PARASITICA — ICHNEUMONIDJE. 43 



First abdominal segment 9 with very short petiole, almost sessile ; meta- 

 tliorax with small, circular spiracles ; areolet very small. 



'"Cyrtocryptns Marsh. 

 8.— Metathoras rough, with two transverse carinse, and elongate or linear spira- 

 cles Mesostenus Grav. 



Metathorax polished, with only the anterior transverse carina aiid small 



round or oval spiracles -'^Vematopodiu!* Grav. 



!). — First abdominal segment linear, longitudinally furrowed, its spiracles placed 



before the middle ^Orthopelnia Tasch. 



First abdominal segment expanded posteriorly, its spiracles placed behind 

 the middle. 

 Metathorax with two transverse carinre; abdomen not broader than the 



thorax ' ysclinoceru» Grav. 



Metiithorax, at most, with the posterior carina ; ai)donien broader than 



the thorax '^CatalytUM Fiirst. 



10.— Ovipositor much abbreviated, either scarcely exserted, or so short that it 



does not attain half the length of the first abdominal segment 11. 



Ovipositor elongate, usually longer than half of first abdominal segment. .12. 

 11. -First abdominal segment much expanded behind the spiracles. 



Pteroeorinns Forst. 



First abdominal segment verj- slender to the tin *€'reni nodes Forst. 



1-2. —Metathorax completely and regularly areolated -'IStibeuteM Forst. 



Metathorax not, or imperfectly, areolated. 

 Scutellum distinctly separated. 



Posterior tarsi with the penultimate joint deeply notched or bilobed. 



'-'-Agrothereutes Forst. 

 Posterior tarsi with the penultimate joint not bilobed. 



The rudimentary wings extending beyond the ba.se of the metatho- 

 rax ; fir-st abdominal segment punctured, not longitudinally 



wrinkled Aptesis For.st. 



The rudimentary wings not ertending to ba.se of metathorax ; first 

 abdominal segment more or less longitudinally wrinkled. 



'-'Theroscopus Forst. 

 Scutellum not distinctly separated. 



Face much abbreviated ^PezolochiiN Foret. 



Face of the usual length Pezoniaclius Grav. 



Subfamily Ophionin.e. 

 Table of Genera. 



Cubito-discoidal cell receiving both recurrent nervures 2. 



(ubito-discoidal cell receiving but one recurrent nervure 3. 



"i. — Intermediate tibiie with two ajucal spurs: metathorax smooth or punctured. 



Wings hyaline, stigma distinct, well developed ; clypeus truncate at apex ; 



ocelli large, prominent; thorax and legs glabrous; metathorax rounded 



behind, not rugose Ophiou Fabr. 



Wings fu.scous, stigma obsolete; clypeus obtu.sely pointed at apex; ocelli 

 small : thorax and legs with short, rather den.se pubescence : metathorax 

 truncate behind, coarsely rugose Tliyreodoii Brull^. 



