540 Div. 3. ARTICULATA.— INSECTA. Class 3. 



Apoderus, distinct by the head affixed to the thorax by a rotule. 



Ajj.s, U4i the head immersed to the eyes in the thorax. 

 Rhynchites, has the proboscis dilated at tlie tip, and the abdomen nearly square. 

 R. Bacchus [a splendid but very rare British species], lives on the vine, the larvae 

 inhabiting the rolled-up leaves, wliich it devours, and thus sometimes commits 

 great damage. 



Apion, Herbst., has the body pear-shaped. See the monographs of Germar and 

 Kirby, in Trans Linn. Soc, vol. xii. [Some of the species do much damage, 

 devouring the seeds of clover.] 



Rhinotia, Kirby [Bebis, Sch.], has the body almost linear, and the antennae 

 thickened, but not clubbed. 



Eurhhtus, Kirby, has the antennae terminated by a long mass, the last joint 

 being greatly elongated in the males. 

 Fiif. 73.— 1, A>;einbus curriiii.iiioiiic's ; TiiOicenus, Dei. (Ait/eies, Sch.), has the antennae terminated by a perfoliated 



Z Ap..<liru» ivcliano! i 3, IUiym.liUes ,,,..,, ' r 



invifruiis. mass, and the abdomen is oblong. 



Tliose which have the antennae filiform, with the last joint alone forming the mass, the prohoscis 

 often longer in the males than in the females, and often differently terminated, and always stretched 

 out in front, the body elongated, and the penultimate tarsal joint bilobed, compose the genus — ■ 



Brentus, Fab, (Curciilio, Linn.) 



These insects are peculiar to warm climates. Some of them, which have the body linear, and the antennae filiform, 

 and ll-jointed, form the subgenus 



Brentus proper, Linn., whichhas been greatly cut up by Schonherr. From the statements of Savi and Lacordaire, 

 it appears that these species are always found beneath the bark of trees ; the only European species is the Brentus 

 italicHs. 



Vlocerus, Schon., has the body linear, and the antenna; ll-jointed. 



Cylas, Latr., has only 10-jointed, and the thorax nodose. 



Sometimes the antennae are distinctly elbowed, the basal joint being much longer than the following. 

 These form the geims Curculio, Linn. 



We divide them into Brevirostres and Lovrjirostrcs, according as the antennae are inserted — near the 

 tip of the rostum, close to the mandibles, — or further back, either near the middle or at the base. 



The Brevirostres form, according to Fabricius, two genera, [Brackyceriis and Curculio]. 



Brachycerus, Fabr.— 

 Has all the joints of the tarsi entire, without cushions beneath ; the antennae are short, scarcely elbowed, and only 

 9-jointe(l, the last forming the mass ; they want wings ; the body is very rugose, or unequal. They are peculiar to 

 the south of Europe and Africa, living on the ground in sandy places, and appearingearly in the spring. According 

 to M. Cailliaud, the Ethiopian women suspend one of the species round their necks as an amulet. 



Curculio, — 

 Has nearly all the under-side of the tarsi cushioned, and the penultimate joint bilobed. The antennae are 11 

 or I2-jointed, comprising the false joint by wliich they are sometimes terminated. Although here much more re- 

 stricted than in the Linnaan system, this genus comprises an immense number of species, particularly described 

 by Schonherr and Germar, who have greatly divided it. They may be divided, according to our own observations, 

 into two principal divisions. 



1. 'I'liose in which the mentum, more or less orbicular, occupies all the oral cavity, and hides the maxillae and 

 man<libles, which are not distinctly toothed. 



Ci/clomus, (including Schonherr's Cri//)tops, Deracanthus, and Amycterus), has the tarsi not pulvillose, and the 

 penultimate joint scarcely bilobed. In all the rest the tarsi are pulvillose, and the penultimate joint bilobed. 



Curculio proper (including a very great number of genera of Schonherr), is winged, and lias the lateral impres- 

 sions of the rostrum oblique, and directed downwards; the fore legs scarcely differ from the rest. The South 

 American species, forming the genera Entimus, Cldoriiua, &c., are remarkable for their splendour, and often for 

 their size. The Dianioml Beetle, {Curculio imperialis,) is one of them. Other small species peculiar to our climate, 

 of amuclisma ler size, but scarcely lesssplendid, [especially under a lens,] and of a silvery or green colour, form the 

 genus Polydrusus, Schonherr, Cure, sericeus, micans, Iietul<e, Sic. 



Leptosomus, Sch., lias the head very long behind, the rostrum very short, the thorax subcylindic, and the elytra 

 produced into two divergent spines. A single species, C. acuminatus, Fabr. New Holland. 



Lfpldcerus, (including many of Schonherr's genera), differs in having the fore-legs elongated, the tibiae cui-ved, 

 the thighs thick and spined, and the tarsi often dilated and ciliated ; the antenna; are long and slender. (Chiefly 

 Brazilian species.) 



Phyllubius (including also many other genera of Schonherr), is winged, but the rostral fossula is straight and 

 (hort. 



The Brevirostres with the penultimate joint of the tarsi bilobed, the wings wanting, as well as the scutellum 

 form various other genera, such as Otiorkychus, Omias, Pachyrhynchtis, PscUidium, Thylacitet, Syiygopt 

 Hyphanltis, Sx, 



