—97— 



A generic Synopsis of the Hymenopterous family 



Chalcididae. 



By L. O. Howard. 



(Continued from page 38.) 



Note. — An asterisk should have been prefixed to the following subgenera men- 

 tioned in the last installment of this synopsis, as none of them have been found as yet 

 in this country: 



Ccenocrepis, Ilemiirichus, Ilabriins, Dinarmus, Pieroscytus, Boeoiomas, Plaiy- 

 t-rmus, Amblymerus, Cecidostiba, Ccunacis, CriceUius, Halcoius, Stinophi--, Ilahrocy- 

 t(.<i, Spintherus, Polycelis, Trichomalus, Ilolizous, Trichoijlenus, Jleraponis, Caiol- 

 aceiis, Diglochis, Arlhrolytus, Dlbrachys, Vwlopisthus, Dirhiams. 



Subfamily EUCHARINAE. 

 The genera of this subfamily are in such confusion that it is useless 

 to attempt a synopsis before they have been thoroughly reviewed. I give 

 simply Cameron's synopsis of the four Central American genera. 



Sen ellum simple at apex. Antennae 13 -jointed, simple in both sexes 



*Genus Orasama Cameron. 

 S.-utelium ending in two short blunt teeth which are not much longer than broad. 

 Sides of metathorax with leaf-like expansions at apex. Antennce serrate in fe- 

 male, simple in male *Genus Lophyrocera Cameron. 



Scutellum ending in processes which are as long as the abdomen. Antenna; in male 

 flabellaie. 



Third joint of antenn;f as long as all the succeeding joints together . ...... 



*Genus Lirata Cameron . 

 Third joint of autenii.x; not much longer than fnnlh Cieinis Kapala Cameron. 



Subfamily PERILAMPINAE. 

 Abdomen not petiolate. 



Flagellum of antennce compacted into a short club....*Genus Philomides Haliday. 



Flagellum long and only slightly clavate Genus Perilampus Latreille. 



Abdomen petiolate. 



Mesonotum thickly and deeply punctate *Gcnus Lamprostylus Foerster. 



Mesonotum not so punctured *Genus Elatus Walker. 



Subfamily EURYTOMINAE. 

 Marginal vein thick, quadrate; post marginal and stigmal very s}u;rt; a lunate or 

 transverse submarginal dusky shade. Male antenna.' similar to O, funicle 



4-jointed Genus Decatoma Spinola. 



Marginal vein linear; no submarginal fascia; male antennae verticillate-jjilose. 

 Cheeks usually acute. Mesonotum umbilicate-punctate. 



Scape much longer than first funicle joint Genus Eurytoma Illi<rer. 



Scape equal in length to first funicle joint Genus Bephrata Cameron. 



Cheeks usually rounded. Mesonotum with more obsolete punctures, not umbili- 

 cate-punctate. 

 Body short; metathorax almost vertical. Marginal vein not longer than stigmal. 



tienus Systole Walker. 

 Body long, metathorax sloping gradually. Marginal vein longer than stigmal. 



Genus Isosoma Walker. 



