THE CANADIAN ENTOMOLOGIST 145 



blue. As Friese notes, this has very nearly the general form of E 

 piliventris, with bigibbous scutellum. The mesothorax is shining, 

 with minute punctures, not very dense on disc. The mouth-parts 

 do not reach to the end of the abdomen. There is a minute, black 

 fleck in middle of scutellum. The labrum is broader than long, 

 the reverse being the case in E. piliventris; and the cream-coloured 

 band at lower sides of face extends broadly from orbits to labrum, 

 whereas in piliventris it forms an L-shaped mark. 



Hah. — San Bernardino, Paraguay, Oct. 4. (K. Fiebrig; U. 

 S. N. M.) This is very distinct from all species I have seen, but 

 the specimen appears to represent a colour-variety or race of E. 

 mandibiilaris . Friese's description of mandihularis omits some of 

 the salient characters of our insect, so it is possibly a different 

 species, to be called Euglossa bernard na. 



Euglossa variabilis Friese. 

 Friese separated E. variabilis as a species very closely related 

 to the common E. cordata L., but distinguished by the more shin- 

 ing, less densely punctured thoracic dorsum. He considered It to 

 be very variable, and named three varieties. Ducke, on reviewing 

 the subject, referred most of Friese's variabilis back to cordata, 

 but separated one of the varieties as a species, E. aziirea Ducke. 

 Since this appears to be Friese's E. variabilis var. cyanea, it is 

 presumably to be called E. cyanea (Friese). So far as I am able to 

 judge, E. variabilis (excluding cyanea) is sufficiently distinct for 

 recognition, and it even seems probable that the varieties deserve 

 specific rank. There is certainly much individual variation in 

 colour, but series collected at the same time and place present a 

 recognizable facies. 



Euglossa variabilis, var. mixta Fries 

 Females, collected by Aug. Busck in the region of the Panama 

 Canal, are labelled Tabernilla, July 21, and Cabima, May 21. 

 Another comes from Las Cascadas, collected by A. H. Jennings. 

 The abdomen is variably but always evidently suffused with copper- 

 red or carmine. The insects are a little larger and more robust than 

 the next variety. 



Euglossa variabilis, var. purpurea Friese. 

 Friese says the entire body is purple-red. The insects before 

 me are green, suffused with copper-red, but it seems probable that 



