Ceuthorrhynchus. | RHYNCHOPHORA. 345 
by a series of spots or linear patches, or only 
interrupted at fourth interstice. 
aa. Thorax shorter, evidently transverse, raised 
at apex ; second joint of the funiculus of the 
antenne equal to the first ahs 
bb. Thorax longer, not or scarcely raised at 
apex; second joint of the funiculus of the 
antenne a little shorter than the first. . . C. TRIANGULUM, Boh, 
ii. Tarsal claws simple, rather slender.* 
1. Scutellary patch entirely white; tarsi dark ; 
tubercles at sides of thorax completely sur- 
rounded with white scales. . . . ... . 
2. Scutellary patch yellowish in middle and white 
on each side; tarsi red; tubercles at sides of 
thorax not entirely surrounded by white scales. C. TRIMACULATUs, F. 
C. CHRYSANTHEMI, Germ. 
C. LITURA, F. 
C. assimiiis, Payk. (brassicw, Foe.). Oblong-oval, upper surface 
rather depressed, leaden-black, underside thickly clothed with white 
scales, upper surface with moderately close grey scales; rostrum long 
and slender ; thorax narrowed and considerably constricted in front, 
closely and rather strongly punctured, with the anterior margin raised, 
and with a central furrow (which is deeper in front and behind and 
often more closely covered with scales); on each side there is a raised 
transverse line or tubercle ; elytra with shoulders well marked, and with 
comparatively fine, but distinct, punctured strix, interstices flat, apex 
feebly muricate ; legs rather long and slender, femora simple, tarsal claws 
not cleft or toothed. L. 2-3 mm. 
Male with the posterior tibize armed with rather a strong hook, and 
the last ventral segment of the abdomen furnished at apex with a rather 
broad and shallow fovea; antennz inserted in middle of rostrum. 
Female with the tibiz simple, the last ventral segment with a small 
fovea, and the antenne inserted a little behind middle of rostrum. 
On Sisymbrium, Erysimum and other Crucifere ; the larve have been found in the 
pods of the cultivated cabbage; generally distributed and common throughout the 
kingdom. 
C. syrites, Germ. Allied to the preceding, but much broader, with 
the thorax at base nearly twice as broad as long, more strongly cou- 
stricted before apex, strongly and deeply punctured, the elytra more 
broadly and distinctly muricate at apex, with the interstices granulosely- 
punctate, and furnished with rather broader scales arranged in biseriate 
rows; the club of the antenne also is shorter and the tarsal claws are bifid: 
the black colour of the upper surface has no metallic reflection ; in Ae 
female the antenne are inserted further behind the middle of the rostrum 
than is the case with C. assimilis. L. 24-3 mm. 
By sweeping herbage; very rare; found by sweeping in th i 7 
at Birch Wood corner, ike 11th, 1860, fe Silene G iite ee en 
Wood, July, 1860 (S. Stevens); Erith, June 26th, 1860; Knowle, Bewdl 
Tewkesbury (Blatch). : ; » Dewdley and 
* See page 342, twelve lines from bottom, 
