644 



SEINOSUKE UCHIDA: 



and longitudinal chitin bars of a clear brownish colour. Mesothorax 

 nearly as wide as prothorax, distinctly divided from metathorax by 

 lateral emarginations and a suturai line, with short convex lateral, 

 and truncate posterior, margin; two minute prickles on the posterior 

 margin ; lateral borders margined with brownish band. Metathorax 

 O.25 mm. long and 0.5 mm. w.de ; trapezoidal; the anterior margin 

 straight, with two short hairs ; lateral margins bare, nearly straight 

 and diverging posteriorly ; posterior later.d margin convex, with a 

 short hair near each lateral angle. Ground colour of metathorax 

 brownish, paler toward the centre, with a narrow dark brown band. 

 Legs long and stout, somewhat paler than thorax, with dark brown 

 dorsal markings, bearing a few scattered hairs and spines, and on 

 the ventral surface of hind femora several rows of numerous short 

 spines ; onychium large, oblong. 



Abdomen 0.97 mm. long and 0.63 mm. wide ; elliptical, widest at 

 the fifth segment ; length of segments III — VII nearly equal, that of 

 segments I, II and VIII slightly longer and subequal ; posterior angles 

 of segments projecting a little laterally, those of segments I — VIII 

 bearing each a long hair and three or four spines ; the last abdominal 

 segment broad, with a fringe of hairs on the flatly rounded posterior 

 margin ; two long and a short hairs on each side of the fringe. 

 Posterior margins of segments I and II slightly convex, that of seg- 

 ments III — VII nearly straight. Dorsal surface of segments I — VII 

 with a row of about nine, short, submarginal hairs on each side along 

 the posterior margin ; dorsal submarginal hairs of the eighth segment 

 fourteen in number, much longer than those of other segments. A 

 group of five strong spines on each side of the posterior margin of 

 the second abdominal sternite. Ground colour of abdomen pale brown- 

 ish, with a dark brownish transverse band running right across each 

 segment. 



I have named this species for Mr. Y. Kikuchi of the Taihoku 

 Museum. 



