46 
MUSCICAPIN^. CULICIVORA. 
69. 1. Ptilogonys Townsendi, Aud. Townsend’s Ptilogonys. 
Plate CCCCXIX. Fig. 2. Female. 
General colour dull brownish-grey ; quills and coverts dusky brown ; 
edge of wing dull white ; basal part of primaries pale yellow^ of secon- 
daries ochre-yellow ; edges of all the quills dull greyish-white ; se- 
condaries with a faint patch of light brownish-grey on the outer web 
toward the end ; middle tail-feathers greyish-brown, the rest blackish- 
brown, the outer with an oblique white space, including, from the tip, 
a considerable portion of the inner web, and more than two-thirds of 
the outer ; the next with a white patch at the end ; lower parts paler 
than the upper; lower tail and wing-coverts broadly tipped with dull 
white, some of the inner wing-coverts white. 
Female, 8|, wing, 4^. 
Columbia River. 
Townsend’s Ptilogonys, Ptilogonys Towmsendi, Aun. Orn. Biog. v. v. p. 206. 
GENUS IV. CULICIVORA, Swains. GNAT-CATCHER. 
Bill of moderate length, depressed at the base, rapidly 
attenuated, becoming very slender toward the end ; upper 
mandible with the ridge distinct, the tip extremely narrow 
and deflected, the edges overlapping, the notch distinct, but 
very small ; lower mandible with the angle of moderate 
length, the ridge narrowed toward the end, the edges in- 
clinate, the tip acute. Nostrils oblong, exposed. Head 
ovate ; neck short ; body slender. Feet of moderate length, 
tarsus longer than the middle toe, extremely slender, with 
the upper scutella indistinct ; toes very small, extremely 
compressed ; hind toe proportionally very large ; outer ad- 
herent at the base. Claws well arched, extremely com- 
pressed, laterally grooved, acute. Plumage very soft and 
blended. Wings of moderate length, concave ; the first 
quill about a third of the length of the second, fourth 
longest, third and fifth little shorter. Tail long, slender, 
much rounded. 
70.1. Culicivora coerulea. Lath. Blue-grey Gnat-catcher. 
Plate LXXXIV. Male and Female. 
Upper parts bright blue, deeper on the head, paler on the tail- 
