JAPANESE COLLEMBOLA. 55 



X. longicauda also approaches X. affinis Schaffer ('97, 

 p. 10, tat". 1, fig. 17), which differs from both longicauda 

 and humicola principally by possessing much stouter and 

 unidentate claws, as well as three tenent hairs. 



Family ENTOMOBRYID-2E Tomosvary. 



Genus SEIRA Lubbock. 



Seira japonica, n. sp. 



Color, ochre yellow, with broad, l)lackish-purple 

 bands, commonly as represented in Fig. 15 ; occasionally, 

 every segment of the body possesses a blackish baud. 

 Head yellow, bordered anteriorly, and sometimes poste- 

 riorly, with black. Eyes normal. Antennae (Fig. 15) 

 almost half as long as the body, with segments in rela- 

 tive lengths as 7 : 12 : 13 : 14, densely hairy, and yellow 

 with purple apices. Pronotum yellow, frequently marked 

 with black ; mesonotum not projecting, yellow, often 

 narrowly bordered with black ; metanotum yellow, with 

 an ill-defined band ; first abdominal segment usually yel- 

 low, but sometimes banded behind, like the remaining 

 segments ; each band is generally indistinctly limited 

 anteriorly ; second and third abdominal segments mostly 

 black, or else yellow anteriorly; fourth, yellow in front 

 only and with three yellow stripes behind, one being 

 dorsal and two subdorsal in position ; fifth, yellow ante- 

 riorly ; sixth, yellow, sometimes blackish behind. The 

 entire dorsum is abundantly clothed with bowed, clavate 

 hairs, iuterspersed with short, simple bristles. Scales 

 are present, in addition, which are symmetrical (Fig. 16) 

 elliptical, with a minute rounded pedicel, acute apex and 

 fine longitudinal ribs. Under a one-eighteenth homoge- 

 neous immersion objective, the markings are seen to be 

 linear, almost as long as the scale and broadening slightly 

 at their distal portions. Although my specimens were in 



