Humming-birds of Guatemala. 263 



9. DeLATTRIA VIRIDIPALLENS. 



Volcau de Fuego. September 18th. 



This Humming-bird seems to keep entirely to the forests of 

 the Volcano. I have never met with it in the plains below. 



During the months of August and September, the localities of 

 the various species of Humming-birds are usually as follows : — 

 Among the trees on the south-eastern side of the lake are 

 Amazilia dumerillii, Thaumastura henicura (mostly females), 

 Campylopterus rufus, Heliomaster longi7-ostris, Chlorostilbon osberti 

 (in small numbers), Cyanomyia cyanocephala, and Trochilus 

 colubris. 



On the hill-side to the south-westward of the lake are great 

 numbers of Campylopterus rufus, and among the willows close 

 to the water the males of Thaumastura henicura congregate. 

 About the Convolvulus-trees in the llano at the foot of the 

 Volcano are found Eugenes fulgens, Amazilia dumerillii^ Thau- 

 mastura henicura (in small numbers), Trochilus coluhis (very 

 commonly towards the end of September), Cyanomyia cyanoce- 

 phala, Heliomaster longirostris (rarely occurring). 



Entering the first barranco that opens out into the plain, we 

 meet with Campylopterus rufus, Myiabeillia typica, Heliopedica 

 melanotis, and, a little higher up, Petasophora thalassina and 

 Delattria viridipallens. Of course, occasionally a species is found 

 not in its place as here indicated ; for instance, I have seen in 

 the first locality a single specimen (the only female I have met 

 with) oi Eugenes fulgens, and another high in the Volcano. I 

 have also seen a single Petasophora thalassina out on the llano. 

 These localities must therefore be taken as only generally 

 indicating the distribution of the species found about Dueilas. 



This is one of the commonest species at Coban. It may 

 readily be recognized by the peculiar harshness of its note. 



10. Heliomaster constanti. 

 San Geronimo. 



A single specimen was brought to me by a boy. I never 

 saw the species myself at San Geronimo. 



11. Heliomaster longirostris. 

 Duenas. 



