286 Mr. F. Smith's Monocjraph of the 



and tlie scutellum, shining and impunctate ; the abdomen 

 thinly covered with short pubescence, the lateral margins 

 being thickly fringed ; the wings subhyaline, and having 

 a brilliant coppery lustre, the apical margins with a violet 

 tinge. Length ten to eleven lines. 

 Hah. — Cayenne ; Parana ; Mexico. 



86. Xylocopa grisescens. 

 Xylocopa grisescejiSy St. Farg. Hym. ii. 178, ?. 



This is a large conspicuous insect; it is black, with the 

 thorax above and a portion beneath the wings covered with 

 dense griseous pubescence ; there is also a little on the hinder 

 margin of the vertex ; from the disk of the mesothorax it 

 is usually more or less abraded, leaving a smooth shining 

 space ; wings dark brown, with green and violet irides- 

 cence. Length thirteen to fifteen lines. 



Hab. — Brazil. 



This species may possibly be the Xylocopa lanigcra ot 

 the Hoffmanseggian Collection ; I have received it as such, 

 but I cannot ascertain that it has ever been described under 

 that name. 



87. Xylocopa aurulenta. 

 Bombus auriilentus , Fabr. Syst. Piez. 351, $. 



Xylocopa. aurulenta, St. Farg. Hym. ii. 192; Smith, 

 Cat. Hym. Ins., Apidffi, ii. 361. 



Black : the thorax clothed above with fulvous pubes- 

 cence ; the disk of the thorax shining and impunctate ; 

 the v/ings fusco-hyaline, v>dth a bright coppery iridescence, 

 tinted with violet at their apex. Length seven to eight 

 lines. 



Hab. — Soutb America ; Cayenne ; Brazil. 



- 88. Xylocopa Augusti. 



Xylocopa Augusti, St. Farg. Hym. ii. 187, 2 ; Smith, 

 Cat. Hym. Ins., Apida3, ii. 360. 



This conspicuous insect is black, its pubescence black, 

 except the fringe of the abdomen, which is ferruginous ; 

 the abdomen beneath is dark rufo-piceous, wdth the apical 

 margins of the segments paler ; the wdngs brown, with a 

 bright gold and violet iridescence. Length eleven lines. 



Hab. — Brazil; South America (Rio Grande). 



