2570 The Zoologist — April, 1871. 



Mr. Miiller made some observations on the varieties of Coenonympha 

 Satyrion, from the Gemmi, exhibited by Mr. Butler at the last Meeting. 

 He had compared the specimens with those taken by himself in other parts 

 of Switzerland, and with the descriptions given by Swiss authors, and found 

 the species showed a considerable general tendency to variation. 



Mr. Verrall exhibited a dipterous insect, Pipiza noctiluca, taken by him- 

 self at Eannoch, to the head of which was adhering a foreign substance, 

 apparently a fungoid growth. Several members dissented from this 

 explanation of the nature of the substance in question, and thought it was 

 probably the pollen-mass of an orchid. 



Mr. Miiller exhibited a gall on a species of Carex, concerning which he 

 read the following notes : — 



" The present Lord Walsingham kindly sent to me, in the middle of 

 September last, a growing plant of an undetermined species of Carex, 

 collected near Thetford, in Noi'folk, pointing out to me at the same time 

 some curious galls on its leaves. They may be described as oblong, of the 

 size of a grain of wheat, and as attached longitudinally to the blades of the 

 Carex, sometimes in groups together. When fresh they were of a paler 

 green than the plant itself; in their present dry state they are coffee-brown, 

 and remind one vividly, by size and colour, of the brown cocoons of certain 

 Nemati. But this resemblance is only superficial ; they form part and 

 parcel of the plant, and derive, in their fresh state, their sap direct from 

 its tissues. They are monothaalmous. I potted the plant immediately on 

 arrival, but notwithstanding my constant attention I have failed to rear the 

 maker of these excrescences, so I record my observations so far, in the hope 

 that other naturalists will be luckier than myself." 



Papers read, dc. 



Mr. C. 0. Waterhouse communicated a paper " On a new genus and 

 species of LucauidiB (Apterocylus honolulensis) from the Sandwich 

 Islands." 



Mr. Wollaston communicated a memoir " On additions to the Atlantic 

 Coleoptera." In this paper he recorded the additions to the combined fauna 

 of the Madeiras, Salvages and Canaries, noticed since the publication of 

 his ' Coleoptera Atlandidum' in 1865. The new species were thirty-three 

 in number, but he had expunged two species from the list, leaving the total 

 number at 1480, as against 1449 in 1865 ; sixteen of the additions he 

 described as probably new to Science. The total number of species were 

 distributed thus : — IMadeiras 691, Salvages 27, Canaries 1013. Mr. Wol- 

 laston proceeded further to notice certain changes in nomenclature that had 

 become necessary ; and alluded to the discoveries of Mr. Godman in the 

 Azores, which, according to the list published by Mr. Crotch, seemed to 

 affiliate this group with the more southern Atlantic archipelagos. The 



