H. J. FRANKLIN. 165 



Types. — Described from seventeen females of which five 

 are deposited in the collection of the Massachusetts Agri- 

 cultural College, four in the collection of the New Hampshire 

 College, and the remainder (8) in the collection of the United 

 States National Museum. 



Face dark ; occiput with yelloiv pile ; dorsum of thorax entirely cov- 

 ered with yellow or with a dark spot on the disc, or with a distinct dark 

 interalar band ; pleurce yellow to, or nearly to, the bases of the le^s ; or 

 with their entire lower halves dark ; dorsum of abdomen usually with 

 yellow on the sides of the first segnietit and oti the sides of the apical mar- 

 gin of the third, but sometimes entirely dark except for the yellow on the 

 fourth segment and the light ferruginous pubesce7ice on the apical por- 

 tion of the apical one. Apex of abdomen u?nisually strongly recurved. 



Female. — Head. — Face sometimes with a slight yellow touch above 

 the bases of the antennae, but usually entirely dark; occiput with a 

 large triangular patch of yellow pile ; cheeks dark. Malar space nearly 

 as long as its width at the apex ; about one-fourth as long as the eye. 

 Clypeus with its front part, especially in the middle, somewhat sparsely 

 punctate, its base and sides being more or less densely so. Flagellum 

 of antenna; nearly twice as long as the scape ; the third antennal seg- 

 ment longer than the fifth and the fifth longer than the fourth. 



Thorax. — Dorsum, except the small bare spot on the very center of 

 of the disc, sometimes clothed entirely with yellow pile, sometimes 

 with a black spot on the disc, and sometimes with a distinct though 

 poorly defined black band between the bases of the wings ; mesopleurae 

 usually covered with yellow pile to, or nearly to, the bases of the legs, 

 but sometimes with their entire lower halves dark ; metapleurae with 

 considerable yellow pile or entirely dark ; sides of the median segment 

 dark, sometimes with a few light hairs admixed ; extreme sides of the 

 metanotum (postscutellum) sometimes entirely dark, but generally 

 with considerable yellow pile. 



Abdomen. — Dorsum: segment one dark in the middle, and usually 

 wth more or less yellow pile on the sides but sometimes entirely dark ; 

 segment two dark ; segment three dark, but usually with considerable 

 yellow pile on the sides of its apical border, segment four, except for 

 some black pile on its very middle portion, covered with yellow pile ; 

 segment five dark, but often considerably ferruginous on the sides; 

 segment six strongly pointed at its apex and usually bearing light 

 brown ferruginous pubescence over a considerable portion of its sur- 

 face, this pubescence being very thick and matted about the very apex. 

 Venter dark, sometimes with a few scattering yellowish or ferruginous 

 hairs. Hypopygium very pointed at apex, its lateral carinse rather 

 strongly elevated and approaching each other posteriorly considerably 

 in front of the apex of the segment ; the apical portion bearing a con- 



TRANS. AM. ENT. SOC. , XXXVII. (21*) 



