160 MANDIBULATA. — COLEOPTERA. 



Genus CCCXXXVIIL— Rhinobatus, Megerle. 



Antennce genicukted, 12-jointecl, short, moderately stout, placed towards the 

 apex of the rostrum ; the two basal joints of the funiculus slightly elongate, 

 obconic ; the remainder short, subnodose, the last being broadest ; club elongate 

 ovate, subacute. Rostrum rather slender, longer than the thorax, obscurely 

 bent : thorax conic, with the base very much bisinuated, the centre produced 

 opposite to the scutellum : elytra broad, ovate, slightly convex, obtuse : scu- 

 tdlum xwclvXq: legs rather stout: /cTOora thickened, unarmed: tihias with a 

 minute hook at the apex within. 



Rhinobatus differs from Larinus in having the rostrum more 

 slender and longer in proportion to the bulk of the insect, with the 

 antennse placed towards the apex, and having the club rather obtuse 

 at the tip : — the proportions of the articulations of the antennse are 

 somewhat dissimilar, and the general habit is different : — the larvae 

 of the insects of this and the next following genera are said to possess 

 great efficacy in the cure of the tooth-ache. 



Sp. 1. planus. Niger, griseo-nehulosus,thorace scabriusculo,elytrissuhcylindricis, 

 punctato striatis, subtiliter coriaceis. (Long. corp. 4^ — 5 lin.) 



Cu. planus. Fabricius. — Rh. planus. Steph. Catal. 182. iVo. 1865.— Cu. ebeueus. 

 Don. XV. pL 509. f. 2. 



Black : rostrum punctate, the base obsoletely carinated : head obscurely punc- 

 tured; thorax with the lateral margins oblique, faintly rounded, clothed with 

 a griseous pile ; the disc thickly rugulose with confluent punctures, and in 

 fine specimens slightly pulverulent: elytra with the sides straight, rather 

 deeply punctate-striate, the interstices finely coriaceous, and having fascicles 

 of griseous cinereous down ; which also clothes the body beneath : antennas 

 dull piceous. 



Rare in Britain : I have found it at Dover ; and it has occurred 

 in other parts of Kent, and in Sussex near Brighton. " Weston- 

 super-Mare." — G. Waring, Esq. 



Genus CCCXXXIX. — Rhinocyllus, Germar. 



Antennw not genicukted, 12-jointed, very short, thick; the articulations trans- 

 verse, subperfoliated, somewhat coarctate, increasing in breadth to the club, 

 which is 4-articulate ovate, the joints closely united. Rostrum short, stout, 

 angukted, deflexed, a little bent, the base bicarinated : eyes oval, narrowed 

 beneath : thorax subconic, deeply bisinuated behind : scutellum very minute : 



