233 



These blue ' Bishop ' Tanagers are very puzzling, and I confess I 

 am as yet quite unable to arrange them satisfactorily. After sepa- 

 rating the true * episcopus ' and * ccelestis ' (which are clearly di- 

 stinct) and the large South BraziUan ' cyanoptera ' (which may also 

 be recognized without much difficulty), there remain four or five 

 birds with different names attached to them varying a good deal in 

 the amount of blue on the wings, but not othervpise presenting very 

 appreciable differeuces. At present I am inchned to refer them to 

 two species — a South American bird with the lesser wing-coverts of 

 a more or less violet tint — and a Central American and Mexican 

 species with these parts deep blue — likę the South Brazilian T. cya- 

 noptera. The former bird is common in collections from Bogota 

 and Trinidad, and seems to range so far south as the Amazon at 

 Para. The latter extends from the north coast of New Grenada 

 through Central America as far north as the province of Vera Cruz, 

 whence specimens have lately been brought by M. Sall^. 



4. Tanagra diaconus. 



Tanagra {Aglaia) diaconus, Less. R. Z. 1842, p. 175. 

 Calliste diaconus, Gray, Gen. p. 466. sp. 29. 

 Tanagra episcopus, Bp. P. Z. S. 1837, p. 116. 

 Tanagra diaconus, Sclater, P. Z. S. 1856, p. 142. 

 Tanagra cyanilia, Bp. Notės Orn. p. 62 ? 

 Thraupis glaucocolpa, Cab. Mus. Hein. p. 28 ? 



Ccerulescenti-cana : dorso toto obscuriore : uropygio vix ceerules- 

 cente : alis caudaąue nigris cceruleo limbatis : tectricibus ala- 

 rum minoribus leetissime cceruleis. 

 Long. totą 6*2, alae 3*5, caudse 2"5. 



Hab. South Mexico, Cordova {Sallė) ; Guatimala {Bp.) {Con- 

 stancia) ; Nicaragua, Realejo (Less.) ; Chiriqui (Bridges) ; New 

 Grenada, S. Martha {Verreaux). 



5. Tanagra cyanoptera. 



Tanagra brasiliensis varia, Briss. Orn. iii. p. 18 (?). 



Tanagra sayaca, Linn. S. N. i. p. 316 (?) ; Max. Beitr. iii. 484 

 {certe). 



Loxia virens, Linn. S. N. i. p. 303 (?). 



Tanagra virens, Strickl. Ann. N. H. xx. 332 (certė). 



Lindo saihobi, Azar. Pax. i. p. 370. 



Saltator cyanoptera, Vieill. N. D. d'H. N. xiv. p. 104 ; Enc. 

 Mėth. p. 



Tanagra episcopus, Hartl. Ind. Az. p. 6 ; d'Orb. Voy. p. 274 ; 

 Sw. Orn. Dr. pi. 39 (adult). 



Tanagra inornata, Svv, Orn. Dr. pi. 40 (juv.) ; Gray, Gen. p. 364. 

 sp. 8 ; Bp. Consp. p. 238. 



Tanagra argentata, Gray, Gen. p. 364. sp. 6. 



Tanagra preelatus, Less. Tr. d'Orn. p. 463. 



Tanagra cyanoptera, Bp. R. Z. 1851, p. 1/0; Note s. 1. Tang. 

 p. 21. 



