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A generic Synopsis of the Hymenopterous Family 

 Chalcididae. 



By L. O. Howard 

 (Continued from page 219 of Vol. I.) 



Subfamily PTEROMALINAE. 

 SYNOPSIS OF TRIBES. 

 Posterior tibia; 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 i -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 a-dentate; marginal vein of fore wings 



often thickened , Trilie Sphegigastrides. 



Clypeus not 2-dentate. IVIarginal 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; (^ troplii normal 



Genus Lamprotatus Westwood. 

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



Dorsum sericeus-punctate; (^ trophi normal 



*Genus Gitognathus Thomson. 



Dorsum squamous-punctate; (^ trophi normal 



*Genus Stictomischus Thomson. 



Petiole very short; both mandibles 3-dentate; club small 



*Genus Seladerma Walker. 



Petiole long; both mandibles 4dentate; club large 



Genus Mischogaster Walker. 

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

 delicate but complete. 

 Metathorax rugose; (^ antennoe 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 DimarJms of the Tribe Pleromalkles. 



