BIRD-INFESTING MALI.OPHAGA OF JAPAN. 



205 



very small, a short hair in front of each ; antennae 

 with the first segment longest, the second about 

 three-fourths as long ; the third short, with a dorsal 

 angular projection at distal end, the fourth shortest ; 

 and the fifth slightly longer than the fourth. Eyes 

 clear, with a short prickle at the posterior margin of 

 each ; temporal margin rounded, with two long hairs 

 and two prickles ; occipital margin sinuous. Signa- 

 ture shield-shaped, anteriorly pale-coloured, posteri- 

 ori)' sharp-angled, with a median clear suture and 

 one dark-coloured blotch at posterior margin on 

 each side. Antenna! bands reddish brown, bending 

 inwards in front of the base of antennae ; round 

 ocular blotches reddish brown ; occipital blotches 

 blackish brown. 



Prothorax 0.13 mm. long, 0.24 mm. wide, 

 hexagonal ; anterior lateral angles obtuse ; each 

 posterior lateral angle with a protuberance and a 

 hair ; posterior angles each with a stout hair ; pos- 

 terior margin truncate in the middle part. Colour 

 clear brownish, with reddish brown lateral borders 

 which posteriorly extend on each side along the postero-lateral angles and 

 a short way inwards and in the anterior third of their length send out a 

 branch. 



Metathorax 0.23 mm. long, 0.31 mm. wide, quadrilateral; sides nearly 

 straight, diverging posteriorly, each with a long stout hair near the posterior 

 angle ; anterior lateral angles slightly extended, each forming a pointed 

 protuberance ; posterior lateral angles posteriorly prolonged, rather acute at 

 end ; posterior margin nearly straight with five hairs along each lateral third 

 of its length, middle parts of lateral margin edged with reddish brown. Legs 

 paler than body, dorsally dark edged. 



Abdomen slender, elongate ; the first segment much narrower than 



Fig. 2. 



LiJ>eurus iinnnliveittris 

 n. sp., male. X45- 



