Ceuthorrhynchus. RHTNCHOPHOBA. 349 



and a distinct tubercle on each side ; elytra with strong and broad 

 punctured striae which are almost as broad as the interstices, inter- 

 stices narrow and convex with rows of whitish setae ; legs moderately 

 long. L. 1| mm. 



Male with the posterior tibiae 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 tibiae simple and the femora, at all events the inter- ' 

 mediate and posterior pairs, distinctly toothed. 



On Sisymbrium offidnale, Tklaspi artense and other Cruc-iferce ; the larva has 

 been found at the foot of the latter plant ; local, but not uncommon where it occurs ; 

 Barnes, Weybridgp, Caterham, Hammersmith, Nottine Hill, Hampstead, Lewi-ham, 

 Claygate, West Wickham, Belvedere, Darttbrd, Rusper, Chatham, Slieerness, 

 Graveseud ; Norfolk, near Huustanton ; Deal; Hastings; Southampton district; 

 Llaugollen ; Llandndno ; Findern, near Repton (W. Garneys) ; Heysham, Lan- 

 caster ; Stretford, Manchester; Scotland, rare, Moray district. 



I believe C. riridipennis, Bris., to be a variety of this species, per- 

 haps tearing the same relation to it that the v. chloropterus bears to 

 C. eryfimi. 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 Merciirialis perennis), and it has been recorded 

 also from Hammersmith and Llangollen. 



C. hirtulus, Germ. A small, short oval species, rather convex, 

 under surface clothed rather sparingly with Avhitish scales, upper 

 surface black with the elytra obscurely blue or black blue, with the 

 interstices furnished with distinct rows of black setae ; 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 punc- 

 tured striae, interstices moderately broad ; legs somewhat .stout. L. 



Male with the posterior tibiae 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 tibiae simple and the posterior femora furnished 

 with a small but distinct tooth. 



On Sisymbrium offidnale and other Cruciferce ; the larva has been observed on 

 Draba rtrnct; 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, &c. ; 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. 

 contractits, but may be known by its colour, the setae of the elytra 



