ashmkad: classification of thk ciialcid fi.iks 271 



necessary to use the cuinpound microscope before the number of spurs, in these 

 minute chalcidids, can be definitely settled. 



Four distinct subfamilies, distinguished In' the characters made use of in tlie fol- 

 lowing taljle, have been recognized : 



TABLK OF iSUBFAMILIES. 



1. Mt'tathorax at apex iduiliuud lnvuiiil the inst-rtiou of the hind coxa-; the alMlc.iii.n petiolate or sub- 



petiohite 4 



Mctathorax normal, not produced at apex 2 



2. Abdomen distinctly petiolate ; ifsubsessile it is elongate and stronjily eariiiate l)eneath 3 



Abdomen sessile or subsessile. 



Auteuntc 8-11-jointed, inserted Just above the clyiieus or elose to the mouth l)order. 



Subfamily I. PikeniNjK. 



Antenna' 12-13-jointe<l, and most freciuently inserted far al)ove the elypeus, very rarely inserted 



just above the elypeus Subfamily II. TridymiNvt;. 



3. Autennie 12-13-jointed ; marginal vein always shorter than the subcostal, the costal cell normal ; 



second abdominal segment often large but not especially lengtliened ; ovipositor not exserted ; meso- 

 thoracic furrows most frequently complete Subfamily III. MlscoGASTERIN.aE. 



4. Antenna; 13-14-jointed, subclavate, inserted below tlie middle of tlie face ; front wings with the mar- 



ginal vein very long, usually fully as long as the subcostal vein ; second abdominal segment much 

 lengthened ; ovipositor usually exserted ; mesothoracic furrows incomplete ; r? antenna; often verti- 

 cellate-pilose Subfamily IV . Lklapin^. 



SUP.FAMILV I. IMRENIN.E. 

 1843. Pireniani, Tribus (partim), Haliday, Trans. Ent. Soc. Loudon, III., p. 205. 

 1856. Pyrenoidte, Familie (partim), FOrster, Hym. Stud., II. , pp. 18, 22 and 40. 

 1875. Pirenina, Tribus, Thomson, Hym. Skand., IV., pp. 12 and 187. 

 1880. Pirenina', Subfamily (partim), Howard", Ent. Amer., L, p. l'.)8. 

 1899. Pireninaj, Subfamily 1., Ashmead, Proc. Ent. Soc. Washington, IV., p. 247. 



This group is of small extent, although widely distributed. It is separated from 

 the other subfamilies principally by the paucity of joints in the antennte, and most 

 of the species falling in it, whose parasitism is known, attack dipterous larvtc. 



The genera Culijpso and MacnMjknes are easily separated by the different shaped 

 heads in the males. Neither Haliday nor Thomson, however, give the characters 

 to separate the females, and since I am only acquainted with Macroyleiies, it has been 

 impossiljle to give characters to separate the females. 



TABLE OF GENERA. 



1 . Females 2 



Males 9 



2. Eyes pubescent 3 



Eyes bare 5 



