302 RHYNCHOPHORA. \_Miccotrogiis. 



the femora black or fuscous ; upper surface clothed with uniform 

 greyish hair-like scales, underside with broader whitish scales ; rostrum 

 dark in the male, reddish at apex in female, gradually and slightly 

 narrowed towards apex, not much curved ; thorax subtransverse with 

 the sides slightly rounded, not much narrower at base than elytra ; 

 elytra with distinct striae ; in appearance the species much resembles 

 Tychius tibialis. L. If -2 mm. 



By sweeping herbage ; often found in sand pits, haystack refuse, moss, &c. ; it is 

 perhaps more particularly attached to Tfifolium pratense ; common and generally 

 distributed from the Midland counties sou hwards ; much rarer further north ; 

 Northumberland and Durham district, very rare, " Marsden, Mr. J. Hardy." 

 Scotland, scarce, Solway, Forth and Moray districts ; Ireland, Portmarnock, Wtiter- 

 ford, Belfast, and probably widely distributed. 



SIBINIA, Schonherr. 



This genus is very closely allied to the two preceding ; in fact the 

 chief point in which it differs is the shape of the apex of the elytra, 

 which are separately rounded at apex, leaving the pygidium in part at 

 least exposed ; as a general rule they are of rather broader form, but 

 this is not always the case ; some of the species, as for instance 

 S. arenarice and S. primitus, may be easily known by the large darker 

 reddish-brown patch on disc of elytra, reaching backwards from the 

 scutellum, but others are quite uniformly clothed with greyish or 

 yellowish grey scales as in the ordinary small TycJni ; the femora are 

 always simple and the episteina of the metasternum somewhat broader ; 

 the thorax is sinuate on each side at base, and produced into a more or 

 less distinct lobe before scutellum, and has the sides more or less 

 rounded and always narrowed in front ; the species are all found on 

 Caryopliyllaceai, and may in this way be distinguished by collectors 

 from those of the other two genera belonging to the tribe, which always 

 occur on Papilionacece ; the transformations and the male characters 

 appear to be much the same in all the three genera. 



The number of species hitherto known is about fifty or sixty, of which 

 rather more than thirty are found in Europe ; the remainder appear to 

 be almost confined to North and South Africa and the Canary Islands; 

 five occur in Britain, of which one requires further confirmation as indi- 

 genous. 

 I. Clothing of upper surface pilose ; form broader ; 



length 2^-4 mm. 

 i. Upper surface greyish-white or greyish-yellow 



brown, unicolorous or with alternate longitudinal 



bands lighter and darker ; length 3-4 mm . . . (S. PELLUCENS, Scop. 



(canus, Herbst.) 

 ii. Upper surface more or less variegated minutely 



with reddish or yellowish brown and whitish scales ; 



length 2^-2f mm S. POTKNTILT.J;, Gvrm. 



II Clothing of upper surface consisting of distinct 



scales; length Ij-S^ mm. 



