164 MNIOTILTIDA. 
species, he did not use it in a full generic sense, but left them in Cardellina, following 
previous custom. 
The slenderer bill, the greater development of the rictal bristles, and the shorter and 
more rounded wings of Ergaticus, as compared with Cardellina, as well as the pecu- 
liarity of the style of its coloration, we think entitle the former to full generic rank ; 
and we thus treated it in the ‘ Nomenclator Avium Neotropicalium.’ 
Two species constitute this genus, one of which is peculiar to the uplands of Mexico, 
the other to similar districts in Guatemala. 
1. Ergaticus ruber. 
Setophaga rubra, Sw. Phil. Mag. new ser. i. p. 8368*; Bp. P. Z. S. 1837, p. 1187? 
Cardellina rubra, Scl. P. Z. 8. 1856, p. 292°; 1858, p. 299*; 1859, pp. 363°, 374°; 1864, p. 173”, 
Baird, Rev. Am. B. i. p. 264°; Dugés, La Natur. i. p. 140°; Sumichrast, M. Bost. Soc. — 
N. H.i. p.546"°; Finsch, Abh. nat. Ver. z. Bremen, 1870, p. 829”. 
Sylvia miniata, Lafr. Mag. Zool. 1836, cl. ii. t. 54”. 
Parus leucotis, Giraud, Sixteen B. Texas, t. 4. f.1™. 
Sylvia argyrotis, Ill., fide Bp. Consp. i. p. 8312™. 
Ruber, alis caudaque fuscis rubro marginatis, genis et subalaribus sericeo-albis; rostro et pedibus pallide 
corylinis. Long. tota 4:4, ale 2-4, caude 2-4, tarsi 0-7, rostri a rictu 0-5. (Descr. maris ex Oaxaca» 
Mexico. Mus. nostr.) 
© mari similis. 
Juy. cinnamomeo-fuscus rosaceo vix tinctus, genis sericeo-griseis. (Descr. exempl. ex Mexico. Mus. nostr.) 
Hab. Muxico, Mazatlan (Grayson |), Valladolid (Bullock 1), valley of Mexico ( White’, 
le Strange, Dugés®), Mirador (Sartorius *), Orizaba (Sumichrast §), alpine region of 
Vera Cruz (Sumichrast'), El Jacale (Sallé*), Jalapa (de Oca*), Llano verde , 
Totontepec ®, and La Parada * (Loucard), Oaxaca (Fenochio). 
This species was first described by Swainson, in 1827, from a specimen sent from 
Mexico by Bullock!; but it is quite possible that examples of the same bird, called 
Sylvia argyrotis by Lliger, in the Berlin Museum, are of still older date. Lafresnaye, 
who seems to have overlooked Swainson’s short but important paper, in 1836 re- 
described and figured the bird under the name of Sylvia miniata, using the title 
Swainson had chosen for the Setophaga which now stands as S. miniata. Again, in 
1840 Giraud figured it, in his ‘ Descriptions of Sixteen New Species of North-American 
Birds from Texas,’ as Parus leucotis, a name certainly applicable to E. ruber; but the 
locality ‘“‘ Texas” remains as yet unconfirmed. In 1837 Bonaparte, using Swainson’s 
name, applied it to a bird said to have been brought from Guatemala by Colonel 
Velasquez”. This, we should have thought, would most probably have been the next 
species, EL. versicolor; but the description “rubra, alis caudaque fuscis, genis albo 
sericeis,” points rather to H. ruber than to £. versicolor. We hesitate, however, to 
admit Guatemala within the range of £. ruber. 
