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A generic Synopsis of the Hymenopterous Family 

 Chalcididae. 



By L. O. Howard 



(Continued from page 219 oi' Vol. I.) 



Subfamily PTEROMALINAE. 

 SYNOPSIS OF TRIBES. 



Posterior tibice 2-spurred. 



Parapsides of mesoscutum discernible, or indicated anteriorly. 

 Abdomen with a more or less distinct petiole, usually long; parapsides discernible 



anteriorly or complete Tribe Mischogastrides. 



Abdomen almost sessile; parapsides complete Tribe Cleonymides. 



Parapsides of mesoscutum not at all discernible Tribe Colotrechnides. 



Posterior tibiae 1 -spurred.* 



Anterior femora enlarged Tribe Chiropachides. 



Anterior femora not enlarged. 



Head very large, broad, excavated in front, with two acute tubercles on each 



side Tribe Caratomides. 



Head not especially large. 

 Clypeus in the middle at apex acutely 2-dcntate; marginal vein of fore wings 



often thickened , Tribe Sphegigastrides. 



Clypeus not 2-dentate. Marginal vein not at all or very slightly thickened. 



Wings with a long marginal vein, short stigmal and almost no club 



Tribe Diparides. 

 Club always quite pronounced Tribe Pteromalides. 



Tribe MISCHOGASTRIDES. 

 Mesoscutar parapsides plainly discernible. 

 Collar not separated. 

 Dorsum convex; parapsides convex. 



Petiole short, or moderately so; left mandible 3-dentate. 



Petiole rugose or smooth; rf trophi normal .:• 



Cenus Lamprotatus Westwood. 

 Petiole punctate, sub- depressed; wings with a very large club. 



Dorsum sericeus-punctate; (J 1 trophi normal 



*Genus Gitognathus Thomson. 



1 lorsum squamous-punctate ; rf trophi normal 



*Genus Stictomischus Thomson. 



1 vtiole very short ; both mandibles 3-dentate; club small 



*Genus Seladerma Walker. 



Petiole long; both mandibles 4-dentate; club large 



Genus Mischogaster Walker. 

 Dorsum of mesonotum much flatter; parapsidal sutures not deep, posteriorly 

 delicate but complete. 

 MetSthorax rugose; <$ antennae sub clavate .*Genus Megorismus Walker. 



* Sometimes 2-spurred in the Chiropachides in which case the fore wings are 

 transversely banded with brown. (See synopsis of this Tribe. ) Also 2-spurred in 

 the genus Dimachus oftheTribe Pteromalides. 



