Dec., 1906.] 
Descriptions of New Mallophaga, II. 
37 
and broken obliquely at sutures, band in last segment half the 
length of the segment; central part of segments clear light-brown. 
Male (Fig, 1, F.). Length 3.07 mm., width .81 mm. General 
form very close to that of female, markings of head, thorax, and 
body a little darker, lateral bands not extending into eighth 
segment. 
Described from seven specimens in Professor Herbert Osborn’s 
collection, taken by George H. Cherrie from Melozone cabanisi 
and Melozone leucotis, four females from the former and two 
males and one female from the latter. 
This species shows considerable resemblance to P. subangu- 
latum Carriker and to P. subhastatum sp. nov. in general form 
but differences in size and in arrangement and form of markings 
and various details of shape seem to require the establishment of 
a new species. 
This work was carried out in the Zoological Laboratorv of 
Ohio State University under the direction of Professor Herbert 
Osborn, to whom the writer is greatly indebted for valuable 
assistance. 
Fig. i. D. Physostomum merulae, from Merula migratoria propinqua. 
x 15. E. Physostomum cherriei, from Melozone sp. x 20. F. Physos¬ 
tomum cherriei, male, from Melozone sp. x 24. 
