132 PROCEEDINGS OF THE NATIONAL MUSEUM. vul.xxiii. 



Second abdominal segment separated from \\\v third by a deep transverse 

 furrow; ovipositor always long or prominently exserted. 



(1013) Pseudapanteh's Ashmead. 

 Metanotnm areolated or at least with a distinct areola or median area; oviposi- 

 tor always long or prominently exserted.- (1014) Urogaster Ashmead. 



12. Metathorax uith a distinct median longitudinal carina (rarely nearly obliterated 



by the coarseness of the sculpture), areolated, or at least with a distinct 



areola or median area 18 



Metathorax tvHhout a trace of a median carina or an areola, smooth alutaceous 

 or shagreened. (see p. 131 ) (1111) ProtajMindies: Ashmead. 



13. Metathorax with a median carina longitudinal carina (rarely nearly obliterated 



by the coarseness of the scul{)ture). 



Ovipositor hidden, never prominently exserted (1012) Apmiteh's Forster. 



Ovipositor long or always prominently exserted. 



(1013) P^eudapanteles Ashmead. 

 Metathorax areolated, or at least with a distinct areola or median area; ovipos- 

 itor always long or prominently ex.serted...(1014) Urogaster Ashmead. 



14. Clypeus entirely separated from the face 18 



Clypens not entirely separated from the face 15 



15. Metathorax with a prominent median longitudinal carina or the surface very 



coarsely rugose 16 



Metathorax vithoxt such a carina, but with a more or less distinct median area 

 or areola. 

 Front wings with the areolet very small; second al)dominal segment much 



shorter than the third ( 1015) IIijpomlerogaMrr Ashmead, new genus. 



(Type, Microgader zonarins Say. ) 



16. Second abdominal segment separated from the third by a deep, transverse fur- 



row, not trilobed 17 



Second abdominal segment not separated from the third by a deep, transverse 

 furrow, and trilobed by two nearly parallel longitudinal grooved lines 

 or furrows; ovipositor at most subexserted, not prominent. 



(1016) Diolcogaster Ashmead, new genus. 

 (Type, MIcrogaster meUigaslcr Provancher. ) 



17. Mesopleural furrow long and crenulate; abdomen elongate, the sides parallel; 



plate of first segment oblong, quadrate, as wide as the second segment; 

 ovipositor long; last joint of tarsi long and stout; the pulvillus large, 



longer than the claws ( 1017 ) Ilygroplitis Thomson. 



Mesopleural furrow wanting or shallowly impressed and smooth; abdomen not 

 esjiecially long, the sides arcuate, never parallel; plate of first segment 

 trapezoidal; ovipositor exserted; last joint of tarsi and the pulvillus 



normal ( 1018) Microgasler Latreille. 



IS. Hind til)ial spurs very long, the inner spur fully two-thirds the length of the 

 basal joint of the tarsi; plate of first abdominal .segment very narrow, 



linear ( 1019) Protomicroplitis Ashmead. 



(Type, Prutomicruplitis German! Ashmead, manuscript.) 

 Hind tibial spurs short, the inner spur scarcely one-third the length of the 

 basal joint of the tarsi; plate of first segment variable. 



(1020) MicroplHis Forster. 



