330 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Figure 12. — Geographic variation in two characters in Boraria media. Upper map: dis- 

 tribution of gonopod types 1 (heavy stippHng) and 2 (oblique shading). Lower map: 

 distribution of broad vs. narrow body form in males, populations in which W/L ratio Is 

 less than 20.0% (heavy stippling) vs. populations in which this ratio is greater than 20.0% 

 (shading). 



