Clytus. | LONGICORNIA. 225 
pp. 411-413), but they present no particular points of interest ; they are 
found in wood of oak, lime, beech, &e. 
I. Elytra with yellow bands and markings, without raised 
callosities at base; femora gradually and not strongly 
clavate at apex. 
i. Form broader; thorax transverse, with the anterior 
margin and an oblique band on each side about 
mddievyellowss ug bones pes Be ec 
ii. Form narrower ; thorax about as long as broad, with 
the anterior and posterior margins yellow . . . . . C. ARIETIS, ZL. 
II. Elytra red and furnished with a raised callosity on each 
at base; hinder part dark with white markings be- 
hind; femora rather abruptly and strongly clavate at 
APEXi Fe ob ae ce Mee oS ae try eo) oe Cee TSP eee et 
C. agcuatus, Z. 
C. mysticus, LD. 
C. arcuatus, L. (Platynotus arcuatus, Thoms. ; s.g. Plagionotus, 
Muls., H. R. W.). A rather large and robust species ; dull black, pubes- 
cent, very finely punctured ; head with a transverse yellow band, an- 
tenne robust and tapering, reddish-testaceous ; thorax considerably 
broader than long, globose, with sides strongly rounded, with the an- 
terior margin and an oblique band on each side behind middle yellow ; 
scutellum yellow ; elytra rather broad, gradually narrowed behind, with 
a line at shoulder, four dots at base, two of which meet at suture, and 
four fascie, the first often broken, the last apical, yellow; the yellow 
fascize consist of thick tomentose pubescence, and are much lighter than 
in C. arvetis; legs reddish-testaceous with the femora clavate, and more 
or less black in middle. L. 10-17 mm.- 
Male with the posterior femora longer than in the female, and the 
anterior tarsi strongly dilated. 
In decaying trees, old posts, &e.; rare; Greenwich (West) ; Loughton, Essex 
(Power); Hertford, Epping, Hainault, Chislehurst, Suffolk, Newcastle, and Gumber- 
lund (Stephens) ; Northumberland district, two specimens (perhaps the same as those 
recorded by Stephens) (Bold). 
C. arietis, L. (Platynotus arietis, Thoms.; s.g. Sphegesthes, Chevr.). 
Narrower and less robust than the preceding species, to which it is rather 
closely allied; it may, however, be at once known by having the thorax 
about as long as broad, with the sides not very strongly rounded, and 
the anterior and posterior margins clothed with thick yellow tomentose 
pubescence; scutellum yellow ; elytra with a straight band near base, 
not reaching suture, a band on each a little behind these meeting or 
nearly meeting at suture and forming together an inverted V, a straight 
band on each behind middle meeting at suture, and the apex, yellow; 
legs reddish-testaceous, with femora sometimes darker, posterior femora, 
as in the preceding species, longer in the male than in the female. L, 
7-14 mm. 
In old posts, rails, &e.; common and generally distributed throughout England 
from the Midland counties southwards; rarer further north ; Manchester district ; 
Northumberland and Durham district ; recorded by Dr. Sharp as very rare in Scot- 
VOL. IV. Q 
