80 BULLETIN" 143, UNITED STATES NATIONAL MUSEUM 



Abdomen black, clothed throughout with pale yellowish pubes- 

 cence, except the basal half of the second tergite, and the second 

 sternite with black pubescence; first tergite shallowly punctate, 

 except the apical margin rather deeply punctate, the pale pubescence 

 very sparse; second tergite with small, more or less confluent punc- 

 tures ; tergites 3-6 with small, close, confluent punctures ; last tergite 

 weakly longitudinally rugose ; first sternite without a distinct median 

 carina; second sternite distinctly concave medially, with large scat- 

 tered punctures on the disk, slightly scabrous at the sides and apical 

 margin ; sternites 3-7 with sparse, shallow punctures. 



Legs black; clothed with pale hairs; the posterior trochanters 

 produced at the apex within into a prominent blunt tooth. 



Wings dark fuliginous; cell 2nd K^ + Ra broadly truncate at the 

 apex ; cell R^ almost obsolete ; vein M3+4 received by cell R5 about one- 

 third the distance from the base to the apex ; veins r-m and R5 very 

 widely separated on vein r. 



Female. — Very dark reddish black, clothed with white pubescence ; 

 length, 12 mm. Head dark reddish black, clothed throughout with 

 long, recumbent and erect whitish hairs; mandibles acute at the tip, 

 a tooth within ; clypeus bidentate medially at the apex, partially con- 

 cealed by the clypeal fringe of long hairs; scape clothed with stiff 

 whitish hairs; first joint of flagellum twice as long as its own width 

 at the apex ; antennal scrobes distinctly carinate above ; front, vertex 

 and genae with large, shallow, confluent punctures; relative lengths 

 of head and thorax, 7-8.5. 



Thorax very dark reddish black, as broad as it is long ; metapleura 

 and propodeum with sparse, black pubescence; remainder of thorax 

 with recumbent and erect whitish pubescence; dorsum of thorax 

 with very large, coarse punctures; propleura with large shallow 

 punctures; the posterior margin bordered with a fringe of whitish 

 hairs; mesopleura with scattered, shallow punctures on the anterior 

 half, large, confluent punctures on the posterior half, the posterior 

 margin bordered with a few dark hairs ; metapleura glabrous with a 

 few scattered, shallow punctures; sides and posterior face of pro- 

 podeum coarsely reticulate. 



Abdomen very dark reddish black; first segment short, coarsely 

 punctured at the sides and posterior margin above, clothed above 

 with sparse, long black hairs, below with pale hairs ; basal margin of 

 second tergite clothed with sparse black hairs, remainder of abdomen 

 clothed with recumbent and erect very pale yellowish hairs; second 

 tergite with large, coarse, almost confluent punctures throughout; 

 tergites 3-5 with very close, moderate punctures; pygidial area 

 strongly, longitudinally rugose; first sternite without any definite 

 median carina; basal and median portion of second sternite weakly 



