Feb., 1902.] Mallophagan Records and Descriptions. 
203 
line, each comb with about ten teeth. Penultimate ventral segment with a 
median process and ciliate border; terminal segment of female with fine 
ciliate border. 
Described from a number of specimens collected from the 
burrowing owl, Speotyto cunicularia hypogaea, by Prof. Lawrence 
Bruner, Lincoln, Nebraska. 
The peculiar combs of fine hair-like teeth on the third segment 
of the abdomen, while not confined to this species are, with 
other characters, quite distinctive and are of special interest as 
showing the range of morphological features presented by mem- 
bers of this group. Since noting them in this species I find 
Piaget had described similar combs on the femora of his pectini- 
ferum, a species occurring on Milvogos pezoporos. Of these he 
says “ four to 5 petits peignes dont les dents diminuent insensi- 
■ blement de longuer.” He makes no mention of combs on the 
abdominal segment, which in my species have a very similar 
structure. About the only function that can be assigned to them 
is that of assisting in holding the body in definite positions in its 
attachment to the feathers. 
Colpocephalum spin ulosiun Piag. var. minor Kellogg. ( New 
Mallophaga III. p. 112.) 
A female specimen from the American dunlin, Tringa alpina 
pacifica, from Prof. Bruner, “Salt Lake Haggard," corresponds 
so closely with the form described by Kellogg from Calidris 
arenaria, Pacific Grove, Cal., that I do not hesitate to so place it. 
Colpocephalum laticeps Kellogg. 1 New Mallophaga I. p. 149.) 
Kellogg described this species from one male taken from Ardea 
egretta. I have one mature female and three immature individu- 
als taken at Ft. Collins, Col., by A. C. Stephenson, from the 
American bittern, Botaurus lentiginosus, which agree in almost 
every detail and description as separate species would seem 
unwarranted. In shape, markings and distribution of hairs and 
bristles there is scarcely any difference, but the meta-thorax is 
narrower and the lateral margins more strongly colored than 
shown in Kellogg’s figure. Length of male is given as 1.72, and 
this female is nearly 1.80 mm. 
Physostomum hastatum 11. sp. 
Occipital angles with distinct hooked angle, margitisof abdomen brownish 
the disk with a broad brownish stripe. Length, 3 mm. 
Head with the front expanded, submargin convex with numerous bristles ; 
the labral lobes (palettes), large, projecting much beyond the margin of the 
Explanation* of Plate 14. 
Kit;. 1. Docopliorus barbatus n. sp. Female dorsal view. 
Fig. 2. Colpocephalum peeliuatum 11 sp. Female, ventral surface cf posterior segments 
below. 
Pig. 3. Physostomum hastatum n. sp. Female dorsal view. 
Pig. 4 Lipeurus margiualis Osb Description page 176 ante. 
Figures by Max. Morse, under direction of the author. 
