no. 36ig GENUS EUPARIXIA— WOODRUFF AND CARTWRIGHT 5 



range of E. formica. E. costaricensis Hinton occurs within the range 

 of A. cephalotes, whose range is given above, and A. colombica 

 Guerin, which has been recorded from Colombia, Panama, Costa 

 Rica, and Guatemala. E. moseri, new species, undoubtedly has a 



^P Euparixia duncani flrown 



Ttf Euparixia mcseri n. sp. 



\J Euparixia bruneri Chapin 



y^ Euparixia formica Htn. 



VV Euparixia costarioeneis Htn. 



Fig. 1 



Acromyrmex versicolor (Perg.) 



Ld 



Atta insularie Guer. 



Atta colombica Guer. 



Atta cephalotes (L.) 



Atta mexicana Smith 



Atta texana Buck t\\;X;J 



Figure 1. — Distribution of the leaf-cutting ants of the genus Atta and of the species Acro- 

 myrmex versicolor Pergande, and the scarab beetles of the genus Euparixia in North 

 America. (Drawn by R. E. Woodruff.) 



wider range than the few areas now known in southwestern Louisiana, 

 since its host, A. texana, occurs over much of the eastern two-thirds 

 of Texas also. Although the host is not established for E. duncani, 

 we suspect it is Acromyrmex versicolor (Pergande). Creighton (1950) 



