TiioniiMD.K — Tiiio iirMMixiMURDs. ^ryj 



• 



Wiiifr, l.Go; tail, l.'JO; l)ill. .41. Goiirct tliill velvety-crimson, the 

 featlu'is ot.-liraceous !)cneatli the surface. Outer primary ajipareiilly 

 with its attenuated tip curved iiiwanl. I/ab. Costa liica . \av. jln mm uln } 

 (• Feathers of the metallic },'or<,'et much eloni^ated laterally. 



8. rufus. Aljove chietly ru!ous, overlai<l hy yreeu (except in S. srintil/a, 

 whicli is almost wholly j.Tt.c'u ahov.-) ; tail-feathers rufous with a shaft- 

 streuiv of dusky. (lor<,'cl liery red. Attenuated tip of outer primary curvrd 

 inwards. 



Win;,', l.GO; tail. l.-'lO; hill^ .Pm. Rufous prevailiuL'' aI>ove; ,iror<:et 

 very lu-illiant. JIuh. Western I'rovince of North America, from East 

 Humboldt Mountains to the Pacitic. North to Sitka, south to Mira- 

 dor ............ var. rufus. 



Winjr, 1.35; tail, 1.00 to 1.10; bill, .42. Continuous preen above; 

 goru'et not brilliant, but with a dusty appearance. Tail less graduated. 

 Hab. Costa liica and Chiriqui var. srintilla." 



Selasphorus rufas, Swaixson. 



BVFOUS-BACKED HUMMING-BIRD. 



Trochiluarvfus, Gmelin, Sy.st. Nat. I, ITtsS, 41>7. — Ari). Oru. Hiog. IV, 1S3S, 555, pi. 

 ecclxxii, Sdiifiphonis rufus, Swainson, F.-I5or. Am. II, 1»31, ;i"_>4. — Aid. lUids 

 Am. IV, 1842, 200, pi. ciliv. — IJaiiid, lliiils N. Am. 18.">8, 134. — Om.i'kh & SrcKi.KY, 

 164. — Dali. & HANNi.sTEn, Tr. Chic. Ac. 1, 1>G0, 275 (Alaska^ — Finsch, Ahii. Nat. 

 HI, 1872, 29 (Alaska). — Cooi-kii, Orn. Cal. I, 1870, 355. Tr»chilus colhirLs, Lath. 

 (IJoiiapartc). Tmchilus sitkcnsis, KathkI': (Houapartc). (Jrnijsmia susin. Lesson 

 (Bunaparti). 



Sp. Char. Tail stronirly cuneate and wod_c^«'-•'^l^^^€'d. I'pper parts, lower tail-coverts, 

 and breast cinnamon. A trace of metallic <rreen on the crown, which sometimes extends 

 over the back, never on the belly. Throat coppery red. with a well-developed mil" of 

 the same; below this a white collar. Tail-feathers cinnamon, edircd or streaked at the 

 end with purplish-brown. Female with the rufous of the back covered or replaced with 

 <rreen ; less cinnamon on the breast. Traces oidy of metallic leathers on the throat. Tail 

 rufous, banded with black an<l tipped with white; middle feathers uUr^sed with irreen at 

 the end. Tail still cuneate. Lenirth of male. 3.">0 ; win<^. l..V> ; tail, l..">0. 



IIai!. West coast of North America, and across from Gulf of California to the Upper 

 Rio Grande Valley, and alonir the table-lands of Mexico, south : in Middle Provhice east 

 to East Humboldt Momitains. 



* Selaspliorus {phtfifccrcus, var. Vj flnmmuln (Salv.I. ScJnsphorusffnmniuhi, Salvin, V. Z. S. 

 1864 (Costa Rica). (Pcscribcd alwvc from specimen in Mr. Lawrence's colloction.) 



^ Selnsplno'us (rufus xar. ?) scinfiUn (OofLD^. Sdnspliorus scintilla, Gori.n, W Z. S. 1S50, 

 162, Monofjj. Tnx.'li. Ill, pi. cxxxviii. The fore^oinf; sjieeies are so similar in all essential 

 resju'cts to the northern S. platijrrrcus and S. rufus, that it is exceedin^dy probable that they 

 are merely the southern forms of those species. Both ditfer in exactly the same respects from 

 their northern repn'seiitatives, namely, iu smaller size and less burnished throat, and to a very 

 .slight degree oidv in form. The oidy sjtecimen of the .S'. fammuJn that wi liave examined is a 

 badly shot male in Mr. Lawrence's collection ; what ap]»ears to be the outer primaiy in this 

 specimen is not attenuated at the tip, which is curved inward, instead of acutely attenuated and 

 turned outward as in platijcercus ; the wings are badly cut with shot, however, and the tirst 

 primary may be wanting. 



