16 U. S. NATIONAL MUSEUM BULLETIN 216 



3. Hind tibia entirely yellow; range: Washington and Oregon. 



Id. longicalcar flavicrus, new subspecies 

 Hind tibia yellow with the apex more or less infuscate 4 



4. Apical infuscation of hind tibia forming a complete ring; range: Quebec and 



Ontario lc. longicalcar talaris, new subspecies 



Apical infuscation of hind tibia broad below but absent above; range: Berkeley, 

 Calif lc. longicalcar suralis, new subspecies 



la. Chorinaeus longicalcar longicalcar Thomson 



Chorinaeus longicalcar Thomson, 1887, Deutsche Ent. Zeitschr., vol. 31, p. 201; 

 9. Type: 9, Schwerin, Germany (? Lund). 



Metapleurum with hairs near its coxal socket and in a broad band 

 along the pleural carina extending from apex to somewhat forward of 

 propodeal spiracle. 



Male: Black. Face, lower lateral part of frons, cheek, clypeus, 

 mouth parts, scape and pedicel in front, tegula, most of front and 

 middle coxae, front and middle trochanters, much of hind trochanters, 

 front side of front and middle femora, base and more or less of top and 

 other parts of front and middle tibiae, and front and middle tarsi, 

 yellow or yellowish; basal 0.2 ± of hind tibia yellowish above; front 

 and middle coxae mostly blackish behind and basally; hind coxa black 

 with the apex yellowish; flagellum brownish beneath. 



Female: Black. Interantennal process and inner orbit from level of 

 clypeal fovea to lower corner of frons yellowish, the orbital mark 

 dilated at its upper end but elsewhere quite narrow; mandible fer- 

 ruginous, blackish basally; palpi yellowish brown; flagellum dark 

 brown ; tegula brownish ferruginous ; legs beyond coxae fulvous ; front 

 and middle coxae ferruginous, black basally; hind coxa black, fer- 

 ruginous at apex. 



This a European subspecies. The description above is based on two 

 males and a female from Belgium and a female from Holstein. 



lb. Chorinaeus longicalcar plcturus Davis 



Figures 178, a,b 



Chorinaeus pleturus Davis, 1897, Trans. Amer. Ent. Soc, vol. 24, p. 211; 9 . 

 Type: 9, Agricultural College, Mich. (East Lansing). 



Metapleurum with hairs near its coxal socket and m a broad band 

 along pleural carina, extending from apex to somewhat forward of 

 propodeal spiracle. 



Male: Black. Face, lower lateral part of frons, front part of cheek, 

 clypeus, mouth parts, scape and pedicel in front, and tegula, yellow; 

 front and middle coxae yellow, basally more or less fulvous or blackish ; 

 hind coxa black, yellowish at apex, a little more extensively yellowish 

 below; trochanters yellow; front and middle legs beyond trochanters 



