48 M. A. Carriker 



marginal bands pale browil. Legs long, rather slender, and al- 

 most colorless. 



Abdomen nearly parallel sided, with acute, scarcely projecting 

 posterior angles, having one weak hair in segments one to four, 

 ' and two in segments five to seven ; eighth segment evenly 

 rounded, with two short hairs on each side ; vulva convex, 

 fringed with fine hairs ; whole abdomen clear, with only faint 

 tinge of golden, excepting the heavy, pitchy, submarginal, lat- 

 eral bands, extending from the end of the metathoracic bands to 

 the middle of the eighth segment, where they are marginal and 

 narrow. 



Four females collected on Tanagra cana, at Juan Vinas, Costa 

 Rica, March, 1902. This species is a curious combination of 

 P. angnJatuin and aiistrale Kell., having the head resembling 

 australc and the thoracic and abdominal markings resembling 

 angulatuui. 



It seems quite remarkable that three closely related species 

 of this genus should be found upon the same host, although they 

 were collected on different individuals. As Mr. Kellogg says, 

 this genus is a peculiar one and must be thoi'oughly revised as 

 soon as sufficient material is accumulated. 



Physostomum picturatum Car. 



Carriker, Neiv Alallophago from A'cbraska Birds. Jour. 

 N. Y. Ent. Soc, vol. X, no. 4. 

 One female collected on Hclminthophila percgriiia, Juan Vinas, 

 Costa Rica, March, 1902. 



The finding of this species on this host in Costa Rica is not 

 so surprising as might at first appear, since it was described from 

 specimens collected on HcluiintJiophila cclata. 



Physostomum pallens Kell. 



Kellogg, Nezv Mallophaga III, p. 49, pi. I\^, fig. 7. 



This species described from specimens collected on Protono- 

 taria citrea was taken on Compsothlypis pifiayiniii, a closely re- 

 lated genus, on the volcano Irazu, Costa Rica, April, 1902. 



But a single female was taken. 



170 



