XXXI 



seemed to constitute a distinct four-footed tribe in the family Acaridas, 

 distinguished likewise by having the whole surface covered with minute 

 tubercles (like the parasite of the human nose) arranged in as many as sixty 

 transverse rows ; at any rate they required to be segregated under a separate 

 generic name, and he proposed that of Acarellus, the three species being 

 Acarellus pyri, A. ribis-nigri, and A. gallarum. 



Mr. Albert Miiller suggested that these forms perhaps belonged to the 

 already-named genus Phytoptus, or Phytopus, the species of which inhabit 

 excrescences of various plants, have at one stage of their existence only four 

 legs, and are closely allied to Simonea foUiculorum. He referred to papers 

 by Frauenfeld in Verh. zool-botan. Ges. Wien, vol. xv. (1865), and Landois 

 in Zeitsch. f. wiss. ZooL, vol. xiv. (1866). 



Papers read. 



The following papers were read : — 



" Further Observations on the Relation between the Colour and the 

 Edibility of Lepidoptera and their Larvae"; by Mr. J, Jenner Weir. 



" List of Species in a Collection of Butterflies sent by Mr. Henry Ansell 

 from Kinsembo, South Western Africa " ; by Mr. A. G. Butler. 



" Contributions to an Lisect- Fauna of the Amazon Valley " (Coleoptera, 

 Cerambycidae) ; by Mr. H. W. Bates. 



" List of the Hymeuoptera collected by Mr. J. K. Lord in Egypt and 

 Arabia , with Descriptions of the New Species " ; by Mr. Francis Walker. 



New Part of ' Transactions.' 

 The second Part of the ' Transactions for the year 1870," published in 

 June, was on the Table. 



7 November, 1870. 

 H. W. Bates, Esq., Vice-President, in the chair. 



Donations to the Library. 

 The following donations were announced, and thanks voted to the 

 donors : — Catalogues of Lepidoptera, Hemiptera Heteroptera, Dermaptera 

 Saltatoria, and Myriapoda, in the Collection of the British Museum; 

 18 parts, presented by the Trustees of the Museum. ' Proceedings of the 

 Royal Society,' Nos. 121, 122 ; by the Society. ' Transactions of the 

 Linnean Society,' vol. xxvi. pt. 4, vol. xxvii. pts. 1 and 2 ; ' Journal of the 

 Linnean Society,' Zoology, No. 49 ; by the Society. ' Journal of the Agri- 

 cultural Society,' 2nd ser., vol. vi. pt. 2 ; by the Society. ' Journal of the 



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