am 
om 
, SUBORDER MALLOPHAGA. 221° 
two or three long, slender hairs; gula with a fuscous patch produced in front; 
sternum with a small fuscous patch pointed anteriorly; genital bands rounded in 
front, with two circular, clear spots behind the front border extending to near tle 
margin on the sixth segment, posteriorly produced; a rather narrow, rough-edged 
process on the seventh segment; a series of submarginal spots on segments 3 to 9, 
those on the eighth and ninth merging into a single triradiate spot. 
Common on Corvus americanus, Ames, lowa. This is probably Pack- 
ard’s Lapeurus corvi, which was evidently described from an immature 
specimen. 
Docophorus minuto-trabeculatus n. sp. 
Head pointed, strongly tapering before antennz; clypeus narrow, slightly convex 
in front; anterior portion transparent; clypeal mark rounded behind, no hairs; 
trabecule very small, giving appearance of a Nirmus to side of head; eye not promi- 
nent; antenne short, rather strong, joints equal, two hairs on margin; temporal 
lobes full; occipital bands not conspicuous; all bands on head joint, occiput 
_ straight; prothorax about half the width of head, colored at sides, central stripe 
light; metathorax curved behind, colored at sides, central stripes continuous, 
with prothorax clear; colored portion incised for insertions of hairs of posterior 
border; lateral bands of abdomen very short, except on first segment, where they 
extend inward as far as colored portion of thorax, bands less prominent on pos- 
terior segments; eighth without coloration; two faint spots on terminal; ninth 
segment, abdomen, oval, nearly round; a row of four hairs each on segments 3, 4, 5, 
_and 6, marginal hairs on each segment back of fifth; legs colored yellow; tibie larger 
_than femora; color light yellow for colored portions, mostly whitish, possibly not 
fully mature, but has appearance of adult. 
On Fulica americana. 
_ Differs in form of clypeus and abdomen from any species known to 
me as occurring on related birds. Collected from a stuffed bird in the 
“museum of the lowa Agricultural College. In the minuteness of the 
_trabeculz this species might be taken for a Nirmus, but in the form of 
the head and abdomen, and in general appearance it is decidedly a 
_ Docophorus. 
Fa) 
_ Docophorus fusco-ventralis n. sp. 
* 
Quite uniformly chestnut brown, rather slender. 
Length, 1.26 mm.; head, 0.47 mm.; abdomen, 0.61 mm. Width of head, 0.40 mm.,; 
abdomen, 0.47 mm. 
Head longer than wide; clypeus, broad, truncate, thin in front, and with a ventral 
notch at tip; clypeal signature strong, a long, strong, dark-brown spine passing 
backward to a point midway between antenne; sides of clypeus a little concave; 
trabecule strong, forward margin curved (shape of communis); antennz slender, 
light brown; temporal lobes rounded; occipital bands running outward to bases of 
antenn:e; occiput nearly straight; prothorax small, sides straight, widening a little 
behind, posterior border slightly convex; metathorax broader, widening rapidly, 
distinctly angled behind, hind border with a row of hairs; abdomen above brown, 
lateral bands reaching nearly to center, leaving a narrow, whitish, membranous stripe 
from base to eighth segment; eighth segment entirely corneus and brown, margin 
with blackish line, a row of strong, golden hairs on posterior border of each seg- 
ment to eighth; beneath uniformly dark brown, obliterating genital bands; legs 
small, quite uniform with body in color. 
_ On wood pewee (Contopus virens) Cornell University collection; also 
in the Burnett collection, 
** 
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