NEW MALLOPHAGA. 477 



Docophorus distinctus n. sp. (Plate lxv, fig. 5.) 



Many specimens, males, females, and young, from the 

 American Raven, Corvus corax sinuatus (Colorado). 

 This form belongs to the coj'vinicolcB infesting the Cor- 

 vini and is of the type atropicti characterized by the 

 whitish ground color of the body, and sharp black mark- 

 ings. The new species differs from Nitzsch's atratus 

 (Giebel, Insecta Epizoa, p. 81, pi. ix, fig. 10) from Cor- 

 vus frugilegus by the long hairs of the clypeus; from 

 Nizsch's occllatus (Giebel, Insecta Epizoa, p. 81, pi. ix, 

 figs. 7 and 8), from C. comix and C. corone, by lacking 

 the strongly marked bands on the temples, and by the 

 short signatures; and differs from Piaget's albidus (Les 

 Pediculines, p. 48, pi. iii, fig. 6) from C. scaftiJatus by 

 the pustulated hairs of temples and metathorax. 



Description of the male. Body, length 2 mm., width 

 1.06 mm.; ground color whitish with distinct, sharply 

 defined, black markings. 



Head, length .63 mm., width .72 mm.; very broad in 

 front and truncate ; five long marginal hairs on each side 

 of forehead, one at base of antenna?, one in eye, one 

 just behind the eye, and three on the temporal margins; 

 occipital margin straight, bare ; antenna? with segment 1 

 large and swollen, segment 2 slender and longest, seg- 

 ments 3-5 short, subequal and colored dark brown, seg- 

 ments 1-2 uncolored ; signature very short, or at least 

 with only a short, oblong, anterior part colored; antennal 

 bands broad, irregular, interrupted at the suture, and 

 with subparallel inner bands ; occipital bands very dis- 

 tinct, diverging and meeting the expanded basal extrem- 

 ities of the antennal bands ; ocular bands narrow, distinct, 

 and extending around behind the eye; a shield-shaped 

 occipital signature showing through. 



Prothorax narrow, with strong, black, lateral borders, 



