MYRMELASTES. 227 
and place in Myrimelastes. This involves a change of name, and we propose to call 
Mr. Lawrence’s bird WM. lawrencit. 
3. Myrmelastes intermedius. (Myrmeciza immaculata, Tab. LI. figg. 26, 
3 2.) . 
Myrmeciza exsul, Cassin, Pr. Ac. Phil. 1860, p. 191 (?) (nee Sclater)*; Lawr. Ann. Lyc. N. Y. 
Vil. p. 825°. 
Myrmeciza immaculata, Scl. & Salv. P.Z.S. 1864, p. 357°; Salv. P.Z.S. 1870, p. 195*; Lawr. 
Ann. Lyc. N. Y. ix. p. 109°; Boucard, P.Z.S. 1878, p. 61°; Nutting, Pr. U.S. Nat. Mus. 
vi. p. 4057; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 115 (partim) °; Scl. Cat. Birds 
Brit. Mus. xv. p. 279°. 
Myrmeciza intermedia, Cherrie, Pr. U.S. Nat. Mus. xiv. p. 345 *° ? 
Supra obscure badius ; capite toto et corpore subtus usque ad medium ventrem nigricanti-plumbeis, pileo et gula 
obscurioribus, ventre imo dorso concolore, campterio alari albo: rostro nigro, pedibus obscure corylinis. 
Long. tota 5-5, alee 2°6, caude 1°75, rostri a rictu 0-9, tarsi 1:15. 
@ mari similis, sed pileo obscure badio tincto, gula tantum plumbea, abdomine et pectore dorso concoloribus. 
(Descr. maris et femine exempl. typ. ex Panama, Mus. nostr.) 
Hab. Nicaragua, Los Sabalos ( Nutting’); Costa Rica, Pacuare °, Angostura °, La Balsa 
(Carmiol), San Carlos, San Mateo (Boucard ®), Jimenez (Zeledon ®), Carillo (C.F 
Underwood); Panama, Bugaba (Arcé +), Lion Hill Station (Jd‘Leannan ? °), Chepo 
(Arcé), Turbo (Wood *). 
This species is closely allied to Myrmeciza easul of Colombia *, from which it differs 
in having the wing-coverts unspotted. Panama specimens were at first referred to the 
southern form ! 2, but were separated therefrom by Sclater and Salvin in 1864, under 
the name of Myrmeciza immaculata*, which name must again give way, as there is 
already a species called immaculatus in the genus now used. 
The range of this bird has now been traced through the State of Panama and Costa 
Rica to Eastern Nicaragua 7, Mr. Nutting having met with it at Los Sabalos’ on the 
Rio San Juan del Norte which drains the great lake. Here he states that I. intermedius 
is common, and lives upon the ground in the dense forest. Mr. Wood! noticed this 
bird in the thick and dry parts of the forest at Turbo on the Isthmus of Darien in some 
* In Mr. Sclater’s original description (P. Z. S. 1858, p. 540) this species is assigned to Panama (Delattre) 
and Nicaragua, but it almost certainly lives further south. 
y If Mr. Cherrie’s Myrmeciza intermedia” is distinct from M. immaculata, which seems to us very doubtful, 
the range of VM. immaculata must be further curtailed, and it must have a new name. Mr. Cherrie gives it as 
extending from Panama to Talamanca (S8.E. Costa Rica), that of M. intermedia from Panama and the Atlantic 
lowlands of Costa Rica (7.e. inclusive of Talamanca) to Nicaragua. Thus these two supposed forms are found 
together over a considerable area. We have not seen authentic specimens of M. intermedia, but our single 
adult male from Costa Rica, which ought to be of this form, seems absolutely undistinguishable from the 
Panama types. The first primary is not edged with white in any of our Panama birds, nor can the under 
‘ wing-coverts be described as white—both characters, according to Mr. Cherrie, of M. immaculata. 
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9 
