238 PROCEEDINGS OF THE ACADEMY OF [1897. 



illary palpi pale ; body pubescence cinereous, especially dense on 

 face and clypeus ; anterior margin of the latter rounded, pronotum 

 subangulate posteriorly ; middle segment finely granulated, slightly 

 impressed down the middle ; wings with costal margin broadly fus- 

 cous, otherwise subhyaline, nervures testaceous, second submarginal 

 narrower than usual, its length at top fully one-third less than the 

 corresponding part of the third submarginal ; first abdominal seg- 

 ment rather long, distinctly longer than the second, petiolate. 

 Length 8 mm. 



Santarem. One specimen. The green color also extends on the 

 coxa?, trochanters and part of femora. 



Agenia albimacula n. sp. 



9 . — Black, shining, rather densely covered with cinereous pile, 

 especially on middle segment and abdomen ; spot in middle of inner 

 orbits, at base of antenna?, at apex of scape above anterior margin 

 of clypeus, and joints 4-8 of flagellum above whitish ; a line com- 

 pletely enclosing the pronotum, teguke, spot on dorsulum posteriorly, 

 spot on scutellum, legs, and apex of dorsal abdominal segments 2-4 

 obscurely in the middle, fulvous ; tarsal joints ringed with dark at 

 apex ; clypeus broadly subtruncate, a smooth shining depression be- 

 fore anterior ocellus ; first and second joints of flagellum about equal 

 in length; pronotum angular posteriorly; middle segment appar- 

 ently smooth, scarcely impressed ; wings subhyaline, fuscous at apex, 

 and a fuscous cloud fills the second submarginal and apex of third 

 discoidal cells, third submarginal at top fully one-third greater than 

 the second at the corresponding part ; legs spinose, but not strongly. 

 Length H mm. 



Santarem (February). One specimen. Were it not for the 

 bearded maxilla?, 1 should have referred this species to Sulius in 

 consequence of the spinose legs. The basal vein, also, is not inter- 

 stitial. 



Agenia trifasciata n. sp. 



$ . — Black, head and thorax opaque ; scape, pedicellum, anterior 

 femora at apex and their tibia? and tarsi reddish-testaceous, remain- 

 der of legs except coxa? obscurely testaceous ; anterior margin of 

 clypeus and sides of face narrowly yellowish, clypeus rounded an- 

 teriorly ; a depression' bordering each hind ocelli outwardly ; pro- 

 notum subangulate posteriorly, evenly rounded in front ; middle- 

 segment apparently smooth, not impressed ; legs slightly spinose ; 



