76 TRccniLi. 



d. $ ad. sk. TucuiTiqui, Costa Rica {Arce). Salvin-Godman Coll. 



€. c? ad. sk. Costa Rica (e.r t?. iV.iajwfiHce). Gould Coll. (Typi- 

 cal specimen. ) 



/. c? ad.; g. ^ Costa Rica (Can?i/oZ?). Gould Coll. 



juv. sk. 



h-k. c? ad. ; I-q. Costa Rica (JEndres). Gould Coll. 



$ ad. sk. 



18. THALURANIA. 



Type. 

 Mellisuga, Bote, Isis, 1831, p. 545 (nee Brisson) .... T. furcata. 



Thalurauia, Gould, P. Z. S. 1848, p. 13 T. uigrofasciata. 



Glaucopis, Burm. Syst. Ueb. ii. p. 333 (185(3) {nee 



Hiibner) T. glaucopis. 



Range. Central America from Honduras to Panama, and South 

 America generally to South Brazil. 



Key to the Sjjecies. 



a. Crown and throat differently coloured. 



a'. Throat and abdomen uniform glittering 

 green. 

 a''. Crown glittering violet-blue. 



a'". Upper sm-face and shoulders shin- 

 ing grass-green t/lcntcopia, p. 77. 



b'''. Upper surface dark shining grass- 

 green, shoulders glittering violet- 

 blue fownsendi, p. 78. 



h" . Crown glittering green lu/pochlora, p. 78. 



c". Crown shining dark green watertoni, p. 78. 



b'. Throat glittering green ; abdomen violet- 

 blue. 



d". CrowTi glittering violet-blue columbica, p. 79. 



e". Crown glittering green. 



c'''. Throat only glittering green eripkile, p. 80. 



d'". Throat and breast glittering green. , fannice, p. 81. 

 /". Crown shining green like the back, 

 e'". Larger. 

 a . Green of the throat extending over 



the breast ; a black pectoral band, nigrofasciata, p. 82. 

 i*. Green of the throat not extending 



over the breast ; no pectoral band, tschudii, p. 83. 



f". Smaller jelskii, p. 84. 



g". Crown greenish black. 



g'". Tail more or less deeply forked; 

 under tail-coverts greenish blue, 

 usually indistinctly edged with 



dusky white furcata, p. 84. 



A'". Tail slightly forked ; under tail- 

 coverts dusky blue plainly edged 



with white fnrcatoides, p. 85, 



i'". Tail deeply forked ; under tail-coverts 



uniform dark steel-blue refulgens, p. 86. 



b. Crown and throat nnifonn dark shining blue, bicolor, p. 86. 



