IIIIIUNDIXID.K - THE SWALLOWS. 



329 



Sides of tlu-jugiiluin without a liliii'-hlack patfii in tia> $. Wiiifj, o.20 ; 



folk- of tail, .55 dLV|.. //„/,. Miil.ll,. Aiiicriua, from Sontliurn Mi'xico to 



New Granada , , . . 



\ lif. I r lie II (/ an t e I.* 



Progne subis, Baird. 



FT7BFLE MABMN. 



Ilirumh sKhh, Lix.N. S. N. Kitli ed. 17.58, 192 (//irun,/,, avruka cmmdcims, Ki.WAnr.s 

 Av. tul). 120, Hudsoii'.s Hay). J'ronnc milns, li.MiiD, Itev. Am. liiids, KS(J4, 274 j/ 

 purpura,, Linn. S. JT. l-Jth ed. 17iiti, Mi (//. pur/iur,;,, CviKsiiv, Car. tab. r,I). - 

 Aui). Orn. Hi.-i,'. I, pi. x.xiii. - In. liirds .\ii,. I, pi. .\lv. - VAiii;i:i.i., lii-. Mlids. II, 

 232, 274(KiiKlaiul and Iivlaiid, Sept. ],S42). --.Io.nks, Nat. I!ciimi(la, Si (Sept.* 22,' 

 ISID). l'n>ii,i,- ,nnp„r,:,i, lion:, Isis, l,s2(i, !i71. - liiuowi;!!, N. Am. Ool. 1, 18r.7, 103,' 

 pi. IV, fig. 47 (rf^gs). — ll.vii;n, HinLs X. Am. IS.xs, ai4. — ('<ioim;u& Si:iki,|.;v, |>. |;. \{ 

 R.').. XII, 2, Ifd (Foit Strilacoom). -Bi,AKlsloN, Ibis, ISOIJ, f)5 (Sa-skatclicwaii) - 

 CooiM-.l!, Oni. Cal. I, 1870, IKi. -Sa.MITIM.s, 2liO. Ilirumh violna;,, (Im. //. avrulen, 

 Vlliil.l,. //. nr.iicii/or, ViKil.l,. //. luihwiciuiiit, Ctiv. 



Sp. Char. (No. 1,501 <y.) Entiivly liistroius .steul-biuo, with a purpli.sh gloss; the tail- 

 feathers and the wings, ...xc.pt tho li...s..r and middle coverts, and edge inside, dull black, 



Froi^nr sithis. 



.scarcely glos.sod. Tibiie dark bn. vnish. A .■ou.ral.Ml pafh of white on the sides under 

 the wuig.s. Concealed central portion of anal feathers light whitish-gray. 



(.Xo. 1,129 ?.) Above somewhat similar, but much duller. Renealh smoky brown- 

 ish-gray, without lu.stre, paler behind, and heeomiug .sometimes cpiito whili.sh on belly and 



" Pn,;„„; (si/hi.i var .') lriico,,„s/rr. /Vw/,„- InuVijHstcr, Haiim), Hov. Am. IV IStia, 280 

 {Southern iMexi.M, to ( artliagena.) h;ui„r ,ln,ni„i,r,ms and /'. ,-l,„bihc,i, \v,n. (nee Omki, ) 



From a caivful examiuat .f specimens ,,1 the above Conns, the o,.inion that thevare all Ineal 



differentiations of one primitiv,. type at .,iiee pivsents itself The dillerenees from the typieal 

 xiihi. are not great, except in th.- white-bellied grou]. (domiiumisin and its allies), wliil." an 

 approach to the white belly of these is ,,lainly to be .s,.en in P. rnfpfnlcucn .• again, .some speci- 

 mens of clomhucemix liave the erissum ndxeil with blackish, while others have' it wholly snowy- 

 white. While the male of nyi/ih/rm;, is .scarcely .listingiiishablc, at first .si..ht, from that of 

 subis, the female is entiivly diUcient, hut, on the other hand, .scarcelv to b,. dfstiiigui.slied from 

 that ol ,hmi,ncn,sis ami k,„:„,,:,s/n: Adult males of the latter species are much like a.lult 

 icmales of ,/oini„>-a'„xi.i, while Florhlan (resi,l..i,t) specim.-ns of subis approach very decidedly to 

 the rather unique characters of ,'ln„n,s. It is therefore extremely probable that all are merely 

 local nioditications of one species. 

 42 



