Ceuthorrhynchus. RHYNCHOPHORA, 349 
and a distinct tubercle on each side; elytra with strong and broad 
punctured strie which are almost as broad as the interstices, inter- 
stices narrow and convex with rows of whitish sete ; legs moderately 
long. L. 14 mm. 
Male with the posterior tibie armed with a hook, the teeth of the 
femora almost obsolete, and the last segment of the abdomen with an 
impressed fovea. 
Female with the tibie simple and the femora, at all events the inter- 
mediate and posterior pairs, distinctly toothed. 
On Sisymbrium officinale, Thlaspi arvense and other Crucifere; the larva has 
been found at the foot of the latter plant ; local, but not uncommon where it occurs 5 
Barnes, Weybridge, Caterham, Hammersmith, Notting Hill, Hampstead, Lewisham, 
Claygate, West Wickham, Belvedere, Dartford, Rusper, Chatham, Sheerness, 
Gravesend ; Norfolk, near Hunstanton; Deal ; Hastings; Southampton district; 
Llangollen ; Llandudno; Findern, near Repton (W. Garneys); Heysham, Lan- 
caster ; Stretford, Manchester; Scotland, rare, Moray district. 
I believe C. viridipennis, Bris., to be a variety of this species, per- 
haps bearing the same relation to it that the ». chloropterus bears to 
C. erysimt. I have not, however, had an opportunity of examining a 
type of the insect ; Dr. Sharp omits the species in the second edition 
of his catalogue, and M. Bedel does not notice it at all in his work, 
even as a synonym. Mr. Champion records it from Whitstable and 
also from Caterham (on Mereurialis perennis), and it has been recorded 
also from Hammersmith and Llangollen. 
©. hirtulus, Germ. A small, short oval species, rather convex, 
under surface clothed rather sparingly with whitish scales, upper 
surface black with the elytra obscurely blue or black blue, with the 
interstices furnished with distinct rows of black sete ; rostrum rather 
long, head depressed between eyes, closely punctured ; thorax closely 
and strongly punctured, constricted in front, with a central channel 
and a distinct tubercle on each side; elytra with rather strong pune- 
tured strix, interstices moderately broad ; legs somewhat stout. L. 
1j-15 mm. 
Male with the posterior tibie armed with a hook at apex, the last 
ventral segment of abdomen impressed with a small fovea, and the 
posterior femora furnished with an obsolete tooth. 
Female with the tibiz simple aud the posterior femora furnished 
with a small but distinct tooth. 
On Sisymbrium officinale and other Crucifere ; the larva has been observed on 
Draba verna ; it lives in a gall on the stems and undergoes its transformations in 
the earth; rare; Deal (Champion); Portsmouth district (Moncreaff) ; Isle of 
Wight (Blatch); York (Hey); Scotland, very local, Tweed and Forth districts, 
Rannoch, Aberlady, &e.; Mr. S. Stevens has received it from Mr. Wollaston, and 
I believe that Dr. Power once took it at Mickleham, but I am not quite sure of 
his record. 
In size and general appearance the species somewhat resembles C. 
contractus, but may be known by its colour, the sete of the elytra 
