388 PROCEEDINGS OF THE ACADEMY OF [1897. 



two dorsal segments connected by a narrow line, a medially nar- 

 rowed fascia on dorsals 3-5, sixth almost entirely and a short line 

 at each side of ventrals 2, 3, or 2-4, at apex, yellow ; wings subbya- 

 line, nervnres testaceous. Length about 9 mm. 



$ . — Similar to 9 ; space between hind ocelli distinctly less than 

 that between them and eyes ; third and fourth joints of flagellum 

 uniting in such a way as to form an emargination beneath, the 

 fourth joint rather prominent at apex ; furrowing forming the en- 

 closure of middle segment foveolate ; punctuation of mesosternum 

 and second ventral segment finer and closer than in the $ , but that 

 of the abdomen dorsally is coarser ; four anterior femora yellow at 

 apex, a spot at apex of hind pair beneath ; joints 1-3 of medial 

 tarsi produced at apex on inner side. Length 8 mm. 



Chapada (March, April, November, December). One $ exam- 

 ple is very small, 5 mm. According to Kohl's table, belongs in the 

 Solenius group. 



The collection also contains several additional species of Crabro, 

 probably new to science, but represented by single specimens. 



