TROCllILIU.K — THE Ur.M.MIXG-lilUUS. 457 



Calypte costse, Unvu). 



COSTA'S HUMMING-BIBD ; RUFFED HTJMMEB. 



Oniismija cnsia; liarncii;!!, IWv. Zoi.l. (Xt. !»«!», 204 (Lower C'lililbniia). — In. Ann. Sc. 

 Phys. ct d'Hist. Xat. de Lyon, 1840, 225, tab. ii. — I'uKVo.sr & Dks Mn:s, Vovago do la 

 Venu.s, ZooL 1, ISr.;"., 194, Atlas, tab. ii, f. 1, 2. Schis,,/wn<^ o-i/.c, lidx. ("onspeetiis 

 AviniM, I, 1850, 82. .INhis coxtir, 1!i:iciii:nii.\(1I, t'ab. .lonr. fiii- Oiii. Extialicl't, 

 1853, 1854. -- lUiiM), liirds \. Am. 1858, 138, \>\. .\i>:. — KKXxr.iif.Y, I'. 1{. R. x, b, 

 31), pi. xi.\. Ca/i/jitc cosla; UuuLU, Mou, Iluniniiny-iJiids. — I'uoi'Kii, Oin. Cal. I, 

 1870, 300. 



Si'. CliAU. Tail very fiiinlitly .■niaririniit.Ml ami i-oiiiuIimI ; cxtcrioi- fuatluT very narrow . 

 and linear. A very long rull' on each .sidu of tin; throat. Head aliovc and below, with 

 the ruli; covered with metallic red, jiurple and violet (sometimes steel green). Remain- 

 ing npper i.arts and side.s of the body green. Tinoat nnder and betw.'en the rnlls, si.le 

 of head behind the eye, anal region, and uuiler tail-eovorts wliiti.sh. Female with the tail 

 roimded, .scarcely emarginale; barred with black, and tii)ped with white. The metallic 

 colors of the head wanting. Length, ;!.-J0 ; wing, 1.7.'); tail, 1.10; bill. .(!S. 



H.Mi. .Mexieo, Sonihern C'alil'ornia, and the Colorado Ba.sin, Monterey (Xkdol'.v). Ari- 

 zona (Couhs, P. A. N. 8, 18()U, 57). 



Specimens vaiy cuiisideriil)ly in tlje color of the nifi; which, however, is 

 only occasioiiiilly green ; violet lieiiiy the lavvailiiig .shiide. The length of 

 tiii.s iip])en(lage varies considerably. 



The lemale of this species dillcrs much from the male in the absence of 

 the metallic scales on the head iind throat. It lias a clo.se resemblance to 

 the female T. rohihris, although the bill is smaller and narrower. The tail- 

 feathers !ire narrower, more linear, and Icjss acutely ])ointetl at the tip. Tiie 

 black on the outer tail-feathers, instead of extending very nearly to tlie 

 base, is confined to tlie terminal half, the basal portion beit^;> green. All 

 the tail-feathers are terminated by white, although that on "he Ibnrth tind 

 fifth is very narrow. In T. coluhrln this color is confined to the three outer 

 ones. The iniicli smaller size will alone di.stingiiisli it from the female 

 of C. itnna. 



Hamits. This species is a ^lexican l)ird, first discovered by Signor Floresi 

 among the valleys of the Sierra Madre, in tliat conntry, througliout the west- 

 ern portions of M-hich it is said to be an al)nndant species, as well as 

 along our southern borders, whence it extends into Xew ^Mexico, the Colo- 

 rado Valley, Southern Californiti, and Arizona. It was first described by 

 I5ourcier in 18;!'.l, and named in hoinn-of the ]\Iar(|uis de Co.sta, of Chambery. 



Mr. Xi II ills found this .species exceedingly abundant at ("ajjc St. Lucas. 

 It has iilso been found on the eastern coast of the Gulf of California, at 

 Guayma.s, and ]Mazatlan, and also on the table-lands of Mexico. 



It was first added to our fauna liy Dr. Kennerly, who obtained sjiecimens 



near l]ill Williams Fork, in Xew Mexico, Februtiry 9, 1854. At that early 



season a few fiowLi's had already expanded beneath the genial rays of the 



sun, and around them the jiarty rarely failed to find these lieautifiil birds. 



vol,. It. j8 



