314 TANAGRIDA. 
In our region seven species occur, three of which are peculiar to Mexico and 
Guatemala; three other peculiar species are found in Costa Rica and Panama, and the 
only widely ranging one is C. albitemporalis, which spreads from Costa Rica to Bolivia. 
The Central-American members of Chlorospingus are all very homogeneous; but 
some of the South-American species, such as the more slenderly. built C. verticalis, are 
decidedly aberrant. The stouter more robust species with which we here have to 
do are very Fringilline in their general appearance; the bill is conical and stout, but 
less than in the next genus; the maxillary notch is almost obsolete; the wings are 
moderately long, the third, fourth, and fifth quills being nearly equai; the tail in the 
more typical species is moderately long and slightly rounded; olive is the prevailing 
hue of the plumage, and the sexes are alike in colour. 
A. Macula postocularis alba. 
1. Chlorospingus ophthalmicus. 
Arremon ophthalmicus, DuBus, Bull. Ac. Brux. xiv. pt. 2, p. 106°. 
Chlorospingus ophthalmicus, Scl. P. Z. S. 1856, pp. 89 °, 802°; 1859, pp. 364°, 377°; Cab. J.f. Orn. 
1866, p. 162°; Sumichrast, Mem. Bost. Soc. N. H.i. p.5497; Salv. Cat. Strickl. Coll. p.196°. 
Chlorospingus leucophrys, Cab. Mus. Hein. 1. p. 189”. 
Supra oleagineo-olivaceus, pileo et capitis lateribus saturate brunneis, plaga suboculari nigricante, macula post- 
oculari alba, loris albidis ; subtus gula et abdomine medio albis, pectore, hypochondriis et crisso flavescenti- 
olivaceis ; rostro nigro, pedibus corylinis. Long. tota 5:8, ale 2°9, caude 2:4, rostri a rictu 0-55, tarsi 
0-85. (Descr. exempl. ex Jalapa, Mexico. Mus. nostr.) 
Hab. Mexico!?°® (le Strange), San Pedro (Galeotti ®), Cordova (Sallé? *), Jalapa ? 
(De Oca*, Hoge), Totontepeque (Loucard®), temperate and hot regions of Vera 
Cruz (Sumichrast ®). 
We have been accustomed hitherto to include the Guatemalan Chlorospingus of this 
form under the name of C. ophthalmicus, but we now find on closer examination that 
the brown-headed Mexican bird is peculiar to that country, and that in Guatemala two 
forms are found which are not only distinct from one another, but also from the bird 
now under consideration. 
Chlorospingus ophthalmicus is a well-known bird in Mexico, chiefly in the upland 
forests, but is also found in the hot country, according to Sumichrast’. It only occurs 
in the mountains of the southern parts of the Republic, where it has been met with by 
many travellers. 
2. Chlorospingus postocularis. 
Chlorospingus postocularis, Cab. J. f. Orn. 1866, p. 1637. 
Hab. Guatematat, Volcan de Fuego (0. 8. & F. D. G.). 
The dark uniformly grey head distinguishes this species from C. ophthalmicus of 
