1904.] 35 



Darcuth Wood, " while iu company with inc on a colluctiug excursion," 

 and another " subsequently in JJevoushire." These specimens are, I 

 presume, the two now at South Kensington in the British collection. 

 Not having turned uj) since, as far as I know, it might perhaps a8 

 well be omitted from the list of existing British species. 



NOTE ON TWO SPECIES OF COLEOPTERA INTRODUCED INTO 



EUROPE. 



BY GILBERT J. ARROW, F.E.S, 



iwo small species of beetles, which may become of importance 

 as affecting articles of commerce imported into Europe from the East, 

 were originally described by Walker (it is unnecessary to say without 

 any exact study of them) from specimens in the British Museum, 

 and examples of both introduced into Europe have since been 

 characterized by Herr E. Eeitter as generically and specifically new, 

 other authors having also described them under different names from 

 various quarters of the world. The object of this note is to bring 

 together the various synonyms, and to point out the correct name iu 

 each case. 



The first of the species referred to was culled Ditoma rugicollis 

 by Walker in 185S, and five years after was given the name of Minthea 

 similata by Pascoe, who, although ignorant of Walker's connection 

 with it, placed it in the same family, GolydiidcB. Mr. Waterhouse first 

 pointed out [Ann. and Mag. Nat. Hist. (0), xiv, p. 68 (1894)] its 

 close affinity with tbe genus Lyctits, and expressed the opinion that 

 Walker's and Pascoe's insects belonged to the same species, although 

 brought from Ceylon and the Malay Archipelago respectively. Since 

 that time specimens have been received from various parts of the 

 world, and, although they show considerable variation, I have been 

 unable to find any sufficient reason for regarding them as representing 

 more than a single species. In Europe the same insect has been 

 again honoured with generic rank by Heitter, who has called it Lycto- 

 pholis foveicollis. Finally, a specimen found by Mr. Blackburn in the 

 Sandwich Islands was referred by him in 1885 to the Colydiid genus 

 Eulachus, to which it has little resemblance, as E. hispidus. The type 

 of the genus Minthea is a Brazilian insect, M. squamiyera, Pascoe, 

 closely related to the Oriental species, which should be known as 

 Minthea rugicollis, Walker. 



The other insect was first described in 1859 under the name of 



