112 Genera of Humming Birds. 



and breast are of a richer blue, and the head also is shining" 

 blue, not green. 



The type of this fine species is in the collection of Mrs. H. 

 H. Smith. 



•^155. lACHE LAWREXCEI, Ridgw, Mon. N.A. Birds., p. 320. 



I ache Lawrenceij Berlepsch, M.S. 



Lawrence 1 s Humming-bird. 



L'Oisean mouche de Lawrence. 



Habitat. — Tehuantepec, (S. Mexico). 



Male — Above metallic bronze-green, including upper tail- 

 coverts, the hind neck more grass-green, and the forehead 

 brilliant metallic greenish-blue, passing into shining green on 

 crown ; entire chin and throat deep metallic blue with a 

 purplish cast in certain lights ; remaining under parts bronzy- 

 green or greenish-bronze. Tail forked. 



Length of wing, 1-90. Tail, 1-50, Culmen, 0-65. 



This genus forms the natural passage, from Thaluranid/E 

 to CHLOROLAMPID/E. 



With the genus Phaeoptila, I have placed both in this 

 family, because they are very closely allied to my new genus 

 Gmelinius. 



FAMILY VIL CHLOROLAMPID^. 



or Family of Emeralds. 



Bill flesh colour with black tips, as in genus Chlorolampis, 

 gradually passing to black, as in the genera Prasitis and 

 Panychlora, about the same length as the head, straight, 

 rather wide at base, and terminating to a sharp point. Body 

 small. Wing long and narrow. Tail varying from very deeply 

 forked to even, rectrices rounded in some genera, narrow and 

 pointed in others. Sexes unlike ; the underside of males are 

 always brilliantly coloured ; that of the females dull whitish- 

 gray. Tarsi clothed. 



Type Chlorolampis, Cabanis, Mus. Hein., i860, t. iii. 



P- 47 



