BIRD-INFESTING MALLOPHAGA OF JAPAX. 



87 



■of head slightly expanded, angulated ; marginal band of a faint colour, 

 (broadened posteriorly ; occiput sinuous, occipital margin straight, with 

 marginal band darker on sides where it forms chestnut-brown occipital 

 blotch. 



Prothorax narrow, short, trapezoidal with lateral margins converging 

 anteriorly, the posterior margin flatly convex ; lateral posterior angles 

 slightly produced, each bearing a long hair. Metathorax with rounded 

 lateral angles, each with two long hairs ; posterior margin convexly abut- 

 ting on abdomen, with a long and a shorter hair nearer to lateral angle 

 than to the middle on each side. Legs paler than body, with pale yellow- 

 ish marginal marking and some scattered strong spines. 



Abdomen broadly elliptical, posterior angles of I. — -III. segments 

 bearing one hair each ; segments IV. — VII. laterally with two or three long 

 hairs ; the last segment broad, rounded, entire, bearing two long hairs on 

 each side. Dorsal hairs present on IV. — -VI. segments. Lateral band of a 

 pale yellowisn brown colour ; in each segment, it gradually broadens an- 

 teriorly and is bent inwards in a comma-like manner in the border of every 

 two segments. 



2. Gonioeofes abdominalis Piaget. 



Giebel, Insecta Epizoa, 1874, p. 23S, Taf. XX, Fig. 9; Piaget, Les 

 Pediculines, 1880, p. 238, pl. XX, fig. 9 ; Osborn, Pull. 5 (n. s.), Div. 

 of Ent. U. S. Dep. Agr. Wash., 1896, p. 193 ; Goniocotes Jiologastcr, 

 Denny, Monogr. Anopl. Brit., 1842, p. 153, pl. XIII, fig. 4; Goniocotcs 

 Jfifas, Neumann, Traité des maladies parasitaires; 1S92, p. 73, fig. 45. 



Two female specimen obtained from a domestic fowl in Tokyo. 



3. Goniocofes hologaster Nitzsch. 



Giebel, Insecta Epizoa, 1874, p. 184; Piaget, Les Pediculines, 18S0, 

 p. 231, pl. XIX, fig. 6; Neumann, Traité des maladies parasitaires, 1892, 

 p. 72, fig. 44 ; Osborn, Bull. 5 (n. s.), Div. of Ent. U. S. Dep. Agr. Wash., 

 1S96, p. 192. 



