82 University of Michigan 



PLATE IX 



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

 but figures 94, 95 and 96. 



Figure 94, oblique dorsal view of tbc abdominal appendages of 

 Hcteragrion calcnduhtm, type male; figure 95, same of Heteragrion 

 tnitratiim, type male; figure 96, same of Hcteragrion percgrinum, type 

 male; figures 97 and 98, oblique dorsal and profile views respectively 

 of the abdominal appendages of Heteragrion simiilatum, type male; 

 figures 99 and 100, same of Oxystigma petiolatum, male, Tumatumari, 

 British Guiana, February 9, 1912 ; figures loi and 102, same of same 

 species, Igarapi Assei, Para, Brazil, collection Cornell University; 

 figures 103 and 104, same of Oxystig)na cyanofrons, tj'pe male. 



