372 Mr. T. D. A. Cockerell — Descriptions and 



perhaps, be a desert subspecies of lagopoda ; it certainly 

 differs from the three species of the lagopoda group described 

 by Morawitz. 



Melipona orbignyi, Guer. 



Strand (Zool. Jahrb. 1910, p. 556) has discussed this 

 species, indicating the confusion which has arisen regarding 

 it. I have a male, which appears to be quite correctly 

 determined, from F. Smith's collection. I have also before 

 me two workers from Rosario, Argentina (Alfken coll. 33) ; 

 they differ from the male by the black clvpeus, with a little 

 reddish around the edges, and the black hair of vertex, 

 cheeks, and legs. These workers are easily distinguished 

 from those of M. quinquefasciata, Lep., from Asuncion, 

 Paraguay [Schrottky) , by the black hair just mentioned, the 

 lack of a clypeal stripe and of lateral face-marks, and the 

 very broadly interrupted band on first abdominal segment. 



Mesocheira bicohr (Fabr.). 



Three from Guayaquil, Ecuador [v. Buchwald ; Alfken 

 coll. 11), represent a variety with the abdomen green, 

 varying from yellowish green to peacock-green. The variety 

 eli~abelhce, Ckll., from the mountains of Ecuador, is not 

 precisely the same, but 1 now doubt whether it represents a 

 distinct geographical race. 



Mesoplia decorata (Smith). 



Guayaquil, Ecuador {v. Buchwald] Alfken coll. 31). De- 

 scribed from Brazil. 



Triepeolus buchwaldi (Friese). 



Guavaquil, Ecuador, 1 <$ , 1 ? (v. Buchwald; Alfken 

 coll. 12). 



The Epeolus buchwaldi, Friese, is a typical member of the 

 North-American genus Triepeolus. It is very similar to 

 T. sublunatus, Ckll. 



Crocisa lamprosoma, Boisduval. 



New South Wales (Nat. Mus. Victoria, 119) : "presented 

 by B. F. Hill, Windsor, 12. 97" (Nat. Mus. Vict. 120). 



I am not quite sure whether the specimen last cited was 

 collected at Windsor or not ; some of the labels from the 

 Victorian Museum seem to refer to the residence of the 



