20 Mr. C. J. Galian on Longicorn Coleoptera 



with typical specimens of Plocedems nitidus, a species which 

 I regard as synonymous with Plocedems ferrugineus, Linn, 

 (see Ann. & Mag. Nat. Hist. ser. 6, vol. v. p. .51). The 

 species with its synonyms and varieties may therefore be 

 written as follows : — 



Plocedems ferrugi neus , Linn. 



= Ceramby.v ferrugineus, Linn., Oliv., et Fabr. 



= ( 'erambyx gigax, Fabr. 



= Lamia umbrina, Dalm. in Schonh. Synonym, i. 3, Appendix, p. 161. 



— Hammatidherus nitidus, "White. 



Var. P. versuius, Pasc. (Cerambyx). 



Vax. P. niger (Chevr. MS.), Gahau, /. e. p. 51. 



I have to thank Prof. Aurivillius for also pointing out that 

 Caelodon rusticum, Fahr., is a species of Taurotagus, very 

 closely allied to T. Klugii, Lac. 



To Dr. Fr. Meinert, of Copenhagen, I am indebted for 

 information concerning the type specimens of Cerambyx holo- 

 sericeus, Fabr. Two specimens from Tranquebar are ticketed 

 as types ; in one the intergenal groove is straight, in the other 

 it is distinctly bowed backwards. I do not believe that these 

 two conditions occur in the same species ; and I take there- 

 fore as representing holosericeus, Fabr., that specimen in 

 which the intergenal groove is straight. The amended 

 synonymy of the species may thus be written : — 



yEolesthes holosericeus, Fabr. 



= Cerambyx holosericeus, Fabr. (nee Oliv.). 

 =Puchydissu8 velutinus, Thorns. 



= Pachydissus similis, Galian. 



= Neoeerambyx holosericeus, Uotes, Ind. Mus. Notes, vol. i. no. 2, pi. v. 

 fig. 3. 



To the synonymy of Plocedems fulvicornis, GueY. ( = ruji- 

 cornis, Newm.), may, I think, be added P. pruinosus, Pasc. 

 ( Cerambyx) . 



In Lacordaire's subdivision of the genus Plocedems 

 (Genera 8, p. 255) there is a misleading error with regard to 

 the type species, P. cyanipennis, Thorns. This species is 

 placed in the first division of Section A, whereas it should 

 come in the second division of the same section. P. nitidi- 

 pennis, Chevr., was in all probability the species mistaken 

 by Lacordaire for cyanijjenm's, Thorns. 



Neocerambyx grandis, sp. n. 



Magnus, sericeo-aurato dense pubescens ; capite supra inter oculos 

 leviter angustimque sulcato, sulco inter antennas descendants; 



