74 Mr. G. J. Arrow on Colcoptfira from 



and Majjazi no of Natural History' for allowing this paper, 

 as well as several previous papers, to appear in their periodical. 

 The tjn'ater part of the material uiuler review, especially of 

 ICndouiycliiihe, was collected by tlie writer in the endemic 

 forests of the mountains of the Seychelles during the second 

 expedition (1908-9), and this part includes two genera 

 (one of them new) and several species which are probably 

 endemic; but the collection also contains several wide- 

 ranging species which were taken not only in the Seychelles 

 ])ut also in some of the coral islands of the Chagos, Amirantes, 

 ami Far(iuhar Groups, by the members of the earlier (U. M.S. 

 ' Sealaik ') Expedition of 1905. The drawings for the figures 

 have been made by Miss O. F. Tassart. Two of the Jlndo- 

 niychidte were first discovered in the Seychelles by Professor 

 A. Brauer, and were reported on by Kolbe in 1910: references 

 to his work arc given below. — Hugh Scott.] 



Erotylidae. 



Of the four representatives of this family, three are wide- 

 ranging species previously known from other regions aiul 

 the fourth (congeneric with two of the latter) is known from 

 one specimen only. All are of a highly specialised type and 

 must be considered to be of relatively recent introduction. 



Genus Euxestus, Wollaston. 



The species of this genus show a marked preference for the 

 islands of the globe, ujion which they are commonly found 

 in great abundance, whereas from continental localities I 

 have seen only a few solitary specimens. The late M. Fauvel 

 recorded exam|)lcs introduced into France in a cargo of 

 ground-nuts. Owing to the peculiarity of their distribution, 

 the nomenclature of the speties is in an extremely tangled 

 state. Fauvel proposed a new family for the genus, calling 

 the insects Pleosomidse, on the unfortunate assumption of 

 their generic identity with a very different insect, P/eosoma. 

 Although he afterwards corrected this mistake (Rev. Ent. 

 1895, p. iOo), he continued to use the name Pieosomiclae in 

 his later paper of 1903. Pleosoma is so fundamentally 

 diflferent, in the organs of the mouth and other features, that 

 it is impossible to associate Euxestus with it in any way. 

 In my opinion this genus is best regarded as an aberrant 

 member of the Erotylidie, distinguished chiefly by the solid 

 club of the antenna. 



The recent Catalogue of the Erotylidae includes (under the 

 name Tritomidea) a part only of the known species oi Euxestus, 



