674 



MR. B. F. CUMMINGS ON LICE 



' Les PedicuHnes ' (1880, p. 83), Piaget allows P. teshcdinarius to 

 stand, and after stating that he does not know D. humeralis D., 

 goes on to say " je n'ai jamais renconti'e sur cet oiseau que le tesho- 

 dina7'ius dont je joins ici la description," The types of these two 

 species, now in the British Museum, prove them to be perfectly 

 distinct. Both species occur commonly on both the Curlew 

 [Niomenius arquata) and the Whimbrel {N. ])hceopibs) ; the 

 characters of P. testudinarius are divergent from the rest of its 

 allies and necessitate the constitution of a new genus. 



Text-fiffure 22, 



PJiiloptei'ns humeralis, Male copulatory apparatus. X 120. 

 SP. basal plate. LE. lower endomere. E. endomere. T. telomere. Pen. penis. 



P. paraniere. 



Philopterus humeralis D. (8, p. 88). (Text-fig. 22.) 



One c? from Numenms arquata. (Linn.). 



Male Copulatory Apparatus. — Basal plate : The anterior half 



