86 Mr. J. Walton on the genus Rhyncbites. 



tained, but it is the Rh. Alliance of Gyl. and Payk.*, and the R. 

 megacephalus of Schonherr." The R. interpunctatus of Wilkin^s 

 cabinet (now in the Zoological Society^s museum) I have care- 

 fully examined. 



I found this species very plentiful in Swanscombe Wood near 

 Gravesendj on the young shoots of the oak underwood of two or 

 three years^ growth, in May. 



10. R. {squatus, Auctorum. 

 Cure, aquatus, Mus. Linn. 

 Att. ^cequatus, Mus. Kirb. 



— $ nigripes, id . 



11. i?. ccBTuleocephaluSy Schal., Fab., Steph., Schonh. 



Cure, eceruleoeephalus, Schaller, Acta Hallensia, i. p. 282, 1783. 



Of this insect I am only acquainted with one example ; it is in 

 the National cabinet : with that specimen I have compared one, 

 with which it agrees, sent me by Dr. Germar bearing the same 

 name. 



It is found upon the white-thorn in Saxony. 



13. R. ceneovirem, Marsh. 1802, Steph. 



— Fragarice (Sturm, Ins. Cat. 1826), Schonh. 



— ohscurus (Megerle MSS.), Schonh. 

 Att. eupreus, Mus. Kirb. 



Of the true Cure, ceneovirens of Marsham I sent specimens to 

 Schonherr, who states the species to be synonymous with his R. 

 obscurus. 



I sent to Dr. Germar many specimens of No. 12, including 

 varieties, which he informed me were the R. obscures of Schon- 

 herr. 



It appearing to me that the R. Fragarice of Schonherr was but 



* In the Linnaean cabinet I find an insect agreeing with Linnasus's de- 

 scription pinned to a lahel with the name AlUaricB on the upper side, and 

 "4 violacem" on the underside, both in the handwriting of Linnaeus. This 

 insect is a ? , and I have little doubt, judging from Gyllenhal's description 

 is the Tliamnophilus frontalis of that author. Also besides the specimen 

 with the double name upon the label there is another label, upon which is 

 written by Linnaeus the name violaceus only ; the two insects upon this label 

 are (? $ of the same species as the single insect which stands on the double 

 name. In the * Fauna Suecica,' p. 174, " No. 579, Cure, violaceus, medits 

 magnitud'mis.'* " No. 580, Cure. Alliarise, magnitudo pulicis, prsecedenti 

 simillimus ; sed paullo major, an scxus vel atatis discrimenV 



Now it will be seen that Linnaeus, in his ' Syst. Nat.' 1767, separates and 

 places in two distinct sections the C. AUiaricB and the C. violaceus ; the 

 former being placed in the section which he gives as character " longirostris 

 femoribus simplicibus ;" the latter (C violaceus) is located in the section 

 " longirostris femoiMbus dentatis." The fact is, that the C. violaceus and 

 C. AlliaricB of Liimseus are the sexes of one species, and in one sex (?) the 

 rostrum is longer, more curved and shining than in the male. Linnaeus must 

 have overlooked the tooth in the femora, as he has done to my knowledge 

 in Tychiusy Bruchus and some other genera. 



