Anthicus. | HETEROMERA. 85 
may at once be known from WNotoxus by not having the thorax produced 
into a horn over the head, and by the shorter last joint of the antenne; 
some of the unicolorous black species are rather difficult to distinguish; 
the genus is by certain authors divided up into several sub-genera. 
I. Anterior tibiz not produced into a spine at apex 
externally; tibial spurs small or indistinct (An- 
thicus, i. sp.). 
i. Head rounded at base. 
1. Front of thorax narrower, scarcely as broad as 
head ; sides less strongly narrowed behind . . A. HUMILIS, Germ. 
2. Front of thorax broader, at least as broad as, 
or broader than, head; sides more sees and 
suddenly narrowed behind. . . . . . . A, SALINUS, Crotch. 
ii. Head straight or almost straight at base. 
1. Elytra reddish-brown or ligat brown at base, 
darker towards apex. 
A. Male with the posterior tibiz not dilated ; 
elytra rather flat, obsoletely impressed at base A. FLORALIS, L. 
(v. quisquilius, Thoms.) 
B. Male with the posterior tibiae very strongly 
and spathulately dilated externally at apex ; 
elytra convex, not impressed at base. . . . A. INSTABILIS, Schmetdt. 
2. Elytra black or brownish-black, unicolorous or 
with at most an obscurely lighter patch at 
shoulders. 
A. Form narrower ; thorax evidently longer than 
broad. 
a. Thorax shorter and broader ; a larger ; 
femora red” ~~ =. . A. ANGUSTATUS, Curt. 
b. Thorax longer and narrower ; ey es aemallens 
femoraiblack: © « « « «+ « «iliel of of, Ae TRISTIC.. Schimeat: 
(v. Schaumi, Woll.) 
B. Form broad and convex; thorax scarcely 
longer than broad. . A. scoticus, Rye. 
3. Elytra black, with distinct and well-defined red 
markings . . See ke . A, ANTHERINUS, L. 
II. Anterior tibize produced into a | strong spine at apex 
externally ; all the tibial spurs rather large and quite 
distinct ; size large; colour testaceous, with a small 
dark spot on each elytron (s.g. Honius, Thoms.) . . A. BIMACULATUS, III. 
A. humilis, Germ. (nigrinus, Zett.). Elongate, variable in colour, 
the upper surface being entirely black or black-brown, unicolorous, or 
with part of the thorax and one or two bands or patches on each elytron 
ferruginous red or reddish-testaceous ; pubescence greyish, scanty but 
comparatively coarse; headoval, moderately large, rounded at base, 
rather strongly punctured; antennz long, reddish ; thorax subcordiform, 
considerably longer than broad, but scarcely as broad as head, dilated 
in front and narrowed behind, distinctly punctured, with two well- 
marked tubercles at base; scutellum triangular, very small; elytra oval, 
or elliptical, about three times as broad at base as base of thorax, with 
close and deep punctuation ; legs testaceous, femora and more or less of 
tibie dark. L, 2-3 mm. 
