84 



TuBiCENUs, Dej. — AuLETES, Schoenh., 



Where they also terminate in a club, but it is perfoliate, and the 

 joints are nearly of a similar length or differ but little. The abdo- 

 men also forms a long square, and not an oval, like that of Eur- 

 hinus *. 



Those, in which the antennae are filiform, or where the last joint 

 alone forms the club ; where the proboscis, frequently longer in the 

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

 projects forwards ; in AA'hich all the other parts of the body are 

 usually much elongated, and the penultimate joint of the tarsi is 

 bilobate, form the genus 



BrentuSj Fab. — Curculio, Lin. 



These Insects are peculiar to hot climates. 



In some the body is linear, and the antennre, filiform or slightly 

 enlarged towards the extremity, are composed of eleven joints. 

 They constitute the genus 



Brestvs properly so called. 



M. Steven has separated from them, under the generic name of 

 Arrhenodes, those species in which the head is as if cut behind the 

 eyes, ■\^'tlere the snout is short and terminated by two narrow and 

 projecting mandibles in the males. All the Brenti of North Ame- 

 rica, and the only species found in Europe — the B. italica — belong 

 to this group. The latter, according to the observations communi- 

 cated to me by M. Savi, Jun., professor of Zoology and Mineralogy 

 at Pisa, is always fovmd under the bark of trees and in the midst of 

 certain Ants Avhich have a similar domicil. M. de la Cordaire, who 

 made a splendid collection of Insects in Brazil, has also informed me 

 that he always found the Brenti under the bark of trees f. 



Others, similar as to the form of their body, have but nine joints 

 in the antennae, the last of which forms a small club. Such are 

 those which constitute the 



Ulocerus, Schoenh. % 

 In the last, or the 



Cylas, Lat. 



The antennae are composed of ten joints, the last of which forms 

 an oval club. The thorax is as if divided into tAvo knots, the pos- 

 terior, or that which forms the pedicle, being the smallest. The ab- 

 domen is oval §. 



Sometimes the antennae are distinctly geniculate, the first joint 



* Schcenh., Circul. Dispos. Method., 46 ; Dej., Catalogue, &c, 



t Lat., Gener. Crust, et Insect. II, p. 244; Oliv,, Ibid., 84 ; Schoenh., Curcul. 

 Dispos. Method., p. 70. 



+ Schoenh., Ibid, 75. 



§ Lat., Ibid, p. 268 ; Olivier, Ibid, 84, bis. For some other genera derived from 

 BrentiSjSee the Diet. Class. d'Hist. Nat., article Rhynchnphores. 



