.4()S NOItTH AMEiaCAN lilHUrt, 



Genus THAUMATIAS, Bon ap. 



fiKN. Cm.m!. \'ciy siiniliii- in },'oiR'ral I'omi to Heliopwdiai, hut the tail emarf;inated, 

 instead ol' roundcci, tliu (('atlitTs narrower and less rounded at tliu ends. Tlie coloration 

 qniie diU'erent. Sexes alike, in all the species. Color nearly iinilbrni green, with the 

 lUKil ri'irion wiiite, the wiug.s and tail dusky. Many species with the whole lower parts, 

 cxci'iif laterally. pur(> white. One species ('/'. chiouuruii) with the tail white, except the 

 ends of the feathers aiul the intermedia.'. 



The s|)('(i('s lire nil of nitlicr sniiill size and rather pl.ain appearance, from 

 the tmiforniity of their oreen, or green and white, coloring. They belong to 

 northern South America, and to Centi'al America north to Guatemala. 



Th.; genus is inchuli'd in the North American fauna solely upon the 

 accidental occurrence of one species (T. linncvi) in Eastern Massachusetts. 



Thaumatias linnsei, I'.oxap. 



LINN.£TTS'S EMERALD. 



TIuniiHfdiiis lliiiHvi, ISoxAf. I'l'v. et Mag. de Zool. 1854, 255. Thamnatias I. Oori.n, 

 Mimog. Troclnlid. pi. .' Tivclii/.iis Inkici, G.mkl. Syst. Nat. I, 498. ! Trochihis toba- 

 (fcii.ti.% \j.\ru. Ind. Orn. I, 31i). > Troehilus tobnijo, SllAw, Gen. Zoiil. viii, 350. Or- 

 7ii.-iin;/", ftfiili>isiinii, Li;ss. Hist. Xat. 257, pi. Ixxv. f L'Oi.icnu-mouche <i poitrine vcrle 

 (Truchilns mdciddliit), Am. ot Vll'.ii.i.. Oi.s. Dor. toin. I, 87, pi. xliv. ArgyrtrUt 

 ■iiKiriildlii, M.VYNAi!!), Mirds K. Mass. Ks7(i, US (Cambridge, Mass. I). 



Sp. Cir.Mt. Continuous jrreen, darker aliove, more lirilliant, and of an emerald tint on 

 thi' throat and jufrnlum : rrissum, anal region, and middle of the abdomen, white. 

 I'riiuariv's [ihiiu dusky. Tail bhu^kish, 'vith a liiint relh'ction of dark blue sul)terminally, 

 and ol' did! green basally, llie latei'al leathers obscurely tipped with dull dark ashy. 

 S.'xes alike'. Wing, about 2.01) : liill, .70. 



IIaii. Northern lira/.il, Guiana, Tobago, ami Bogota (Gould) ? ? Accidental in the 

 ('astern Tnited States (Caud)ridge, Mius-s., .Mavn'ard). 



This race iiiucli rescniiiles the T. dfljirentris, CRF.K'iiKxn.) Bonai'. (Gould, 

 Moling. Troch., \'n\. V, p. ccci ), of Brazil, but is siiid to be smtiller and with 

 less white on tiuj iil)donien and the under tail-covorts tinged with gray. 



IlAiiirs. The single specimen of this Ilnmming-Rird, referred to by both 

 ]\Ii'. Miiyiiiinl and ^^r. Allen ' as having been taken in Massachusetts, is said 

 to liiive lieen sliot l)y Mr. William i)row,ster in the summer of LSfiS, in Cam- 

 bridge, near Mount Auburn. It was .secured by accident, and was presumed 

 to l)e, when taken, a female specimen of TrocJii/us colubris. It was sent to 

 Mr. Vickary, of i>yini, to be mounted, and the question has been raised if 

 by chance a South American bird may not have been substituted for the 

 originid. This, however, ^\r. Vickary is positive could not have happened. 

 Notliing distinctive was ol)served as to its habits. Tn view, however, of the 

 possibility of an error, the propriety of including it in our fauna is very 

 (juestionabh'. 



' .\iii. Natiii.ilist, lsi)!t-7ll. 



