462 PROCEEDINGS OF THE ACADEMY OF [1899. 



Montezumia brunnea Sauss. 



Three specimens. Cliapada, February, April. 



Montezumia Leprieurii Spin. 



Cha2:)ada, January; Santareni, February. Four specimens. 



Montezumia caerulea Sauss. 



Numerous specimens of both sexes. Chapada, March, April; 

 Santarem. M. azureipeniiis Saussure I regard as a mere variety 

 of ccerulea. 

 Montezumia infundibuliformis Fabr. 



Santarem. Eight specimens. 



Montezumia cortesia Sauss. 



Kio de Janeiro, November. M. sepulchralis is, no doubt, a 

 distinct species, and not a variety of cortesia, as intimated by 

 Saussure. 

 Montezumia analis Sauss. 



Two specimens. Santarem. 

 Montezumia Spinolse Sauss. 



Numerous examples from various localities. 



Montezumia sparsa n. sp. 



?. — Black; mandibles, margin of tegulse, middle segment, post- 

 scutellum sometimes (more rarely both scutella), metapleurse, 

 mesopleurse beneath, legs except part of cox?e, and first abdominal 

 segment ferruginous; wings blue-black; two dots on postscutellum 

 and line at apex of first segment, yellow; clypeus with sparse, 

 shallow, punctures, its fore margin broadly incurved, subdentate 

 laterally; pronotum scarcely margined, with deep, confluent though 

 not close, punctures ; dorsulum Avith punctures well separated, with 

 a narrow, smooth line anterioi-ly in middle; middle segment more 

 broadly, therefore less deeply, depressed than in Splnolw ; first 

 abdominal segment a little narrower, more rounded at sides, less 

 pilose ; second dorsal with sparse shallow punctures medially, the 

 second ventral shining with much larger, sparse punctures. Length 

 19-22 mm. 



Chapada, March. Six specimens. I had at first considered 

 these as a mere variety of M. Spinoloe, but the differences in sculp- 

 ture of thorax and abdomen, as well as the different coloration of 

 the former, induced me to describe it as distinct. The clypeal teeth 



