XOVEMIJKK Till, IDIS. 



The one biindrcd tifty-cighrli meeting of the Society \va?! 

 lield in the usual plaee. ]\Ieniher.s ])resent: ^Messrs. I>rid\vell, 

 Khrhorn, Giffard. ^fant, .Muir. Kosa, Swezey and Tiinhei-lake. 

 As none of the officers were ])resent at the ojx'uiiiii hour. ^^r. 

 Giffard was chosen as chairman of the meeting, and he ap- 

 pointed ^Ir. Swezey as secretary. 



]\Iinutes of previous meeting were read and a]iproved with 

 corrections. 



rAi'Kiv'. 



Studies in Rhynchophora (Coleoptera). 

 V. The Genus Rhyncogonus. 



BY DR. UAVll) SlIAKP. 

 ( PRESENTKD BY MK. V. .MIIR ) 



Iihynrofjoiiiis Shai'p. L^^^."). 



Tr. Duhlin Soc., Ser. 2, Vol. ITT. p. ITU. 

 When I estahlislicd tlii^: gciiu<. I indicated its ndations to 

 ('elntflicfcs and EJijirunis. These two genera are placed by 

 Lacordaire in the division Gelenthetides, and it would there- 

 fore appear that I was of opinion that Rhyncogonus is a Cele- 

 ufhctid, tliough I specially ])oinled out its sinnlarity to Otio- 

 rJij/nchiis.. which Lacordaire considers to be a mendK'r of .1 

 grouj^ of g(»neral\ {Otlorhynrliidcs rrais) distinct from ( \'leu- 

 tlietides. In order to settle ilic jxisirion of this interesting and 

 important division of the Hawaiian fauna, T have ridnvesti 

 gated the (piestion, with the result of finding that Blii/nco'.'oun.s 

 has characters so peculiar that it should form a separate group 

 of Otiorhyuchidae that may be callecl ///////(ror/o/i/V/rx triba nov. 

 The chief character of the group consists in the form ^^f the 

 buccal cavity; this is not tilled externally by the mentum, so 

 Thar the maxillae are visible for all their length, while the 

 maxillai-v cleft extends backwards bevond the iuuction of rhe 



Proc. Haw. Ent. Soc, IV. Xo. i. Juno. 1919. 



