PIPILO. 409 
We have two skins from the vicinity of the city of Mexico acquired in 1867, con- 
cerning which, though referred to P. maculatus, we have always had some doubts as to 
whether they really belong to that species or not. They have a more olive shade on 
the upper plumage, and the wing-spots a greenish tint, and the edgings of the wings 
and tail are more olive-coloured than in more typical P. maculatus. In one specimen 
the campterium is yellow, in the other just tinted with that colour. We sadly require 
evidence of the changes of pluamge between adult and young and breeding and winter 
dress in this and the allied species; but we believe these specimens to be in the 
breeding-plumage of P. maculatus, those browner in colour and the spots purer white 
being in winter dress. 
We have placed P. submaculatus as a synonym of P. maculatus, as the differences 
relied upon seem all represented in the series before us. In view of the obvious varia- 
tions, probably of season and sex, noticeable in this species, we much doubt if the 
specific distinctness of P. submaculatus can be maintained. 
4. Pipilo megalonyx. 
Pipilo megalonyx, Baird, B. N. Am. p. 515, t. 731; Mex. Bound. Surv., Zool. ii. Birds, p. 17’. 
Pwilo maculatus, var. megalonyx, Baird, Brew., & Ridgw. N. Am. B. ii. p- 113°, 
Pipilo maculatus megalonyx, Coues, Key N. Am. B. ed. 2, p. 397 *. 
P. maculato certe persimilis, sed dorso postico nigricante cinereo haud brunneo forsan distinguendus. 
Hab. Norn America, Lower California, valleys of the Gila and Rio Grande? 4,— 
Mexico, San Pasqual (Schott), Saltillo (Couch 2). 
We have but little to say about this bird, which seems to be only doubtfully distinct 
from P. maculatus, and occurs along our northern frontier both in Arizona and in the 
valley of the Rio Grande. 
b. Caput fuscum, dorsum immaculatum, cauda unicolor haud albo terminata. 
5. Pipilo fuscus. 
Pipilo fuscus, Sw. Phil. Mag. new ser. i. p. 434°; Bp. Consp. Av. i. p. 4867; Dugés, La Nat. i. 
p- 140%; Scl. & Salv. P. Z. S. 1869, p. 361*; Sumichrast, Mem. Bost. Soc. N. H. i. p. 552°; 
Baird, Brew., & Ridgw. N. Am. B. ii. p. 121°. 
Pipilo fuscus, var. crissalis, Lawr. Mem. Bost. Soc. N. H. ii. p. 2777. 
Pipilo mesoleucus, Baird, Pr. Ac. Phil. 1854, p. 119°; Mex. Bound. Surv., Zool. ii. Birds, p. 18°, 
Pipilo fuscus, var. mesoleucus, Baird, Brew., & Ridgw. N. Am. B. ii. p. 125°. 
Pipilo fuscus mesoleucus, Belding, Pr. U.S. Nat. Mus. vi. p. 343"; Coues, Key N. Am. B. ed. 2, 
p-. 397". 
Supra griseo-fuscus, vertice vix rufescentiori; alis et cauda saturatioribus; subtus dilutior, abdomine medio 
albido, imo cum crisso et gutture ferrugineis, hoc nigricante striato; loris et ciliis albidis ; rostro corneo, 
pedibus corylinis. Long. tota 8-0, ale 3:8, caude 4:0, rostri a rictu 0-7, tarsi 1-0. (Descr. exempl. ex 
Mexico prope urbem. Mus. nostr.) 
Hab. Nortu America, New Mexico, Arizona, Texas 1° !2—Mexico 246, Santa Catarina in 
BIOL. CENTR.-AMER., Aves, Vol. I., October 1886. 52 
