new Species of Histeride. 191 
rally bistriate; the tibie rather narrow, anterior thighs 
grooved for their whole length to receive the tibia *, tarsal 
groove open exteriorly, tarsi short and rather stout, with 
two claws. 
Coproxenus Marshalli, sp. n. 
Breviter ovatus, parum convexus, obscure rufo-brunneus, nitidus ; 
capite punctulato, striaintegra; elytris utrinque bicarinatis, striis 
1-4 et suturali integris, 5 basi abbreviata; prosterno bistriato, 
interstitio parum lato. 
L. 3 mill. 
Shortly oval, little convex, obscure reddish brown, shining ; 
the head, frontal stria complete, strong in the ocular region, 
feebler in front, not closely punctured, but the surface has a 
microscopic sculpture, slightly impressed anteriorly; the 
thorax sculptured like the head, stria complete and continuing 
in front, anterior angles a little prominent, obtuse, and a 
little raised within; the elytra, margin (equivalent of sub- 
humeral external stria) carinate, carina not so robust as that 
of C. opacipennis, and within, the channel is smooth and even 
(without bosses) ; the next carina is complete, with a rough- 
ened edge ; strize formed asin C. opacipennis, but less distinct, 
owing to the interstices being convex and somewhat closely 
punctulate; the propygidium is clearly and not closely punc- 
tulate, the punctuation of the pygidium is less distinct ; the 
prosternum with a microscopic surface strigosity and a few 
large punctures on the anterior lobe, keel rather wide, with 4 
or 5 punctures set quite irregularly, bistriate, strie straight, 
leaning to each other from the base and meeting anteriorly ; 
the mesosternum, striz complete, leaving a somewhat raised 
margin which has an ill-defined stria on either side; the trans- 
verse stria is roughly crenulate and bowed; the metasternum 
is strongly bistriate at the sides and the interstices are wide ; 
the inner stria meets the mesosternal transverse stria, surface 
with large irregular punctures chiefly distributed in the middle 
of the plate on either side of a longitudinal median line; the 
first segment of the abdomen has a wide lateral stria and 
similar punctures to those on the metasternum, but on the 
anterior edge the points are regular and in a row. 
I have much pleasure in naming this very curious species 
after Mr. Guy A. K. Marshall, who is the first entomologist 
who has sent home any considerable collection of Histeride 
from South Africa accompanied with notes on their habits. 
Hab. Natal (no. 8598). “Taken in cow-dung” (Marshall). 
* This character exists in Pelorurus, but is not noticed by Marseul. 
