74 E. B. Williamson 



PLATE IV 



Figures ir-iS, ventral views of third abdominal segments; Figure i6, ventral vitw 

 of second abdominal segment; Figures 17-20, hamular processes. AH drawings by 

 Dr. C. H. Kennedy. 



Figure II, Gyjtacantha nervosa, male, Palma Sola, Venezuela, March 6, 1920; 

 Figure 12, G. nervosa, female, Palma Sola, Venezuela, March 4, 1920; Figure 13, 

 Triacanthagyna ditsleri, allotype female; Figure 14, T. trifida, female, Samana, Hayti, 

 M. C. Z. ; Figure 15, T. caribbea, allotype female; Figure 16, Gynacantha klagesi, 

 allotype female, to show elevated lateral carinse; Figure 17, T. ditsleri, type male; 

 Figure 18, T. caribbea, type male; Figure 19, T. trifida, male, Samana, Hayti, M. C. Z. ; 

 Figure 20, T. satvrus, male. La Fria, Venezuela. 



