Feb., 1902.] Mallophagan Records and Descriptions. 
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MALLOPHAGAN RECORDS AND DESCRIPTIONS. 
Herbert Osborn. 
III. LOUSE OF THE RUSTY GRACKI.E. 
Docophorus barba/us n. sp. 
Elongate, head and thorax red brown, abdomen fuscous brown. Length 
2 mm. 
Head much narrowed in front of antennae, the margin slightly incurved ; 
clypeus convex in front, clypeal signature long, narrow behind, clypeal space 
bordered by sinuate chitinous bars ; trabecule conic, anterior border scarcely 
sinuate ; antennae small, first joint thick and short, second longest, border 
of head with five bristles in front of antennae, two long bristles and two 
short minute hairs on border behind antennae, and four very minute hairs on 
occipital border. Prothorax quadrate, anterior angles rounded, postero- 
lateral angles nearly rectangular, hind border slightly convex, a long bristle 
in angle ; metathorax with prominent lateral angle and with three or four 
strong bristles. Abdomen elongate ovate, scarcely wider than head ; fasciae 
broad, fuscous brown, each segment with marginal row of strong bristles ; 
terminal segment with distinct incision. 
The male genitalia are slender, the terminal segment almost truncate with 
a few stiff bristles on apical margin, the segment being dark below and the 
abdominal fascia; nearly continuous above. 
This species presents some quite remarkable similarities to 
speotyti Osb. , especially in the clypeal structure and the excision 
of terminal segment in the female, and were there not apparent 
certain constant differences I should be tempted to think it that 
species and its occurrence on the grackle accidental. The shape 
of head, terminal segment of male and genitalia differ, and I 
conclude they must be distinct. Collected from the rusty grackle, 
Scolecophagus earoliuus, at Lincoln, Nebraska, by Professor 
Lawrence Bruner. 
IV. NEW SPECIES AND RECORDS IN COLFOCEPHALUM AND 
PHYSOSTOMUM. 
Colpocepliaiuni pectination n. sp. 
Light brown with conspicuous ocular and occipital spots. Length 2 mm. 
Head of usual form ; anterior border strongly convex ; about six minute 
hairs and one long bristle in front of the antennae ; postero-lateral lobes with 
three long bristles and several small hairs. Occipital spots connected by a 
brown band, but no distinct connecting band with the ocular spots. Pro- 
thorax with prominent lateral angles, a strong bristle and a small hair at 
extreme angle and six bristles on the hind border. Metathorax with long 
marginal bristles. Legs unicolorous, the hind femora with three combs of 
minute teeth. Abdomen elongate ovate, with faint brownish transverse 
bands and a row of marginal bristles ; third segment below with two combs 
cf minute liair-like teeth on each side, a little nearer the margin than median 
