302 BIRDS OF THE REPUBLIC OF PANAMA PART 2 



far out from the trunk, where they were only slightly shaded and 

 screened by the terminal foliage." 



At the water supply dam for Puerto Armuelles, as I worked 

 through a thicket near the stream, 1 came to feed at flowers in the 

 higher branches above me. This has been my only view of the 

 species in life, and apparently the only record for Panama since 

 the days of Arce. 



Generic allocation among this group of hummingbirds at present 

 is not wholly certain. While the present species is placed here in 

 the broad category of Lophomis, it should be noted that Simon 

 (Hist. Nat. Trochilidae, 1921, p. 285) recognized Dialia Mulsant 

 as a monotypic genus for it. Peters (Check-list Birds World, vol. 5, 

 1945, p. 34) unites it with Lophornis helenae in the genus Paphosia 

 of Mulsant, Verreaux and Verreaux. 



POPELAIRIA CONVERSII (Bourcier and Mulsant): Green 

 Thorntail, Coli-espinoso Verde 



Trochilus Conversii Bourcier and Mulsant, Ann. Sci. Phys. Nat. Agric. Ind., 

 Soc. Roy. Lyon, vol. 9, 1846, p. 313, pi. 9. (Bogota, Colombia.) 



Small ; male with tail as long or longer than the body, with the 

 outer feathers attenuated distally in threadlike tips; female dark 

 with white spots below eye, on sides, across rump, and scattered over 

 breast. 



Description. — Length, male 104-110 mm., female 73-78 mm. Adult 

 male, crown dark green with the feathers tipped narrowly with 

 dusky ; back and wing coverts lighter, more metallic green ; rump and 

 upper tail coverts coppery bronze, mixed more or less with bluish 

 black ; a white band across the rump ; tail bluish black, with white 

 shafts, changing to brownish gray distally, with tips of the elongated 

 feathers much narrowed ; wings and primary coverts dusky, glossed 

 with purple ; throat and f oreneck bright metallic green ; breast, 

 abdomen, and under tail coverts darker; an indefinite patch of 

 metallic greenish blue in the center of the breast, with the feather 

 bases black ; femoral and tibial tufts white. 



Adult female, tail without elongated lateral plumes ; above like 

 male, but rump darker ; four central rectrices bluish black, with bases 

 dark green ; outermost tail feather white at base, with a blue-black 

 subterminal band and white tip ; chin and f oreneck dull black, more 

 or less spotted with white ; a broad white band down malar area ; 

 breast and abdomen dull black, with a broad white spot on the sides ; 

 sides elsewhere dull green. 



