prepectus and coxal cavities some- 



times black; malar space more than half as long as the eye-height; poste- 

 rior margin of mesosternum with a distinct backwardly-projecting lobe on 

 either side of the mesosulcus; posterior metatarsus only slightly incrassate; 

 face and propodeum with short scattered pubescence; ovipositor sheaths 



about as long as the abdomen 1. testacea, new species. 



Head black; thorax except mesonotum and part of propleura, black; malar 

 space not more than half as long as the eyes; posterior margin of meso- 

 sternum without a distinct lobe either side of the mesosulcus; posterior 

 metatarsus more strongly incrassate; face and propodeum with long seri- 

 ceous pile; ovipositor sheaths distinctly shorter than the abdomen — . 2. 



2. Legs testaceous, with the anterior and middle coxae, and sometimes the pos- 



terior coxae, black; abdomen ferruginous on the basal half, completely 



black on the apical half 2. nigricauda (Viereck). 



All coxae and trochanters, the posterior femora and more or less of the ante- 

 rior and middle femora, black; abdomen yellowish-ferruginous, varied with 

 black; first abdominal tergite yellowish with a large black spot on apical 

 half; extreme apex of abdomen above, ferruginous. 



3. thoracica (Cresson). 



1. AGATHIRSIA TESTACEA, new species 



Female. — Length 8 mm. Head transverse; temples bulging some- 

 what, but not broad; face much broader than long, slightly convex, 

 punctate; clypeus large, broader at apex than distance from anten- 

 nal foramina to clypeus: labrum large; labium only slightly extended; 

 malar space longer than half the eye height and longer than the first 

 segment of antennal flagellum; eyes long oval; ocell-ocular line 

 nearly four times the diameter of an ocellus; antennae stout, short, 

 27-segmented in type, none of the flagellar segments beyond the first 

 twice as long as broad, the segments of the apical third of flagellum 

 mostly broader than long; parapsidal furrows impressed, finely fove- 

 olate; middle mesonotal lobe with a low median longitudinal eleva- 

 tion; the lobes only slightly convex; furrow in front of scutellum 

 broad, deep, divided into several large pits; scutellum rather large, 

 convex; propleura mostly ruguloso-punctate; mesopleural furrow 

 coarsely foveolate; propodeum more than twice as broad as long, 

 coarsely rugose; metapleura mostly ruguloso-punctate; posterior 

 margin of mesosternum with a distinct backwardly projecting lobe 

 on either side of the mesosulcus; posterior coxae stout, punctate; 

 posterior tibiae thickened at apex and with some rather indistinct. 



