INSECTA. 
540 
Apoderus, distinct by the head affixed to the thorax by a rotale. 
Ab>igf has the head immersed to the eyes in the thorax. 
Rhynchites, has the proboscis dilated at the 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, which 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 \Belus, Sch.], has the body almost linear, and the antennae 
thickened, but not clubbed. 
Eurhinus, Kirby, has the antennae terminated by a long mass, the last joint 
being greatly elongated in the males. 
Tubicenus, Dej. {Auletes, Sch.), has the antennae terminated by a perfoliated 
mass, and the abdomen is oblong. 
Those which have the antennse filiform, with the last joint alone forming the mass, the proboscis 
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 bilohed, compose the genus — ^ 
Brentus, Fab. {Curculio, Linn.) 
These insects are peculiar to warm climates. Some of them, which have the body linear, and the antennae filiform, 
and 11-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 
italieus. 
Ulocerus, Schon., has the body linear, and the antennae 11-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 genus Curculio, Linn. 
We divide them into Brevirostres and LongirostreSy 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, {BracJiycerus and Curculio']. 
Brachycerus, Fabr.— = 
Has all the joints of the tarsi entire, without cushions beneath ; the antennae are short, scarcely elbowed, and only 
9-jointed, 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 appearing early 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 12-jointed, comprising the false joint by which they are sometimes terminated. Although here much more re- 
stricted than in the Linnaean 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. Those in which the mentum, more or less orbicular, occupies all the oral cavity, and hides the maxillae and 
mandibles, which are not distinctly toothed. 
Cyclomus, (including Schbnherr’s Cryptops, Deracanthiis, 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 has the lateral impres- 
sions of the rostrum oblique, and directed downwards ; the fore legs scarcely differ from the rest. The South j 
American species, forming the genera Entimus, Chlorima, &c., are remarkable for their splendour, and often for a 
their size. The Diamond Beetle, {Curculio imperialist is one of them. Other small species peculiar to our climate, a. 
of a much smaller size, but scarcely less splendid, [especially under a lens,] and of a silvery or green colour, form the r 
genus Polydrusus, Schonherr, Cure, sericeus, micans, Betulce,&c. 
Leptosomus, Sch., has 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. 
Leptocerusy (including many of Schonherr’s genera), differs in having the fore-legs elongated, the tibiae curved, 
the thighs thick and spined, and the tarsi often dilated and ciliated ; the antennae are long and slender. (Chiefly 
I Brazilian species.) 
Phyllobius (including also many other genera of Schonherr), is winged, but the rostral fossula is straight and n 
short. 
The Brevirostres with the penultimate joint of the tarsi bilobed, the wings wanting, as well as the scutellum i 
form various other genera, such as Otiorhychus, Omias, Pachyrhynclms, Psalidium, Thylacites, Syzygops, 
Hypliantus, &c. | 
Fig-. 78. — 1, AttelabuB curculionoides ; 
2 Apoderus avellanae ; 3, Rhynchites 
cavifrons. 
