400 PROCEEDINGS OF THE ACADEMY OF [1898. 



the latter narrow and long, fully reaching base of mandibles; tho- 

 rax strongly punctured ; pronotura very sharply margined ante- 

 riorly, with a distinct medial surface; dorsulum nearly one-quarter 

 longer than broad ; postscutellum not tuberculate, triangular, the 

 posterior margin extended ; middle segment strongly concave, more 

 or less compressed laterally ; abdomen strongly punctured, the first 

 segment short, campanulate, the basal petiole scarcely evident ; 

 wings subhyaline, black in the costal cell ; third submarginal much 

 longer than high, narrowed about one-third above, the outer nervure 

 strongly sinuate ; nervures and stigma black. Length 8 mm. 

 Mararu, April. One specimen. 



Charterginus cinctellus n. sp. 



9 or $ . — Black ; line on inner orbits helow emargination, ex- 

 tending along sides of clypeus to apex, narrow line on posterior or- 

 bits, two short curved lines (sometimes wanting) on vertex, line on 

 pronotum anteriorly, and a short one on posterior margin just before 

 tegul?e, anterior margin of scutellum and postscutellum, and a fascia 

 at apex of abdominal segments 1-5, pale yellow ; scape reddish be- 

 neath. 



Head about as in fuseatus ; middle segment not as strongly mar- 

 gined, shorter medially ; dorsulum shorter, not one-quarter longer 

 than broad ; postscutellum similar, but not as triangular; first dor- 

 sal segment short, campanulate, the basal petiole quite short, but 

 still more evident than in C. fuseatus ; wings subhyaline through- 

 out ; nervures and stigma black; third submarginal cell a little 

 higher than long, narrowed about one-fifth above. Length 7 mm. 



Chapada, October. Seven specimens. Has a superficial resem- 

 blance to Chartergas ehartarius, but is smaller. 



Nectarinia Lecheguana Latr. 



About 50 specimens. Chapada, January, June, September to 

 December; Corumba, March ; Santarem, 



Neotarinia bilineolata Spin. 



Chapada, January, March, May, November, December. Thirty- 

 five specimens. 



Nectarinia Augusti Sauss, 



Chapada, same months as bilineolata; Santarem. Twenty-five 

 specimens. 

 Nectarinia scntellata Spin. 



Chapada, December. One example. 



