( li ) 



December 4, 1889. 



The Et. Hon. Lord Walsingliam, M.A., F.E.S., President 

 in the Chair. 



Donations to the Library were announced, and thanks voted 

 to the respective Donors. 



Election of a Fellow. 

 Prof. Franz Klapalek, of the Zoological Department, Eoyal 

 Museum, Prague, was elected a Fellow of the Society. 



Exhibitions, dc. 



Mr. W. L. Distant exhibited, on behalf of Mr. Lionel de 

 Niceville, a branch of a walnut tree, on which was a mass of 

 eggs laid by a butterfly belonging to the Lyc(£nidcB. He also 

 exhibited two specimens of this butterfly which Mr. de Nice- 

 ville had referred to a new genus and described as ChcBtoprocta 

 odata. The species was said to occur only in the mountainous 

 districts of North-West India, at elevations of 5000 to 10,000 

 feet above the sea-level. 



Dr. D. Sharp exhibited the very remarkable eggs of Piezo- 

 sternum suhulatum, Thunb., a bug from S. America. These 

 eggs were taken from the interior of a specimen which had 

 been allowed to putrify before being mounted, so that the 

 contents of the body had afterwards coagulated into a mass of 

 dirt, in which the eggs were embedded. Although the parts 

 of the body of the parent had thus completely rotted away, 

 the eggs were in a perfect state of preservation, except that 

 they were completely encrusted with the black dirt resulting 

 from the decay of the parental tissues ; indeed, the materials 

 inside the eggs were still quite fresh, though it was many 

 years since the insect was killed, and the cellular condition of 

 the yelk was very conspicuous. The egg is cylindrical, fully 

 2 millim. long, and 1 millim. in diameter; one end is rounded, 

 the other truncate ; the truncate end is set along the margin 

 with erect processes which may be compared to small-headed 

 nails, the points of which are driven into the cut margin of 

 the egg-shell ; inside these processes the egg is closed by a 

 densely-sculptured, quite circular operculum, on the centre of 



