180 SEINOSUKE UCHIDA : 
Head length 0.52 mm., width 0.40 mm. ; somewhat conical; front broadly 
parabolic, with six fine hairs on each side, of which four being on the 
margin of clypeus and two in front of trabecule ; broad yellow marginal 
band completely encircling the front, broadest at clypeal part and showing 
distinct serrations on its inner margin ; the lateral part of the band darker and 
the end ‘bending inward in front of the base of each antenna and forming a 
chestnut brown antennal blotch ; trabecule very small, colourless. Antennz pale 
fulvous, the first segment broadest, subequal to the second or fifth segment, 
the third segment slightly shorter than the second and the fourth shorter 
than the third. Eyes distinct, colourless, each with a short hair; two 
spines behind eye on lateral margin of temples; temples rounded, slightly 
expanded, with one long, weak hair and a short spine near the angle, and 
with a narrow brownish lateral band and 
around brownish blotch between eye and 
antenna; occipital margin with two short 
spines near each temporal angle; occiput 
W-shaped ; occipital band clear brownish with 
two chestnut-brown occipital blotches. 
Prothorax small, quadrilateral; length 
0.14mm., width 0.26mm.; with lateral 
margins convex and slightly converging 
posteriorly ; the anterior margin somewhat 
concave; the posterior margin straight; a 
short hair on each posterior angle. Lateral 
bands clear brownish with an indistinct 
chestnut-brown blotch near each posterior 
angle. Metathorax quadrilateral, length 0.23 
mm., width 0.3lmm.; with anterior and 
posterior margins straight, lateral margins 
Text-fig. 1. Lipeurus formosanus slightly concave in middle and somewhat 
n. sp., female. ca. x 42. 
diverging posteriorly ; anterior angles much 
protruded antero-laterally, posterior angles distinct, cach with a short spine and 
a short hair; four very long, stout hairs on each side of the posterior margins 
near posterior angles. Legs paler than body, with dark brown, dorsal 
