230 POEMICAEnD^. 



2. Myrmeciza Isemosticta. (Tab. LT. fig. 1.) 



Myrmeciza l(smosticta, Salv. P. Z. S. 1864, p. 582'; \d>67, p. 145^; Lawr, Ann. Lye. 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 nigricaati-plumbeis, hoc dilutiore, mento 

 efc 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, ate 2-5, 

 caudae 1"9, rostri a rictu 0-9, tarsi l-l. (Descr. exempl. typ. ex Tucurriqui, Costa Hica. Mus. nostr.) 



Eai. Costa. Rica, Txicurriqui {Arci ^ ^) ; Pakama, Sante Fe {Arc6 ^). 



The two specimens sent us by our collector Arce, 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 a species M. Icemosticta is a very distinct one, and has no near allies except 

 M. 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 M. intermedius *. 



3. Myrmeciza stictoptera. 



Myrmeciza stictoptera, Lawr. Ann. Lye. N. Y. viii. p. 132'; ix. p. 109^; Cherrie, Pr. U. S. Nat. 

 Mas. xiv. p. 532 \ 



M. Icemostictce simiUs, sed paulo major, mento et gula nigris immaculatis, humeris quoque albis distinguenda. 

 (Descr. maris exempl. typ. ex Angostura, Costa Eica. JJ. S. Xat. Mus.) 



Hab. Costa Rica, Angostura {Carmiol^ ^), San Carlos {Alfaro ^). 



There can be no question that this species is distinct from M. Icemosticta, the types 



* There is a specimen in the British Museum of a species closely allied to 21. Icemosticta 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 c). 



M. lcemogtiet(B 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. EcTJADOE, Intac (C. BucMey). 



This bird seems clearly distinct, both from M. lamosticta and M. stictoptera, the spotted throat separating it 

 from the latter bird. It has nothing to do with " Myrmeciza " exsul. 



