Pliytophagous Coleoptera of Japan. 97 
The present insect differs from C.fiavilahris, the spe- 
cies to which it is most closely allied, by the deeply punc- 
tured strite on its elytra. 
Whilst C. fortunatus and appro ximatus represent in 
Japan C. nitidulus and its allies, C. permodestus and 
amatus replace C. Jlavilabris, fulcratus and JantJwius. 
Cryptocej)halus discretus. 
Subelongatus, antice angustatus, subcylindricus, niger, 
antennis basi flavis, ore, thoracis margine antico pedi- 
busque quatuor anticis obscure fuhds, posticis piceis ; 
thorace elytrisque nigro-CEeruleis, metallicis, illo evi- 
denter minus remote punctato, utrinque transversim de- 
presso ; his fortiter punctato-striatis, interstitiis Isevibus, 
convexis. 
Var. A. Thoracis margine antico disco concolore. 
Var. B. Femoribus intermediis dorso infuscatis, tho- 
race ut in Var. A. 
Long, li lin. 
Hah. — Var. B, Tsu Sima (Adams); the type and 
Var. A from Chusan, collected in both localities by Mr. 
A. Adams. 
Head smooth, finely and remotely punctured, lower 
half of clypeus and mouth obscure fulvous; cheeks and 
five lower joints of antennae yellow, sixth and seventh 
joints pale piceous, the rest black. Thorax twice as broad 
at the base as long, sides obliquely deflexed and nearly 
parallel on their hinder half, thence slightly rounded and 
obliquely converging to the apex ; basal margin very 
slightly concave on either side, basal lobe scarcely pro- 
duced, broadly truncate ; upper surface convex, trans- 
versely depressed on either side on the middle of the outer 
disk, distinctly but not very closely punctured. Scutellum 
large, trigonate, shining black. Elytra oblong, equal 
in width to the thorax at the base, gradually increasing in 
width fi-om thence to beyond their middle, thence broadly 
rounded to the apex ; above convex, strongly punctate- 
striate ; interspaces slightly convex on the inner disk, 
strongly raised and subcostate on the outer disk and 
towards the apex of the elytron. 
Near C. pallifro7is, larger and more deeply punctured. 
TRANS. ENT. SOC. 1873. — PAET I. (mAR.) H 
