Ceuth orrh ynchus.] 



RHYXCHOPHORA. 



359 



tarsi slightly ferruginous ; underside thickly clothed \vith white scales; 

 thorax moderately long with the sides and front thickly clothed with light 

 scales, which are also present on a short band at base, lateral tubercles 

 strong, black, completely surrounded by the scales, margins strongly 

 constricted before apex ; elytra with a cruciform spot of white scales 

 at base of suture, and a lunate band on each side and other markings 

 towards apex, punctured striae rather fine, interstices rather broad, 

 rugose ; femora strongly toothed, claws simple rather slender. L. 3-4 

 mm. 



Male with all the tibise armed with a strong hook and the last 

 ventral segment of abdomen slightly impressed. 



Female with the tibiae simple, the teeth of the femora stronger, and 

 the elytral markings larger. 



On thistles ; local but not uncommon and generally distributed throughout the 

 kingdom. 



C. trimaculatus, F. (wucifer, Ol.). Very like the preceding in 

 general appearance, but easily distinguished by the scutellary patch, 

 which is yellowish in the middle Avith a white patch and small spot on 

 each side, and by the fact that the tubercles of the thorax are not 

 surrounded with white scales, as well as by the light reddish testaceous 

 tarsi ; the antennae also are reddish, except the club ; the teeth of the 

 femora are strong and the tarsal claws are simple and rather slender. 

 L. 3-4 mm. 



On thistles; local and much less common than the preceding; Mickleham, Cater- 

 ham, Shirley, Purley, Headley Lane, Chatham ; Dover; Folkestone; Hastings; 

 Littlehampton ; Brighton ; Portland ; Glanvilles Woottou ; Whitsand Bay, Ply- 

 mouth ; Swansea; Ashbourne, Derbyshire; Scarborough; Ireland, Armagh, one 

 specimen (Rev. W. F. Johnson). 



CEUTHORRHVNCHIDITTS, Duval. 



This genus contains comparatively few species, seventeen only being 

 recorded in the Munich catalogue of 1871, all of which, with the ex- 

 ception of one from South Africa, are recorded from Europe ; in the 

 European catalogue, however, of Heyden, Eeitter and Weise, published 

 in 1883, twenty-four species are enumerated ; about sixteen of these 

 have been recorded as British ; they are very closely allied to the species 

 of CeutJwrrhyncJnis, but are, on the average, considerably smaller, 

 although one or two species, e.g. C. horridus, are comparatively large : 

 they may be distinguished from the three preceding genera (Cceliodes 

 Poophagus and Ceuthorrhynchus) by having the eighth joint of the 

 antennae included in the. club and the f uniculus consisting of only six 

 joints ; this distinction, it must be allowed, does not always appear to 

 be very evident as certain species have been placed in both genera by 

 different authors ; from Tapinotus the species may easily be known by 



