NOTES ON SOME OF OSBORN’S MALLOPHAGA 
TYPES AND THE DESCRIPTION OF A NEW GENUS, 
ROTUNDICEPS (PHILOPTERIDAE) 1 
By Robert L. Edwards 
Biological Laboratories, Brandeis University 
There is a small series of Herbert Osborn’s Mallophaga 
types, comprising nine species, in the Museum of Com- 
parative Zoology. These were described as new in his 1896 
paper, Insects Affecting Domestic Animals. 2 I should like 
to express my indebtedness to the late Mr. James E. Peters, 
Curator of Birds, Museum of Comparative Zoology, who 
permitted me on numerous occasions to examine bird skins 
for lice to help determine the validity of host designations, 
and to Dr. Joseph Bequaert, Curator of Insects, for the 
loan of the type material. Mr. Louis Lipovsky, Department 
of Entomology, University of Kansas, supplied me with 
additional material. Dr. K. C. Emerson has given me many 
valuable suggestions concerning the material. A grant- 
in-aid from the Society of the Sigma Xi made it possible 
for me to complete this study. 
The Osborn types are mounted on roughly cut thick 
glass slides, and many of them have cover glasses of the 
same material. The insects are in relatively good condi- 
tion, although only partially cleared, and are undoubtedly 
those referred to in the descriptions. The type catalog 
numbers are contained in parentheses with the initials 
(MCZ) . 
Penenirmus tyrannus (Osborn) 
Nirmus tyrannus Osborn, 1896, p. 228. 
One slide with two females in fairly good condition 
(MCZ 27341). 
1 Published with a grant from the Museum of Comparative Zoology 
at Harvard College. 
2 1896. U.S.D.A. Bull., No. 5 (N.S.) . 
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