266 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



29. Propodeum finely rugulose, the median area defined by weak carinae, the 



other areas not delimited ; second tergite as long as third. 



tennessensis, new species 



Propodeum coarsely rugose, areas defined by prominent carinae; second 



tergite shorter than third 30 



30. Notaulices smooth ; hind tarsus not longer than hind tibia. 



brevitarsis, new species 

 Notaulices foveolate ; hind tarsus a little longer than hind tibia 31 



31. Mesoscutum entirely ferruginous; anterior and middle femora and tibiae 



reddish yellow, tlie former sometimes blackish basally ; first intercubitus 



gently curved, not angulate seminiger (Cresson) 



Mesoscutum black anteriorly ; anterior and middle femora and tibiae largely 

 black or piceous; first intercubitus usually distinctly angulate below 

 middle nigriceps Viereck 



ABBREVIATIONS USED ON PLATES 



AM, anterior portion of metapleuron ; AS, antennal socket ; B-B, basal vein ; 

 BR, brachial vein ; C-C, cubitus ; CH, cheek ; CL, clypeus ; CX, coxa ; D-D, 

 discoidal vein; E, eye; FC, face; FR, frons; G, galea; HP, hypopygium ; lA, 

 interanal vein ; L, labrum ; LG, lower groove of mesopleuron ; LM, lateral lobe 

 of mesonotum; LP, lateral face of pronotum; M, medius; MD, mandible; MF, 

 malar furrow ; MM, median lobe of mesonotum ; MN, mesonotum ; MP, meso- 

 pleuron ; MSC, mesoscutellum ; MT, metacarpus ; MTN, metanotum ; MTP, meta- 

 pleuron ; NT, notaulix ; NV, nervulus ; OC, ocelli ; PE, proepisternum ; PG, i)OS- 

 terior groove of mesopleuron ; PM, posterior portion of metapleuron ; PP, propo- 

 deum ; RO, recurrent vein; R-R, radius; SD, subdiscoidal vein; SP, spiracle; 

 S-S, submedius ; ST, stigma ; TF, transverse fossa ; TG, tegula ; TP, temple ; UG, 

 upper groove of mesopleuron ; V, vertex ; IAS, first abdominal suture ; IIC, first 

 intercubital vein ; IT, first tergite ; 2IC, second intercubital vein ; 2T, second 

 tergite ; 3T, third tergite ; 8T, eighth tergite. 



U. S. GOVERNMENT PRINTING OFFICE: 1949 



