211. 

 APION DIFFORMIS. 



Order Coleoptera. Fam. Curculionidae L,at., Leach. 



Type of the Genus Curculio frumentarius Linn. 



Apion Herhst., Lat., Kirhy., Germ., Gyll. — Rhinomacer Geoff., Clairv. 

 — Attelabus Fab., Oliv. — Curculio Linn., Fab., Marsh. 

 Antennae inserted beneath the nasus and before the eyes, not 

 geniculated, and rather long, 11 -jointed, the basal joint being 

 the longest, the remainder varying in lengthj the 2 or 3 last 

 forming a club more or less fusiform. 

 Labrum none. 



Mandibles horny, convex, bent, tridendate, the centre tooth form- 

 ing the apex, a small one arising on the outer and a very strong 

 one on the inner side (2). 



Maxillce broad compressed, forming a large membranous pubes- 

 cent and ciliated lobe on the internal side. Palpi very short, 

 inserted on the external shoulder, 3-jointed, 1st and 2nd joints 

 quadrate, 3rd scarcely visible (3). 



Mentum obovate-quadrate, horny, producing a bristle on each 

 side. Palpi extremely minute and indistinct, apparently 3-jointed. 

 Lip incurved, membranous, pubescent (4). 

 Head elongated into a rostrum (8). Eyes not very prominent nor 

 touching the Thorax which is usually broader than the base of the 

 head. Scutellum very minute, triangular. Elytra convex-ovate, 

 often twice as broad as the thorax (10). Legs long. Thighs robust, 

 subclavate. Tibiae long not spined. Tarsi 4-jointed, basal and ter- 

 minal joints the longest, 3rd bilobed. Claws distinct (5). 



DiFFOKMis Germ. Mag. 3. 46. 2. 



Shining, blackish green. Rostrum long, the antennae inserted 

 beyond the middle, fulvous, the base and apex black, 2nd joint 

 very minute, 3rd transverse compressed cup-shaped, 4th robust 

 scutiform compressed ; 4 following of nearly equal length, the 

 5th and 6th being much more robust than the 7th and 8th, the 

 remainder forming a club, the 9th being turbinate and distinctly 

 articulated, the other 2 being firmly united and conical (6). Head 

 coarsely punctured between the eyes, the basal collar smooth. 

 Thorax subquadrate, narrowed anteriorly, coarsely punctured, 

 with a channel on the back, deepest at the base. Elytra very 

 convex, narrowed towards the apex, with 6 deep, loosely punc- 

 tured striae on each. Epigastrium, with a bifid tooth (11). Legs 

 fulvous, base and apex of thighs and base of anterior tibiae black 

 with 2 obscure spines at the apex ; 4 posterior tibiae (excepting 

 a space above the middle) and the tarsi black. Anterior tarsi 

 with the basal joint long and very much produced internally at 

 the apex which is brown (5): posterior tibiae greatly dilated at 

 their apex as well as the tarsi, especially the basal joint. 



In the Cabinets of Mr. Haworth, Mr. Haliday, and the Author. 



