220 PROCEEDINGS OF THE ACADE^tY OF [Maich, 



extreme tip ; tegulre very dark brown ; Aviugs hyaline, apex fulig- 

 inous; nervures and stigma sepia-brown; clypeus with large, sparse 

 punctures on a tessellate surface ; mesothorax microscopically tessel- 

 late, dull, with numerous minute punctures and scattered black 

 liairs ; basal area of metathorax not defined, with feeble oblique 

 stride ; lower inner angle of third submarginal cell less than a right 

 angle; most of basal segment of abdomen smooth and shining, but 

 its apical portion and all of second segment rough and minutely 

 sculptured; under side of abdomen with long yellowish-white hair; 

 hind spur of hind tibia pectinate, with three large blunt teeth. 

 The basal segment of the abdomen is broader than long, thus 

 much broader than in the last species. 



Hah. — Chapada, January, March, September, November, 

 December; 83 specimens. The middle of the third abdominal 

 segment is often black. This species evidently belongs with Cory- 

 nura ; but, at least in Ihe ?, it has the abdomen formed as in 

 Augochlora. The maxillary palpi have six subequal joints, the 

 first two stout, the third subtriangular. 



In all the species of Conjnura the anterior part of the meso- 

 thorax overlaps the middle of the prothorax, and in C. chajKidicola 

 this is particularly well marked, the projecting portion being 

 bilobed. 



CORYNUROPSIS n. subg. 



First recurrent nervure received by second submarginal cell 

 before its end; mesothorax smooth and shining, with strong very 

 sparse punctures, its anterior morgin prominently overlapping 

 prothorax; hind spur of hind tibia of 9 pectinate with large teeth. 



Type, C. danvini n. sp. 



Corynura (Corynuropsis) darwini n. sp. 



?. — Length about 7 mm. ; head circular, a trifle broader than 

 thorax, dark }^ellowish-green, eyes emarginate; sides of face with 

 appressed pale plumose hair; clypeus short, it and the supraclypeal 

 area with numerous very large punctures; ocelli small and close 

 together; front densely and closely punctured; labrum biuodulose; 

 mandibles ferruginous at apex; mesothorax shining, purple-black, 

 with large sparse punctures; parapsidal grooves very deep; other 

 parts of thorax dark green; pleura with thin white pubescence; 

 base of metathorax smooth and shining, with a deep transverse 



