482 CLASS VIII. 
Here belong sub-genera Xyloterus Ericuson (Zrypodendron 
Srepu.), Hopotenemus Westw., Ericus., ce. 
Scolytus Guorrr. (LHylesinus Fasr.). Head partly received in 
thorax, produced into a rostrum short, thick. Tarsi with third 
joint cordate or bilobed. 
Sp. Scolytus Ulmi Dumér., Hylesinus Scolytus Fapr., GHoFFROY Hist. d’Ins. 
1. Pl. v. fig. 5 ; Dumsérit Cons. gén. s. l. Ins. Pl. 17, fig. 3; RaTzEBURG 
Forst-Ins. Tab. x. fig. 4; this species often destroys quantities of elms. 
Sub-genera: Phlewotribus Latr., Hecoptogaster Hersst, Campto- 
cerus Dis., Latr., Hylesinus Far. (in part), Larr., and Hylurgus 
Latr., and some others proposed by Ericusoy, 1. 1 
Family LI. Rhynchophora (Curculionides ScHOENH.). Head an- 
teriorly rostrate, with mouth at the extremity of rostrum. Antenne 
inserted in rostrum, very frequently clavate at the extremity. Third 
joint of tarsi almost always bilobed. Mandibles very frequently 
small, strong. 
Beaked-beetles. These are all herbivorous and gnawing insects. . 
Their larvee have no feet or only tubercles in place of them. 
A numerous family, of which above 7,000 species are known, 
which in the last work of ScHoENHERR form more than 630 genera’. 
Compare on this family, amongst others : 
[CLatRvILLE] Entomologie Helvetique, Vol. 1. Zuric, 1798, 8vo. av. fig. col. 
—C. P. TounBere de Ooleopteris rostratis commentatio, Nov. Act. Soc. Upsal. 
Vol. 7, 1815, pp. 104—125 in C. J. SOHOENHERR Curculionidum Dispo- 
sitio methodiea, Lipsiw, 1826; and Syn. insector., see above, p. 465.— 
LatrEILLE Rhyncophores, in Dict. class. d’ Hist. nat. Tom. xtv. 1828, 
pp. 584—603.—The celebrated German entomologist GERMAR, by different 
communications in the Magazin of IuuicER, and in that edited by himself 
and ZIncKEN Magazin der Entomologie (Iv. Bd., 1821, pp. 291—345, 
Genera quedam, Circulionitum proposita) and by descriptions of new species 
and genera in his Coleopteror. species nov. Hale, 1824, 8vo. pp. 174—461, 
has conferred great services with respect to this family. 
A. Palps very short, conical. Labrum inconspicuous. 
Phalanx I. Curculionita (genus Curculio L. in part). Antenne 
either arcuate or geniculate, with basilar joint or scapus much 
elongated. 
1 Thus, about 300 more than Linn 2vs, in the 12th edition of his Systema nature, 
adopted for the whole animal kingdom. 
