8o University of Michigan 



PLATE VIII 



Male abdominal appendages ; all figures drawn by C. H. Kennedy 

 but figures 90 and 93. 



Figures 80 and 81, oblique dorsal and profile views respectively of 

 tbe abdominal appendages of Hetcragrion consols, male, collection 

 ^I. C. Z. ; figures 82 and 83, same of Hetcragrion bcschkii, male, col- 

 lection M. C. Z. ; figures 84 and 85, same of Hetcragrion erythrogas- 

 fruin, male, Alajuela, Costa Rica, 3100 feet, September 2, 1909, P. P. 

 Calvert; figures 86 and 87, same of Hetcragrion albifrons, male, Peralta, 

 Costa Rica, September 9, 1909, P. P. Calvert ; figures 88 and 89, same 

 of Hetcragrion alienum, type male ; figure 90, oblique dorsal view of 

 the abdominal appendages of Hetcragrion chrysops, male, collection 

 M. C. Z. ; figures 91 and 92, oblique dorsal and profile views respectively 

 of the abdominal appendages of Hetcragrion majns, male, Cachi, Costa 

 Rica, collection P. P. C. ; figure 93, dorsal view of left superior ap- 

 pendage of Hetcragrion aequatorialc, male, collection U. S. Nat. 

 Museum, for comparison with Menger's drawing, figure 131. 



