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hairy galls so frequently seen on the native roses, the product 

 of Cynips roscB\ and in this district (Custer County, Colorado), 

 a no less familiar object is a spherical but not hairy gall, 

 abounding on the prickly branches of the wild rose. The 

 specimens now exhibited were obtained at Swift Creek, on 

 February 26th, and some on being cut open were found to 

 contain living larvae. A few specimens being sent to the U.S. 

 Department of Agriculture at Washington, were pronounced 

 by Mr. L. O. Howard to be the product of an undescribed 

 species, Rhodites tubercidator, Riley MS., which, however, was 

 contained in the collection of the Department. In an old gall 

 I was fortunate enough to find a dead specimen of the imago. 

 It is about three millimetres long, almost black, and shiny. 

 The legs are reddish, and the wings tinged with brown. I 

 await the breeding of living examples to draw up a detailed 

 description, this example being too mutilated for the 

 purpose." 



Mr. Slater exhibited an example of a Bonibyx from Zulu 

 Land, which he said approached nearest to Bombyx oicbie, 

 taken by M. Guerin, in South Abyssinia,i^and might be a local 

 variety of that insect ; if not, it was a new species. 



Mr. C. H. Watson exhibited varieties of Hybernia lenco- 

 phearia, Schiff., from Richmond Park. 



Mr. R. Adkin remarked on the small size of the specimens, 

 and suggested that if this was the average size of the examples 

 taken this year it was no doubt attributable to the hot dry 

 summer of 1887. Mr. Watson said that they were a fair 

 average of those he had taken, and other Members remarked 

 that they had this spring seen many undersized examples. 



Mr. Tugwell exhibited two forms (grey and black) of both 

 sexes of Nyssia Jiispidaria, Fb., which he stated were bred 

 from one batch of ova from Richmond Park. In replying 

 to Mr. White he said that the larvae did not vary to any 

 extent, whereas in rearing the variety fuscata of Hybernia 

 marginaria, Bork., he had found that the black variety of the 

 larvs to a large extent produced dark varieties of the perfect 

 insect. 



Mr. Jenner Weir exhibited specimens of Pieris brassicce, L., 

 from St. Petersburgh, lat. 60°, Lewes and Blackheath, between 

 lat. 50° and 52°; Hyeres, lat. 43°; showing that the species 



