144 PROCEEDINGS OF THE NATIONAL MUSEUM. voi.xxiii. 



To my ej^es the two groups are quite distinct and have little in 

 common, the resemblance to each other being merely superficial. 



Ten genera lielong to this tribe, among which is the genus Stenoph- 

 asmiirS Smith, placed by some authorities with the StephanidfP. I have 

 not seen the type of this genus, however, and what American hyme- 

 nopterologist take for it may be quite a distinct genus. Our species, 

 placed in it, are easily confused with the genus Sjxithius on account 

 of the petiolate abdomen and the similarity of venation. 



TABLE <)!•' liEXERA. 



Second abdominal segment separated from the third by a strong transverse furrow. 2 

 Second abdominal segment blending with the third, not separated by a strong trans- 

 verse furrow 3 



2. Hind coxae armed with a strong tooth or spine above. 



(1098) Odoiitobracon Caineron=Syngastcr Brulle (part.) 

 Hind coxiie normal, unarmed. 



Recurrent nervure received by thefin^t cubital cell. 



(1099) Iledysonnts Forster l=^Zombms Marshall. 

 Recurrent nervure received by the second cubital cell. 



(1100) Rhaconotus Reinhard. 



3. Basal joint of the hind tarsi not longer than the four following joints united; 



antenna? very long 4 



Basal joint of the hind ta,rsi about twice as long as the four following jt)ints 

 united; antennte very short ( 1101 ) Histeromerus "Wesmael. 



4. Recurrent nervure received by the first cubital cell, or interstitial with the first 



transverse cubitus 5 



Recurrent nervure received by the second cubital cell. 



Second and third abscissae of the radius and thecubitus abnorjnally thickened; 



hind wings without an anal cell (1102) Caenopachijs Forster. 



Second and third abscissse of the radius normal, not thickened; hind wings 



with an anal cell (1103) Doryctomorpha Ashmead, new genus. 



(Type, Dorijciomorjiha antipoda Ashmead, manuscript. ) 



5. Alxlominal segments iriiliout arcuate punctate lines, at the most with the second 



segment only with oblique impressed lines 6 



All abdominal segments ^rit)l punctate, arcuate lines; recurrent nervure inter- 

 stitial with the first transverse cubitus. 



(1104) i?r(f/)yof'»/or Kriochbaumer. 



6. Second abdominal segment vithout deep obli<iue impressed lines; hind wings in 



male vjlthout a stigma 7 



Second abdominal segment v:ith two distinct oblique impressions or lines; hind 

 wings in male usually vith a stigma, rarely without; recurrent nervure 



not interstitial (1105) Glyptodoryctes Ashmead, new genus. 



(Type,- Ileterospilus carysc Ashmead, manuscript.) 



7. Submedian cell not longer than the median; abdomen distinctly petiolate, the 



first segment long and slender 8 



Submedian cell longer than the median; abdomen sessile. 



Metathorax more or less distinctly areolated, or at least always with a com- 

 plete areola or basal and lateral areas; first joint of the fiagellum dis- 

 tinctly longer than the second; basal abdominal segment striate or 

 sculptured, the second and following usually smooth, polished, rarely 

 with the second striate at base (1106) Ischiogonm Wesmael. 



