7i 



59. 

 COSSONUS TARDII. 



Order Coleoptera. Fam. Curculionidae Lat.^ Leach. 



Type of the Genus * Curculio linearis Fab. 



CossoNUS Clairv., Fab., Lat. Curculio Fab., Payk., Herbst. 



AntenncB inserted in the centre of a fissure on each side 

 towards the extremity of the rostrum in both sexes in the type, 

 and in the male alone in C. Tardii (f. 7), and near the base of 

 the rostrum at the posterior extremity of the fissure in the fe- 

 male (f. 8) 3 as long as the rostrum, geniculated, composed 

 of 9 joints, pubescent, hairy, excepting the 1st joint which is 

 long and smooth, '2nd and 3rd a little longer than the 5 following 

 which are very short, club somewhat conic probably 3 -jointed 

 (fig. 6). 

 Labrum none. 



Mandibles irregular in form, somewhat acute at the apex, with 

 one or two teeth on the internal edge (2). 



MaxillcE short, somewhat acute at the apex which is coriaceous, 

 •with a row of strong obtuse curved bristles on the internal edge : 

 Palpi short, 4-jointed, 1st joint very robust, 4th small, cylindric, 

 truncated (3). 

 Mentum short, narrowed at the base : Palpi 3-jointed, truncated 



(4). 

 Head produced into a rostrum which is dilated and depressed at the 

 apex in both sexes in the type, and in the male alone in C. Tardii (7), 

 and cylindric in the female of that species (8). Eyes scarcely pro- 

 minent. Thorax broad, very much narrowed anteriorly, more or 

 less depressed. Abdomen very much elongated, somewhat cylindric, 

 depressed. Elytra entirely covering the body. Scutellum minute. 

 Legs rather short. Thighs robust, notched beneath towards the apex. 

 Tibiae compressed, uncinated externally at the apex. I'arsi attached 

 to the internal surface of the tibice, 4-jointed, \st and Ath joints 

 longer than the others, 3rd cordate or bifid (o afore leg). 



Takdii Vigors's MSS. 



Blackish, somewhat castaneous, rougli, glossy. Head punctured, 

 with a foveola between the eyes. Rostrum covered with large 

 punctures, and a channel between the antennae in the male j 

 smooth in the female. Thorax deeply and closely punctured, 

 smooth down the centre, with a transverse impressed line near 

 the anterior margin. Elytra with about 10 deeply punctured 

 striae on each, the surface between rugose. Antennae and legs 

 castaneous, the former with the club very pubescent, the latter 

 punctured, having a few short close hairs. — Some specimens are 

 much more castaneous than otl>ers, and they frequently are not 

 more than half the size of that figured. 



In the Cabinets of Mr. Vigors and the Author. 



* The (li-.si'ctli)ii^ .;ri.' made I'roin ('us.ioiiiis 'l\mlU. 



