354 COSTA RICAN EPIGOMPHUS (oDONATa) 



Figs. 8 to 10. — E. qnadracies, Rio Chirripo, C. R. 8. — Dorsal view of apex 

 of abdomen of cf of July 26, 1915. 9 to 10. — Dorsal and caudal views 

 respectively of head of 9 of July 25, 1915. 



Plate XIV 



Figs. 11 to 14, 18 to 22.— E. tumef actus, Florida Road, June 3, 1909, cf 

 and 9 ; in figs. 11-14, 18-19, the proximal end is upper in every case. 11 

 and 12. — Right third femora, anterior surface, 9 and cf respectively. 13 

 and 14. — Right third tibiae, anterior surface, 9 and c? respectively. 18 

 and 19.— Right third tarsi, anterior surface, 9 and cf respectively. 20. — 

 Dorsal view of apex of cf abdomen; d, denticles of inferior appendage. 

 21 and 22. — Dorsal and caudal views respectively of head of female; the 

 postgenal scars pgc, of Biolley's female have been added to fig. 22. 



Figs. 15 to 17. — E. subobtusus. 15. — Dorsal view of apex of abdomen 

 of cf , Juan Viiias, C. R.; the superior appendages of this individual are not 

 as widely distended as they probably are when mating. 16 and 17. — Dorsal 

 and caudal views respectively of head of female from south of Aguacaliente, 

 C. R. 



Plate XV 



Figs. 23 to 26. — E. verticicornis, Tuis, Costa Rica, type cf and allotype 9 • 

 23. — Inner dorsal oblique view of left superior appendages and left half of 

 inferior appendage cf; rs, base of right superior appendage ; .r', "downwardly 

 directed spine" of the inner (mesal) surface of the left superior appendage; 

 y, "forwardly curved spine" of the dorsal surface of the basal part of the 

 inferior appendage. 24. — Dorsal view of apex of abdomen of d^, appendages 

 somewhat distorted; y, as in fig. 23. 25 and 26. — Dorsal and caudal views 

 respectively of head of female; .t, linear depressions mentioned' in text, 

 page 340. 



Figs. 27 to 30. — E. armatus. 27 and 28. — Ventral and left profile views 

 respectively of apex of abdomen of cf, copied from Dr. Ris's figures 92 and 

 93; left superior appendage removed in figure 28; magnification not stated. 

 29 and 30. — Dorsal and caudal views respectively of the head of 9 from the 

 Florida Road of June 5, 1909; the superior ocular cicatrices (soc) from the 

 female of June 3, have been added to fig. 29. 



