Xlll 



Pahearctic region generally, whilst the remainder are cosmopolitan in tliuir 

 distribution. 



" As regards the species, the most remarkable facts are the large 

 number of Lyccena and SatijniH, no less than forty-three of the former and 

 eighteen of the latter being included, so that about two-sevenths of the 

 whole number is made up of these genera, which appear to reach their 

 highest development in the country. The only dominant genus in Europe 

 which is not well represented in Asia Minor is Erebia, of whice we have 

 only four kinds against twenty in some districts of Central Europe ; other 

 species, however, probably remain to be discovered. An analysis of the 



species gives the following approximate results: — 



Species. 

 Sjiecies peculiar to Asia Minor, of which about half are very nearly 



allied to European species - - - - - - - 26 



Species peculiar to Asia Minor and countries to the east and north-east 



of it, as S. Russia, N. Persia, Syria - 18 



Species common to Asia Minor and Southern or South-Eastern Europe 40 

 Species common to Asia Minor or Europe — many of these found also 



in Western Asia - - - - - - - - - 61 



Species found very generally over the whole Palsearctic region - - 51 



196" 



Dr. Wallace exhibited a collection of Lepidoptera made by his son in 

 the United States of Columbia. 



Mr. W. L. Distant exhibited a West African specimen of the large 

 water-bug, Hydrocyrius Columhice, Spin., common also to Madagascar and 

 the Neotropical region. Similar in general appearance to the genus 

 Belostoma, Hydrocyrius is at once recognised by the possession of two fore 

 tarsal claws ; and in reference to the use of the tarsal claws generally, 

 Mr. Distant read extracts from a letter received from Mr. George Thomson, 

 of the Calabar district. That gentleman had forwarded a drawing of 

 H. ColumbicB, and stated that when he first obtained the insect he placed 

 it in a large basin of water, but observing it to float helplessly on the 

 surface, he placed a few small stones on the bottom, and to these it at 

 once clung tenaciously. On being afterwards transferred to a fish-globe, 

 Mr. Thomson describes it as " cHnging most furiously to the stones," and 

 when lifted as " raising a stone as large as a small hen's egg." Mr. Distant 

 thought the insect was probably a denizen of rapid currents, and by its 

 tarsal claws thus prevented itself from being swept away. 



The Secretary exhibited a specimen, in alcohol, of a trichopterous insect, 

 showing tracheo-branchia;, sent from Brazil by Dr. Fritz Midler, wiio 

 communicated the following note concerning it : — 



" I send you enclosed a trichopterous insect belonging to the family 

 Leptuccrida, which shows very distinctly the branchiae lately discovered in 



