72 
SECOND YARKAND MISSION. 
reposing on the shoulders of elytra; sides gradually expanded from apex to the middle, 
thence slightly and sinuately narrowed to the base ; margins irregularly depressed, and 
transversely rugose ; a faint depression at each side the disc, and another within each hind 
angle : scutellum small, triangular : elytra a little depressed above, more convex posteriorly 
and somewhat rapidly declivous behind ; base a little wider than base of prothorax, slightly 
sinuate, shoulders slightly rounded, sides gradually, but feebly, rounded to the middle, gra- 
dually narrowed behind, on each elytron eight rows of punctures, more or less effaced at base, 
sides, and apex ; intervals finely punctured, faintly transversely rugulose, the alternate ones 
a little convex, especially towards the apex ; very finely and shortly hispid, most distinctly so 
at sides and apex ; lateral margins costiform : epipleur® distinct ; the fold broad, gradually 
curvedly narrowed from humeral angle to near the apex, faintly rugulose punctate : last 
ventral segment with a broad depression in middle of front margin : front tibiae trigonal, 
gradually, but not strongly, expanded outwardly; outer edge a little sinuate: hind tibiae 
slightly curved : middle tarsi moderately expanded : intercoxal process truncated in front. 
Length 6 lines. 
Sind Valley. 
Chianalus, n. g. 
Closely related to Bioramix ; differs in having the head longer and narrower, the epistoma 
distinctly larger, and more produced anteriorly ; the elytra costate and clothed with short 
erect hairs ; the epipleural fold continued to the apex ; the anterior tibiae finely denticulate 
down the outer edge, the outer apical angle very strongly dentiform ; the intermediate tarsi 
very feebly dilated, the joints being distinctly longer than wide. In both sexes the last ab- 
dominal segment has a semi-circular depression in the middle of the basal margin. 
CniANAIiUS COSTIPENNIS. 
S . More or less oblong-ovate, dark brown, head and prothorax still darker, and nitid : head 
but little wider than long, rather strongly and somewhat closely (except on the crown) punc- 
tured, finely densely granulose punctate behind ; the front is declivous to the epistomal suture, 
which is well marked and sub-angulate ; epistoma distinctly produced beyond the base of 
antennse, broadly rounded anteriorly ; labrum strongly transverse, closely punctured, nearly 
entire in front, the angles rounded : prothorax transverse, but little convex, sides well rounded, 
a little uneven ; the margins narrowly irregularly depressed ; finely and not closely punctured, 
lightly (almost obsoletely) impressed down the median line, usually with a slight foveate 
depression at each side, and a distinct depression at each side at the base, half-way between 
the middle and the angles ; apex narrower than base, lightly emarginate, front angles strong- 
ly depressed, lightly rounded ; base faintly sinuately truncate, hind angles obtuse : scutellum 
small, transversely triangular : elytra more or less oval, sides more or less rounded, generally 
widest at the middle, suture costiform, and on each elytron four stout prominent, rounded cost®, 
the second and third united before the apex and continued thence as but one ; running down 
each interval is also another costa, narrower and much less prominent ; both cost® and inter- 
vals are finely granulose-punctate, and transversely rugulose, and the entire surface is moder- 
ately densely covered with short erect hairs : epipleural fold broad, very gradually narrowing 
