CeutJiorrhyncJius.] RHYNCHOPHORA. 355 



base of suture, underside thickly clothed with whitish scales, which 

 are also present at the sides of the elytra ; thorax transverse, covered 

 with small and very close circular punctures, strongly constricted in 

 front, apical margin raised, with an obsolete central furrow, and with- 

 out lateral tubercles ; elytra with fine punctured striae, interstices broad, 

 slightly roughened at apex, but with the sides smooth ; apex of pygi- 

 dium with a deep incision both in the male and female ; intermediate 

 and posterior femora rather feebly toothed. L. 2-2 ^ mm. 



Male with the posterior tibiae armed with a hook, the last ventral 

 segment of the abdomen broadly and deeply impressed, and the pygidium 

 narrowly but deeply incised at apex. 



Female with the tibiae simple, the last ventral segment impressed 

 with a narrow line at apex, and the pygidium with a short incision. 



On Taraxacum officln a le (Common Dandelion) ; the larva lives in the plant-head ; 

 also found in moss on chalky hill sides, &c. ; rare; Caterham ; Dorking; High- 

 gate ; Darenth ; Hy the ; Deal ; Scotland, rare, Solway, Moray and probably other 



districts. 



C. marg-inatus, Park. Very closely allied to the preceding, of 

 which it has been considered merely a variety, or rather G. punctiger h&s 

 been considered a variety of this species ; it differs in having the thorax 

 sub-depressed and shagreened, and the elytra evidently depressed in 

 front and finely asperate at the sides ; the second joint of the antennas 

 is shorter, the thorax is less widely constricted before apex and less 

 convex, and the elytra are broader towards apex ; the rostrum of the 

 female is also shorter and broader ; the pygidium is foveolate behind in 

 the male and entire in the female. L. 2-i-3 mm. 



Chalky and sandy places ; by sweeping herbage ; often found in flowers ; the larva 

 lives in the heads of Hypochteris mxculata ; local ; London district, rather com- 

 mon, Caterham, Mickleham, Darenth, Reigate, Shirley, Weybridge, Haslemere, \Vest 

 Wickham, Cowley, Horsell, Bearsted, Wimbledon, Chatham, Gravesend, Bashey; 

 Birchington ; Deal; Dover; Folkestone; Sandwich; New Forest; Knowle ; Lin- 

 coln ; Barmouth ; Llandudno ; Yorkshire ; Manchester district, general, but not 

 common ; Northumberland and Durham district ; Scotland, Balniuto, Fifeshire 

 (Power) ; Ireland, Rathkurby, near Waterford (Power). 



(C. rotundatus, Bris. This species of M. Brisout, which is recorded 

 as from France in the catalogue of Heyclen, Emitter and Weiss, but is 

 not referred to at all by M. Bedel, appears to be intermediate between 

 the two preceding species ; it is described as near C. punctiger, but of 

 shorter form and greater convexity, with relatively wider striae, and its 

 pygidium not deeply excised. L. 2-2 f mm. 



By sweeping herbage ; sometimes found on flowers, &c. ; rare ; first mentioned as 

 taken by Mr. Crotch, near London; Reigate, Caterham and Weybridge (G. C. 

 Champion). 



C. urticee, Boh. An inconspicuous-looking species, dull black, with 

 the base of the antennae and the tarsi yellowish -red, upper side scantily 

 and unequally covered with greyish scales which form no pattern but are 



A a 2 



