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XII. A Revision of the Suh-family Pelidnotinse of the 



Coleoptero^is family Rutelidaj, vjith descriptions of 



. new genera a.nd species. By the late Frederick 



Bates. Communicated by Gilbert J. Arrow, 



F.E.S. 



[Rccad March 2n(l, 1904.] 



It has been a sad satisfaction to me to prepare for publica- 

 tion this last fruit of the devoted labours of one of the 

 most exact and conscientious of British entomologists. 

 Although compressed into a very small compass, this 

 Revision of a difficult group of beetles represents many 

 months of constant and strenuous investigation, continued 

 to within a very few days of my friend's death. It was 

 the author's intention to somewhat extend the dimensions 

 of the paper, but although, when conscious that it was not 

 in his power to fulfil his purpose, he committed it to me 

 to deal with at my entire discretion, I have thought it 

 best to make only such additions as were absolutely 

 necessary to fit it for publication. With the exception 

 therefore of a very few additions to, and consequent slight 

 modifications of, the synoptic tables, necessary to render 

 them complete, and the description of one new genus pro- 

 posed by Mr. Bates for a species of ray own, I have confined 

 myself to a purely editorial function. 



The types of the new forms described in the paper are 

 now in the British Museum Collection, with the exception 

 of three unique specimens in the Royal Museum at 

 Brussels, Gilbert J. Arrow. 



The great accumulation of new forms, in every family of 

 the Coleoptera, since the publication of Lacordaire's great 

 work, the "Genera des Coleopteres," has had the natural 

 result of necessitating a revision of the classification and 

 composition of the groups, as given in that work. 



In the following paper I have endeavoured, to the 

 best of my means and abilitj^ to accomplish this for the 

 sub-family Pelidnotinse. The leading character given by 

 Lacordaire to distinguish his "Pelidnotides" from his "Eutel- 

 ides vraies" is : — the thorax entirely margined at the base. 



TRANS. ENT. SOC. LOND. 1904. — PART II. (JUNE) 



