248 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88 



Anterolateral and sublateral angles of pronotum slightly produced, 

 vaguely carinate ; pubescence fine, inconspicuous, all setae of uniform 

 length; prepectus extremely narrow, sometimes entirely concealed; 

 apex of mesoscutellum provided with a narrow, mesally depressed 

 lamina; outer basal tooth of metafemur large (as in fig. 11, j), fol- 

 lowed by six to eight smaller teeth, apical two or three indistinctly 

 divided; iimer tooth absent: apex of metatibia very slender and 

 acute, long, almost reaching trochanter when tibia is folded against 

 femur. 



Propodeum coarsely and irregularly carinate, large, lateral teeth 

 projecting on each side of point of insertion of petiole, spiracular 

 openings vertical; petiole glabrous, twice as long as wide, a pair of 

 minute lateral, subbasal projections usually present; gaster usually 

 equal in length to metafemur, abdominal segments 4 to 7 densely 

 covered with lateral setae; eighth tergite densely setose; cerci round, 

 located near posterior margin of epipygium ; apex of ovipositor sheath 

 provided with a few long, ventral setae ; apex of hypopygium isolated 

 from eighth tergite (as in fig. 13, g) . 



Male : 6.5 mm. Antennal scape broadened from base to apex (fig. 

 8, a) ; outer basal tooth of metafemur no longer than following ones ; 

 petiole three times as long as wide ; gaster slightly shorter than meta- 

 femur; ninth sternite shallowly excavated on meson (fig. 14, a). 



Type locality. — Mexico. 



Types. — Lectotype, male, British Museum; lectoallotype, female, 

 British Museum ; comparisons made by Dr. Ch. Ferriere. The abdo- 

 men and hindlegs are missing from the female type. 



Host. — Unknown. 



Distribution. — Arizona: Grand Canyon, July 10, 1892, 1 female; 

 July 27, 1 male. Kansas: McPherson County, July 1, 1931, C. W. 

 Sabrosky, 1 female. Oklahoma : Reagan, June 2, 1937, H. H. Ross, 

 5 females, 3 males. Oregon : Breitenbush Hot Springs, July 2, 1934, 

 H. A. Scullen, 1 male. Mexico : Matamoros, August 12, 1903, W. L. 

 Tower, 1 female. 



CHALCIS LASIA, new species 

 FiGUBES 7, i; 8. 6; 11, a; 14, &, o 



This species is closely allied to Ch-alcis divisa (Walker) but is most 

 readily distinguished by these characters : Body elongate, narrow, con- 

 spicuously covered with long, white setae of various lengths, poste- 

 rior carina of head extended from base of mandible to posterodorsal 

 angle of head, apical lamina of mesoscutellum not depressed on meson. 



Description. — Black with yellow markings, setae white; frons lat- 

 erad of scrobe cavity, anterior and mesolegs, lateral triangular spots 

 on dorsum of pronotum, two lateral spots on mesoscutellmn, in fe- 



