LIST OF HOMOPTEEOUS INSECTS. 499 



GeiiQS 7. PTERYGIA. 



Centrotus, Fahr. 



Oxyrhachys, Germ. 



Pterygia, De Laporte, Ann. Soc. Ent. Fr. i. 



Notocera, Aimjot et Serv. Hist. Nat. Hem. 536, 427. 



Group 1. Fairm. Ann. Soc. Ent. Fr. 2me Serie, iv. 263. 



1. Pterygia aeietixa. 



Pterygia arietina, Fairm. Ann. Soc. Ent. Fr. 2me Serie, iv. 263, 1. 

 Oxyrachys arietina, Germ. Silb. Rev. Ent. iii. 308. 



a, b. Brazil. Presented by John Miers, Esq. 

 c, d. Brazil. From Mr. Stevens' collection. 



2. Pterygia trepida. 



Pterygia tripodia, Fairm. Ann. Soc. Ent. Fr. '2ine Serie, iv. 263, 2, 

 pi. 7, f. 30. 



Cayenne. 



3. Pterygia cruciata. 



Pterygia cruciata, Fairm. Ann. Soc. Ent. Fr. 2me Serie, iv. 264, 3. 

 Centrotus cruciatus, Fabr. Si/st. Rhijn. 18, 8. Stoll, Cic. 22, pi. 2, 



f. 8, 61, pi. 15, f. 77. Perty, Del. An. Art. Bras. 179, pi. 35, 



f. 14. 

 Notocera cruciata, Amyot et Serv. Hist. Nat. Hem. 536, 427, 1. 



Cayenne. 



4. Pterygia quadridexs. 



Pters'gia quadridens, Fairm. Ann. Soc. Ent. Fr. 2m€ Serie, iv. 

 264,' 4. 



Cayenne. 



5. Pterygia crassicornis. 



Pterygia crassicornis, Fairm. Ann. Soc. Ent. Fr. 2me Serie, iv, 

 264, 5. 



Brazil. 



