THE TRIBE CHALCIDINI — BURKS 261 



flagellum stout, mostly as broad as long, segment 4 always longer than 

 5; malar space narrow, always only one-third or less height of com- 

 pound eye ; left mandible with two teeth, right with three ; pubescence 

 of body long, sparse ; procoxae, from lateral aspect, longer than wide ; 

 tarsal claws small, simple in both sexes; apical lamina of mesoscu- 

 tellum very narrow and emarginate on meson ; metacoxae semiglobose, 

 outer dorsal surface glabrous ; metaf emora with several long, slender, 

 slightly curved teeth on outer ventral margin; propodeum, from 

 lateral aspect, strongly declivent, coarsely rugose, entirely without 

 lateral projections; gaster elongate, blunt at apex (fig. 13, j) ; female 

 hypopygium exserted, partly isolated from eighth tergite; ninth 

 sternite of male obscurely emarginate at apex. 



The single known species parasitizes pupae of Lycaenidae. 



METADONTIA AMOENA (Say) 



Figures 11, Jc; 13, ; 



Chalcis amoena Sat, Boston Journ. Nat. Hist., vol. 1, p. 271, 1836. — Cresson, 



Proc. Ent. Soc. Philadelphia, vol. 1, p. 228, 1862. 

 Smicra amoena (Say) Walker, Notes on Chalcidiae, p. 51, 1871. — Ckesson, 



Trans. Amer. Ent. Soc, vol. 4, p. 58, 1872.— Howard, U. S. Dept. Agr. Bur. 



Ent. Bull. 5, p. 33, 1885. — Cresson, Synopsis of the families and genera of 



the Hymenoptera of America north of Mexico, p. 233, 1887. — Dalla Torre, 



Catalogus hymenopterorum, vol. 5, p. 373, 1898. — Schmiedeknecht, Genera 



insectornm, fasc. 97, p. 34, 1909. 

 Metadontia amoena (Say) Sanderson, U. S. Dept. Agr. Bur. Ent. Bull. 56, p. 



42, 1906. 

 Smicra montana Ashmead, Trans. Amer. Ent. Soc, vol. 14, p. 183, 1887. — Daua 



Torre, Catalogus hymenopterorum, vol. 5, p. 379, 1898. 

 Metadontia montana (Ashmead) Ashmead, Mem. Carnegie Mus., vol. 1, p. 252, 



1904. — Schmiedeknecht, Genera insectorum, fasc. 97, p. 46, 1909. — Gahan 



and Fagan, U. S. Nat. Mus. Bull. 124, p. 87, 1923. 

 Plagiosmicra ashmeadi Cameron, Invert. Pacifica, vol. 1, p. 56, 1904. — 



Schmiedeknecht, Genera insectorum, fasc. 97, p. 44, 1909. — Gahan and 



Fagan, U. S. Nat. Mus. Bull. 124, p. 115, 1923. 

 Octosmicra sp. Reinhard, Texas Agr. Exp. Stat. Bull. 401, p. 33, 1929. 



This species is most readily recognized by the broad compact 

 thorax, the completely carinate anterior dorsal margin of the pro- 

 notum, and the blunt apex of the abdomen. 



Description. — Yellow with black markings; mesal stripe in scrobe 

 cavity, occipital area of head, mesopraescutum usually with two an- 

 terior stripes converging to form a single mesal stripe near posterior 

 margin, broad mesal areas of lobes of mesoscutum, anteromesal angles 

 and posterior margins of axillae, longitudinal mesal stripe of meso- 

 scutellum, variable areas of pleurae, ventral apices of metacoxae, 

 metatrochanters usually, dorsal, basoventral, and apical spots on outer 

 surface of metafemora, usually entire propodeum, petiole, and vari- 

 able transverse dorsal bands of gaster, black. 



