250 FORMICARIIDA. 
2. Myrmeciza lemosticta. (Tab. LI. fig. 1.) 
Myrmeciza lemosticta, Salv. P.Z.S. 1864, p. 582 ‘; 1867, p. 145°; Lawr. Ann. Lyc. N. Y. ix. 
p- 109°; Scl. Cat. Birds Brit. Mus. xv. p. 280 * 
Supra badia, capite toto et corpore subtus a gula ad medium ventrem nigricanti-plumbeis, hoc dilutiore, mento 
et gula nigris, plumis singulis vitta transversa subapicali angusta alba; abdomine imo et hypochondriis 
dorso concoloribus; alarum tectricibus mediis et minoribus cum campterio nigris, apicibus albo terminatis, 
tectricibus majoribus badiis ferrugineo terminatis, plaga dorsali celata magna alba, hoc colore extrorsum 
nigro marginato: rostro nigro, mandibula pallida, pedibus obscure corylinis. Long. tota 5:3, ale 2:5, 
caude 1°9, rostri a rictu 0°9, tarsi 1-1. (Descr. exempl. typ. ex Tucurriqui, Costa Rica. Mus. nostr.) 
Hab. Costa Rica, Tucurriqui (Arcé!®) ; PANAMA, Sante Fé (Arcé 2). 
The two specimens sent us by our collector Arcé, one from Costa Rica, which we 
now figure, the other from Panama, are the only ones, so far as we know, in existence. 
None were in the United States National Museum when Mr. Lawrence wrote his list 
of Costa Rica birds, and it would appear from Mr. Zeledon’s lists that he has not yet 
met with the bird. Its rarity, therefore, seems assured. 
As aspecies VM. lemosticta is a very distinct one, and has no near allies except 
WM. stictoptera and the bird described below. With a general resemblance to Myrme- 
lastes intermedius it has many points of distinction, some of which are of generic value. 
The bill is less stout, and the feathers of the forehead and lores more closely set ; there 
is hardly any bare space behind the eye, and there is a large concealed white dorsal 
patch wholly absent in UW. intermedius *. 
3. Myrmeciza stictoptera. 
Myrmeciza stictoptera, Lawr, Ann. Lyc. N.Y. viii. p. 182"; ix. p. 109°; Cherrie, Pr. U.S. Nat. 
Mas. xiv. p. 582°. 
M. lemosticte similis, sed paulo major, mento et gula nigris immaculatis, humeris quoque albis distinguenda. 
(Descr. maris exempl. typ. ex Angostura, Costa Rica. U. S. Nat. Mus.) 
Hab. Costa Rica, Angostura (Carmiol}*), San Carlos (Ad/aro *). 
There can be no question that this species is distinct from JM. lemosticta, the types 
* There is a specimen in the British Museum of a species closely allied to M. lemosticta from Ecuador, 
which appears to be unnamed. We propose to call it :— 
Myrmeciza nigricauda, sp n. 
Myrmeciza exsul, Scl. Cat. Birds Brit. Mus. xv. p. 279 (specimen ¢). 
M. lemosticte similis et gula eodem modo albo maculata, sed omnino saturatior, dorso nigricanti-cinnamomeo, 
cauda fere nigra, maculis tectricum alarum majoribus ; plaga magna dorsali celata alba. 
Hab. Ecuanor, Intac (C. Buckley). 
This bird seems clearly distinct, both from IM. lemosticta and M. stictoptera, the spotted throat separating it 
from the latter bird. It has nothing to do with “ Myrmeciza” exsul. 
