CURCULIONIDAE. 471 



One Stephanocleonus occurs at Lake Superior, and one Cleouus 

 in Texas, and one in Massacliusetts; Lixus is universally dis- 

 tributed. The other species are found from California to Kansas. 



Tribe V.— ERIRHBXINI. 



This tribe consists of a s^reat number of species, all of small 

 size, and representing a large number of genera. Most of them 

 are found near water, ou plants, and some of them are quite 

 aquatic in their habits. In the beak, prosternum, tibise, and 

 tarsi they differ greatly, so as to permit the recognition of several 

 groups, as will be yeeu below, but they agree in the following 

 characters : — 



Mandibles with three teeth, separated by two emarginations, 

 the middle tooth more proniiiient; in the group Desmorhines the 

 outer side of the mandibles, by the transposition of the apical 

 tooth, becomes toothed as in Rhynchitidce; gular peduncle longer 

 than wide, slightly emarginate, mentum small, not transverse, 

 ligula ant) palpi prominent, smaller than in Hylobiini. The beak 

 is cylindrical, sometimes very long and slender, sometimes rather 

 stout; the antennal grooves commence at a distance from the tip, 

 descend obliquely, and sometimes become confluent behind. The 

 antennae are geniculate, the scape long and slender; funiculus 

 usually 7-jointed, sometimes (Endalus) 6-jointed ; club oval, an- 

 nulated, entirely clothed with sensitive surface except in Lisso- 

 rhoptrus. Prothorax with or without postocular lobes; front coxai 

 contiguous, prosternum flat, emarginate, or not, in front; some- 

 times (Bagous) broadly sulcate for reception of the beak. Meso- 

 sternum with the side pieces diagonally divided, epimera not 

 attaining widely the base of the prothorax. Metasternum usually 

 long, rarely (Phycocoetes) very short; side pieces narrow, dilated 

 in front. Hind coxos widely separated, transverse, narrower ex- 

 ternally, and extending almost to the elytral margin. Legs never 

 very stout, thighs usually simple, rarely (Dorytomus) toothed; 

 til)ia3 truncate at tip and feebly mucronate in most genera, strongly 

 unguiculate in Bagoi. Tarsi usually dilated, narrow in certain 

 genera; last joint sometimes long, sometimes short; claws not 

 toothed, divergent, sometimes connate (Desmorhines) or singk; 

 (Brachybamus) ; last joint wanting in the European genus Ano- 

 plus. 



Ventral segments unequal, third and fourth united about equal 



