4 ^^' ^- Carriker 



DESCRIPTIONS AND DISCUSSIONS 



Docophorus bisignatus N. 



Giebel, Iiisccta Episoa, p. io6, pi. IX, fig. 9. 

 Piaget, Les Pcdiculines, Sup., p. 11, pi. II, fig. i. . 



Numerous individuals of both sexes collected on Guara alba 

 at Poza Azul, Costa Rica, June, 1902. This species is readily 

 recognized by the bilobate, clypeal, signature. 



Docophorus platystomus N. 



Nitzsch, in Burmeister, Handbuch d. Ent. 1839. II,' pp. 



426. 

 Giebel, Insecta Episoa, p. 69, pi. IX, fig. i. 

 Denny, Anoplurormn Brittaniae, p. 108. 

 Piaget, Lcs Pcdiculines^ p. 17, pi. I, fig. i. 

 Osborn, Notes on Mallophaga and Pediculidae. Caaad. 



Ent., 1884. XVI, p. 197. 

 • Insects Affecting Domestic Animals, p. 216. 



Numerous specimens collected on Buteo borealis costaricensis, 

 volcano Irazu, April ; on Buteo ahbreviatus, Pozo Azul, June, 

 1902. While these specimens do not exactly agree with Piaget's 

 plate and description in some particulars, they can be referred to 

 that species. 



Docophorus platystoma utnbrosus var. nov. 



Male. — Body, length 2.22 mm., width 1.02 mm.; head, length 

 .86 mm., width .81 mm. Much larger than Piaget's measurements 

 for platystomus, especially the head, which is much narrower in 

 proportion at the temples, with the clypeus very much narrower 

 and deeply emarginate at the tip; the whole head is darker, also 

 the lateral markings of thorax and abdomen ; the pustules in the 

 lateral fasciae are very clear and prominent, not obscured as in 

 platystomus, while the great number of dorsal, abdominal hairs 

 of Piaget's specimens are wanting, there being but a scattering 

 median row on each segment. 



Two males collected on Leucopteiiiis seiniplunibea, at' Pozo 

 Azul, Costa Rica, June, 1902. 



126 



