294 BULLETIN 143, UNITED STATES NATIOjSTAL MUSEUM 



second abdominal sternite convex, without a median pit or a row of 

 hairs simulating a carina. Length, 11.5 mm. 



Head black, clothed with long, erect, black pubescence, except that 

 on the vertex and posterior part of the front orange; clypeus biden- 

 tate medially on the apical margin, the disk with, moderate, shallow 

 confluent punctures ; scape bicarinate beneath, coarsely punctured and 

 clothed with long, black hairs; first segment of the flagellum three- 

 fourths the length of the second ; antennal scrobes distinctly carinate 

 above; front ver}^ coarsely rugoso-punctate ; vertex coarsely con- 

 fluently punctate; genae with moderate, close punctures, the latter 

 smaller than those of the front and vertex; eyes large, very promi- 

 nent; vertex gibbose behind the ocelli, much more prominent than 

 the lateral portions ; relative widths of head and thorax, 6-7.5. 



Thorax black; the pronotum, mesonotum, scutellum, and metano- 

 tum clothed with long, erect, orange pubescence, the remainder of the 

 thorax clothed with long, erect black pubescence ; anterior margin of 

 the pronotum emarginate medially, the cephalic surface of the 

 emargination glabrous, impunctate; pronotum, mesonotum, and 

 scutellum very coarsel}^ and closely punctured; propleura with mod- 

 erate, close punctures, smaller and more separated along the caudal 

 margin; anterior half of mesopleura with large, separated punctures, 

 the posterior half with the punctures very close and more or less 

 confluent; ventral half of metapleura with large and close punctures 

 at the ventral margin, becoming smaller and separated dorsally, the 

 dorsal half of metapleura glabrous, impunctate; anterior half of 

 sides of propodeum with large, more or less separated punctures, the 

 posterior half irregularly foveolate; dorsal and posterior faces of 

 propodeum irregularly foveolate; tegulae glabrous, impunctate 

 except the basal and inner lateral margins with small, separated 

 punctures. 



Abdomen black; first tergite coarsely and rugosely punctured, 

 except the punctures at the apical margin small and close, clothed 

 with long, erect, black pubescence; second tergite with moderate, 

 deep, slightly elongate punctures, separated on the disk, close and 

 more or less confluent laterally, the basal third clothed with long, 

 erect, black pubescence; the apical two-thirds clothed with long, 

 erect orange pubescence ; tergites 3-6 with close, moderate punctures, 

 clothed with long, erect, orange pubescence; last tergite convex, the 

 lateral and apical margins reflexed, the disk delicately reticulated, 

 basal fourth clothed with long, erect, orange pubescence, the apical 

 three-fourths bare; first sternite with a prominent median longi- 

 tudinal carina, with large, close punctures, and clothed with long, 

 erect, black pubescence; second sternite with large, elongate, sepa- 

 rated, and confluent punctures, clothed with sparse, long, erect, black 



