erage, 92).* Had. — Mexico (including Lower Eio Grande Valley in
Texas) and Guatemala.
The principal references to var. erythrocercus are the following : —
Tyrannula irritabilis, Bonap., Consp. I, 1850, 189. Supposed to belong here from quotation of Azara. " South America." Not Tyrannus irritdbilis, Vieill. !
Myiarchus crinitus, b. var. irritabilis, Coues, P. A. N. S. July 2, 1872, 65 (Central and South America, Paraguay, Rio Parana, Bahia, Venezuela, Yucatan, Guate- mala, Costa Rica).
Myiarchus crinitus var. irritdbilis, B. B. & R., Hist. N. Am. B. II, 1874, 331 (Paraguay to Costa Rica).
Myiarchus cnjthrocercus, Scl. & Salv.,P. Z. S. 1868, 631, 632 (Venezuela); Nom. Neotr. 1873, 52.— 1 Semper, P. Z. S. 1871, 271 (Sta. Lucia, W. I.!) ,* 1872, 650.
Pyrocejphalus erythrocercus, Gray, Hand-list, 1, 1869, No. 5522 (s. g. Myionax. Quotes "crinitus, p., Hartl. ; irritdbilis, p., Bp. ; ferox $ , Burm.").
Pipperie gran-bois, St. Croix vernac. (fide Semper, Z. c).
112. Myiarchus cine rase ens, Lawr.
Only two specimens of this variety were taken. — (M. mexieanus, Dres- ser, Ibis, 1865, 473.)
113. Pyrocephalus rubiueus var. mexicanus, Sclat.
Resident, but more abundant in summer than in winter. During the breeding season, the male frequently utters a peculiar twittering song while poised in the air about thirty feet from the ground ; during the song, it frequently snaps its bill as if catching insects. Its note of anger and alarm is a mew. Except during the breeding season, the birds are decidedly shy. The nests are usually placed upon horizontal forks of ratama-trees, growing upon the edge of a prairie, and rarely more than sis feet from the ground. They bear considerable resemblance to nests of the Wood Pewee in appearance and in the manner in which they are saddled to the lirnb ; the bottoms are made of small twigs, over which
- Eighteen specimens, as follows : —
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a a no 3 C3 § CD W S P Locality. Date. a "e3 1 GO © a a o 00 9100 29690 — ad. — ad. — ad. d ad. c? ad. — ad. cfad. ? ad. d ad. mf ad. -ad. cfad. tfad. tfad. — ad. ?ad. c? ad. — ad. U.S. U.S. u. s. U.S. R.R. R.R. RR. U.S. U.S. U.S. U.S. U.S. U.S. U.S. U.S. U.S. U.S. U.S. " Mexico " (If. coop&ri, Baird, B. N". Am.).. Mexico
4.10 4.05 4.10 4.30 4.30 4.05 4.00 4.25 3.85 4.10 4.15 4.10 4.40 4.05 4.45 4.05 4.00 4.05 4.20 4.20 4.40 4.05 4.25 4.55 4.00 4.30 4.25 4.20 4.60 4.15 4.60 4.20 .69 .62 .70 .70 .72 .65 .75 .60 .72 .68 .68 .68 .75 .73 .82 .65 .90 8ft 373C4 Tres Marias, Western Mexico Jan. —,1865 9S 52810 95 1182 do .95 1U39T Dec. 18,1868 Dec. 24,1868 Dec. 16,1868 May 5, 1869 Apr. 27, 1869 Oct. 8, 1869 Apr. 11,1871 May 27, 1871 May 27, 1871 qo 57040 58844 53815 59617 73631 73632 73633 42337 .92 .90 .88 .92 .88 .95 .95 .98 95 71138 Fort Brown, Texas May 10, 1877 Apr. 1,1876 90 73022 do 49312 Central Guatemala 4.15 4.15 .62 90
