234 PROCEEDINGS OF THE ACADEMY OF [May, 



femora with the ventral margin broadly beaded with fuscous distad; 

 caudal tibiae with the spines and spurs annulate mesad with fuscous. 

 Ovipositor with the tips fuscous. 



cf (type). Length of body, 19.5 mm.; length of pronotum, 3; 

 greatest (caudal) width of pronotum, 4.4; length of tegmen, 19; 

 greatest width of dorsal field of tegmen, 3.9; length of caudal 

 femur, 12.8. 



9 (allotype). Length of body, 18 mm.; length of pronotum, 

 3.6; greatest (caudal) width of pronotum, 5; length of tegmen, 22.2; 

 greatest width of dorsal field of tegmen, 4.4; length of caudal femur, 

 15; length of ovipositor, 16. 



The type and allotype are the only individuals of the species 

 seen by us. It is evident that the male is in a recessive type of 

 coloration, the female in an intensive one. 



EXPLANATION OF PLATES I AND II. 

 Plate I. 



Fig. 1. — Ischnoptera crispuln new species. Wing of male (type). (X6.) 



Fig. 2. — Ischnoptera crispula new species. Pronotum of male (type). Dorsal 



view. (X6.) 

 Fig. 3. — Ischnoptera crispula new .species. Genital orifice of male (type). Caudal 



elevation. (Greatly enlarged.) 

 Fig. 4. — Ischnoptera crispula new species. Subgenital plate of male (type). 



Ventral view. (Greatly enlarged.) 

 Fig. .5. — Ischnoptera imparata new species. Wing of male (type). (X8.) 

 Fig. 6. — Ischnoptera im par ata new species. Pronotum of male (type). Dorsal 



view. (X6.) 

 Fig. 7. — Ischnoptera imparata new species. Genital orifice of male (type). Cau- 

 dal elevation. (Greatly enlarged.) 

 Fig. 8. — Ischnoptera imparata new species. Subgenital plate of male (type). 



Ventral view. (Greatly enlarged.) 

 Fig. 9. — Ischnoptera clavator new species. Wing of male (type). (X4.) 

 Fig. 10. — Ischnoptera clavator new species. Pronotum of male (type). Dorsal 



view. (X6.) 

 Fig. IL — Ischnoptera clavator new species. Genital orifice of male (type) . Caudal 



elevation. (Greatly enlarged.) 

 Fig. 12. — Ischnoptera clavator new species. Subgenital plate of male (type). 



Ventral view. (Greatly enlarged.) 

 Fig. 13. — Ischnoptera castanea Saussure. Genital orifice of male. Igarape-assii, 



Brazil. Caudal elevation. (Greatly enlarged.) 

 Fig. 14. — Ischnoptera castanea Saussure. Subgenital plate of male. Igarape- 



assu, Brazil. Ventral view. (Greatly enlarged.) 

 Fig. 15. — Carihlatta igarapensis new species. Pronotum of male (type). Dorsal 



view. (X6.) 

 Fig. 16. — Cariblatta igarapensis new species. Genital orifice of male (type). 



Caudal elevation. (Greatly enlarged.) 

 Fig. 17. — Cariblatta igarapensis new species. Wing of male (type). (X5.) 

 Fig. 18. — Cariblatta igarapensis new species. Subgenital plate of male (type). 



Ventral view. (Greatly enlarged.) 

 Fig. 19. — Chorisoneura parishi new species. Pronotum of male (type). Dorsal 



view. (X7.) 

 Fig. 20. — Chorisoneura parishi new .species. Tegmen and wing of male (type). 



(X7.) 



