Coteoptera of Japan. 61 



Named in honour of Herr J. Faust, of Liban, in Fin- 

 land, whose labours on the Khynchophorous Coleoptera 

 are worthy of high praise. 



ByctiscKS lacuni^jennis.* 



RhyncJiites lacunipennis, Jekel, Ins. Saunders, ii., 

 p. '225 ; Koelofs, Ann. Soc. Belg., xvii., p. 140. 



Atteldbus ? cicatricosus, Motsch., in Schrenck. Keise 

 Amur., p 173. 



Byctiscns cicatricosus, Faust, Deutsche Ent. Z., xxvi., 

 p. 291. 



This species was described in the same year by 

 Motschoulsky and Jekel ; and Faust, remarking this, 

 elected to use the name proposed by Motschoulsky ; but 

 he failed to notice that Eoelofs had previously made the 

 same remark, and preferred the name given by Jekel. 

 The two names being thus both in use, and apparently 

 of simultaneous origin, I think it is proper to follow 

 M. Eoelofs' example. 



Khynchites. 



Ehynchites, Hcrhst, Nat. Kiif., vii., p. 128. 

 DiCRANOGNATHUS, Recltefibacher, Hiig. Kaschm., iv., 2, 

 p. 538. 



This genus is numerous in species, and probably exists 

 in all the warm and temperate regions of the large con- 

 tinents of both hemispheres : but the exotic species as 

 yet described are not very numerous. Dicranognathus 

 is registered by Lacordaire and the authors of the 

 Munich Catalogue as distinct, but the characters given 



orientalis. Allied to B. populi, but with shorter rostrum, slender 

 finely punctate thorax, armed in the male with only very minute 

 spines, and with the sculpture of the elytra rather more dense and 

 rugose. The submental plate is produced, and much the same in 

 shape as it is m B. liopuli, but is not so dependent and not so far 

 separated from the mouth. 



"'• The following interesting species, allied to B, lacunipennis, 

 gi'eatly extends the geographical range of the genus : —B. tnorosus, 

 n. s. $ . Cyaueo-violaceus, haud nitidus, thorace dense rugoso ; 

 scutello transversim lineare ; elytris regulariter, profunde, grosse- 

 que seriatim punctatis, interstitiis dense punctatis. Long. 5| mm. 

 Hab. Laos (Mouhot). 



