148 SERRICORNIA. { Multhodes. 
B. Colour brighter; elytra shorter in pro- 
Portion «5, aris. 45 sere ve oe len oe |) Mi acoiarus, D, 
(sanguinolentus, Fall.) 
II. Elytra unicolorous black, or with the apex of an 
obscure dirty-yellowish colour. 
i. Thorax not or scarcely broader than long ; size 
larger. 
1. Antennz of male reaching beyond apex of 
body; anterior and posterior margins of 
thorax yellowish « « « 8 « # « © « « M. Fipunartus, Kies. 
2. Antenne of male reaching beyond apex of 
elytra; thorax unicolorous black, or with only 
the extreme front and hind margins lighter . M. MISsELLUs, Kies. 
ii. Thorax distinctly broader than long; size 
smaller, 
1. Length 2-2} mm.; elytra longer in coms 
parison with abdomen Sst ewe a Ma NIGELLUS) Kes. 
2. Length 1-1} mm.; elytra very short in com- 
parison with abdomen . . . «. « « « « M.aArtomus, Thoms, 
M. marginatus, Latr. (biguttatus, Panz.). Fuscous black, shining, 
with all the margins of thorax narrowly, and the epimera, knees, and 
hind margin of abdominal segments yellowish; apex of elytra sul- 
phureous yellow; antenne as long as body in male, much shorter in 
female, entirely fuscous; thorax about as long as broad in male, 
broader than long in female, shining, extremely finely punctured, with a 
more or less obsolete central furrow ; elytra rugosely and finely pune- 
tured, with an intermixture of larger irregular punctures ; legs fuscous 
with knees lighter and femora usually darker. L. 4-5 mm. 
Male with the head much broader than thorax, strongly narrowed 
behind, and the thorax much narrower than the elytra; the penultimate 
ventral segment of abdomen is deeply emarginate in a semicircle, and 
the last segment is narrow and cleft from base, forming two styles, 
which are slightly curved at apex ; the dorsal segments are simple. 
Female with the head scarcely narrower than thorax, and hardly 
narrowed behind, the antenne much shorter, and the thorax scarcely 
narrower than elytra. 
By beating and sweeping in and near woods; common and generally distributed 
throughout the greater part of the kingdom. 
IM. mysticus, Kies. Very like the preceding in general appear- 
ance; black, shining, with the posterior margins of thorax, and some- 
times the anterior margins, very narrowly yellowish ; antennx fuscous, 
much longer in male than in female; thorax broader than long, with 
posterior angles right angles; elytra short, subtruncate at apex, more 
distinctly punctured at apex than at base, with the apex sulphureous 
yellow, sometimes entirely black, unicolorous; under-side black, with 
the sides of the basal seements and the apéx yellowish ; legs fuscous, 
with knees somewhat lighter. L. 3}-4; mm. 
Male with the head broader than thorax, which is narrower than 
