LIST OF HOMOPTEKOUS INSECTS. 127 



wings grayish. Length of the body 4 — 4^ lines; of the wings 

 4h — oh: liues. 



a. Constancia, Province of Rio. Presented by the Rev. Hamlet 

 Clark. 



Genus SPHONGOPHORUS, Cat. Horn. p. 496. 



Sphongophorus ballista, Cat. Horn. p. 497. 

 a — d. Mexico. From M. Salle's collection. 



Sphongophorus paradoxa, Cat. Horn. p. 497. 

 a, b. Rio Janeiro. Presented by J. Gray, Esq. 



Genus PTERYGIA, Cat. Horn. p. 499. 



Pterygia quad ri dens, Cat. Hum. p. 499. 

 a, b. Ega. From Mr. Bates' collection. 



Pterygia tripodia. Cat. Horn. p. 499. 

 Stoll's figure, pi. 15, f. 77, is of this species, not of P. cruciata. 

 a. Villa Nova. From Mr. Bates' collection. 



Pterygia ckassicornis, Cat. Horn. p. 499. 

 a, b. Ega. From Mr. Bates' collection. 



Pterygia hispida. Cat. Horn. p. 500. 



a. Santarem. From Mr. Bates' collection. 



This specimen differs somewhat from the description of P. his- 

 pida ; the prothorax behind the lateral horns has three testaceous 

 stripes, and two more hindward testaceous bands ; the legs also are 

 partly testaceous. 



Pterygia pileata, Cat. Ham. p. 501. 

 a, 6. ? 



