316 Journal New York Entomological Society, [^'o'- xxir. 



brown hair behind ; middle basitarsi on inner side with a long hollowed (boat- 

 shaped) structure, which is conspicuously transversely striated ; hind femora 

 with white and brown hair; hind tibiae with a very large black scopa, which, 

 also covers the basitarsus ; abdomen shining black; first segment with much 

 yellowish-white hair, extending right across ; second and third with very- 

 scanty short black hair; fourth with much black hair, and a little pale at 

 apex laterally ; apex with red hair in middle and white at sides. 



Habitat. — Guayaquil, May-June, 1913 (Bntcs). 



C. nitida Smith was described from Honduras, and according to 

 Smith's brief description differs from geminata in the two basal joints 

 of flagellum wholly black (second, and apex of first, red beneath \n 

 geminata), middle and hind legs with only black hair, apex of 

 abdomen with only fusco-ferruginous hair. Also, C. nitida is said to 

 have white teguke. C. confinis Perez is evidently very close to C 

 nitida. but is not geminata. In the Argentine the same group is repre- 

 sented by C. nigriz'entris Burmeister. I suppose geminata to be a 

 subspecies of nitida-, but it remains to be determined whether Smith's 

 species has the peculiar structural characters observed in geminata. 



A feature of the venation deserves notice. In C. nitida geminata 

 the hind wings have the median cell obliquely truncate at end, and the 

 transversomedial nervure with its upper end vertical, forming two 

 right angles. In C. rlwdopus Ckll. the hind wings have the median 

 cell obtusely pointed at end (the free end of cubital nervure lacking) 

 and the transversomedial with its upper end oblique. 



Melitoma euglossoides Lep. & Scrv. 



Guayaquil, May-June, 1913, 18 males (Brucs) ; Guayaquil, 2" 

 males, 2 females (v. Buchzt'ald; Alfken 16). 



All these have the scape red, and belong to the South American 

 race described by Smith as fidvifrons. The northern race (Guatemala 

 City, Rodriguez; Quirigua, Guatemala, W. P. CockercU; Rio Nautla, 

 Mexico, Townsend; Comal Co., Texas) has the scape black, and 

 must be called M. euglossoides margiuella (Crcsson). 



Xenoglossa citrullina Cockcroll. 



Guayaquil, May-June, 1913 (Brues). One male. 

 Previously known only from Peru. 



Florilegus pavoninus new species. 



Female. — Length about 1 1 mm., robust, black, the hind tarsi ferruginous 

 apically, the abdomen with strong green and crimson tints ; mandibles with a 



