( xi ) 



Papers read. 



Mr. R. M'Lachlan read " A revised list of British Trichoptera, brought 

 down to date, and compiled with especial regard to the ' Catalogue of British 

 Neuroptera' published by the Society in 1870." That catalogue included 

 136 species; 152 were now enumerated. Twenty additions had been made 

 to our Fauna in the twelve years ; three of the old names were now treated 

 as synonyms, and the evidence of the British origin of Philopotamus 

 nwntamis was now considered insufficient. 



Mr. W. L. Distant read " Descriptions of new species and a new genus 

 of OicadidcB from Madagascar." He remarked that the distinct character 

 of the Rhynchotal fauna of Madagascar was specially marked by the fact 

 that every species of the widely distributed genus Platypleura received from 

 that island was new to Science. 



Mr. A. G. Butler communicated a continuation of the " Heterocerous 

 Lepidoptera collected in Chili by Thomas Edmonds, Esq. Part III. 

 Geometrites." In this paper 136 species of Geometra are included, 

 a large proportion of which are new to Science. Mr. Butler remarked on 

 the vague descriptions given by Blanchard in Gay's ' Fauna Chilena,' and 

 on the inaccurate illustrations in the 'Atlas.' Mr. M'Lachlan said most of 

 Blanclaard's types were preserved in the Museum at the Jardin des Plantes, 

 Paris. 



July 5, 1882. 



H. T. Stainton, Esq., F.R.S., &c., President, in the chair. 



Donations to the Library were announced, and thanks voted to the 

 respective donors. 



Election jyf a Foreign Member. 

 Senor Carlos Berg (Museo Publico, Buenos Ayres) was balloted for and 

 elected a Foreign Member of the Society. 



Exhibitions, Sc. 



Sir Sidney S. Saunders exhibited winged specimens of Cerataphis 

 latanicB, Boisd., received from M. Jules Lichtenstein, of Montpellier, who 

 referred to it as " a very rare form of a common Aphidian of hothouses." 

 This Aphis was described by Boisduval as a Coccus, and by Signoret as an 

 Aleurodes. 



Sir Sidney Saunders also read the following note contributed by 

 M. Lichtenstein: — 



" My observations upon plant- and bark-lice lead me to think that the 

 male sex is but a stage of degradation in animals ; the original type of all 



