PHAOPTILA.—CHLOROSTILBON. 261 
Supra obscure nitenti-viridis, pileo sordidiore, auricularibus nigricantibus: subtus obscure cinerea, cervicis 
lateribus et pectore vix viridi lavatis, tectricibus subcaudalibus cervino tinctis, cauda quam dorsum paulo 
saturatiore: rostro carneo, apice nigricante. Long. tota circa 4:0, ale 2°1, caude rectr. med. 1:1, rectr. 
lat. 1:4, rostri a rictu 0°95. (Descr. maris ex Chilpancingo, Mexico. Mus. nostr.) 
mari similis, sed supra aureo suffusa: subtus pallidior ; caude rectricibus lateralibus cinereis, fascia trans- 
versa subterminali nigra. (Descr. feminz ex Omilteme, Guerrero, Mexico. Mus. nostr.) 
Hab. Mexico, Bolafios? (Floresi *), Chilpancingo, Omilteme, Tepetlapa, Venta de 
Zopilote, in the Sierra Madre del Sur, Guerrero, Mexico (Mrs. Hl. H. Smith), 
Cuernavaca, Puebla (Boucard®), Oaxaca (Boucard 12°, Fenochio®, M. Trujillo *), 
Atlixco (Boucard °). 
This species was described by Gould from specimens obtained in the State of Oaxaca 
by M. Boucard in 1856, and other examples have since been secured in the same 
district by Senor Fenochio and Mateo ‘Trujillo, and the bird appears to be not 
uncommon in the vicinity of the town of Oaxaca. We have also received a series of 
specimens from Mrs. H. H. Smith from various places in the Sierra Madre del Sur, 
where it occurs as high as an elevation of S000 feet. 
Though described from M. Boucard’s birds, there is little doubt that the first speci- 
men sent to Europe was one obtained by M. Floresi, it is supposed at Bolafos in the 
State of Jalisco, and forwarded to Loddiges. This bird was described by Gould in his 
‘Introduction to the ‘rochilide’ as Phwoptila zonura’, but it is almost certainly a 
female of P. sordida. Similar examples have since reached us with males of P. sordida, 
and they agree with a drawing made by Gould of the type of P. zonura. No specimens 
of P. sordida have occurred in recent collections made at Bolaiios and its neighbourhood, 
and its presence in the Sierras north of the Rio Lerma requires confirmation. 
M. Boucard °, who found this bird in considerable abundance at Puebla in 1865, 
says that it enters the gardens of the town and even builds its nest there. The female 
sits about fifteen days, and in about twenty days after the young bird is hatched it 
leaves the nest. 
bl", Rostrum fere rectum, breve. 
CHLOROSTILBON. 
Chiorostilbon, Gould, Mon. Troch. v. sub t. 355 (May 1853) ; Salv. Cat. Birds Brit. Mus. xvi. p. 44. 
This genus was founded by Gould in 1853, his typical species being Chlorustilbon 
pucherant of Brazil, a bird closely allied to the Mexican and Central-American species of 
the genus, all of them, except C. assimilis, having the maxilla as well as the mandible 
flesh-coloured towards the base in the dried skin, the colour in life being coral-red. 
The shape of the bill in Chlorostilbon is similar to that of most Humming-birds so 
far as regards the outline towards the tip. It is nearly straight, of moderate length, 
the nasal covers partially exposed, and the inter-ramal space nude. The tomia of the 
maxilla are distinctly serrate towards the tip, but the mandible is nearly smooth, except 
