Entomological Society. 7535 



variable, the typical specimens from Russia being smaller and darter than those of 

 Western Europe. 



Mr. StaintoD exhibiled cases of two species of the long-horned moths. One case, 

 which belonged either to tlie genus Adela or the genus Nemophora, was composed of 

 several pieces of brown leaves added in succession : the larva inhabiting this sort of 

 case were feeding on withered oak-leaves. The other case, which probably belonged 

 to the genus Nemotois, was formed by successive additions around a brown oval 

 nucleus, and was much contmcted in the middle : the larvae inhabiting this case were 

 feeding on the green leaves of Ballota nigra. The Adela ? cases were found by Mr. 

 Healy, at West Wickhara, by searching amongst the fallen oak-leaves. The Nemo- 

 tois? cases were collected by Herr Schmid, of Frankfort-on-the Maine, around plants 

 of Ballota nigra, the lower leaves of which were much eaten by them. 



Mr. F. Walker exhibited a large box of North-American Hemiplera, and made 

 the following remarks, which occurred to him while inspecting this collection : — " It 

 is well known what a great affinity part of the fauna of North America bears to that 

 of Europe ; and this likeness between the two faunas increases northward until they 

 become nearly identical ; and there are indications that the separation between the 

 eastern and western continents took place at a later period in the northern regions 

 than in the southern regions. The separation between the northern fauna and the 

 southern fauna is much less complete in the western countries than in the eastern 

 countries; and this is owing to the divisions in the latter by means of seas and moun- 

 tains, which are comparatively wanting in the western continent. The fauna of the 

 Central Slates of North America and that of the eastern slope of the Alleghany moun- 

 tains appear to be equally similar to that of England ; and in the plains of the United 

 States the faunas of the north and of the south are comparatively mingled together, 

 whereas in the regions of the Old World they are nearly separate, and in the southern 

 part the northern fauna only appears on the mountain ranges. I will conclude by 

 enumerating a few of the species iu this box which appear to be most nearly allied to 

 the British Hemiptera, or to be identical with them : — 



Coremilaena unicolor Tingis hyalina 



„ pulicaria Reduvius personatus 



Ophthalmicus niger Nabis ferns 



Anthocoris pseudo-chinche Hebrus americanus 



Neides spinosus Gerris apterus 

 Lygasus linearis „ marginatus 



„ bioculatus Ranatra fusca 



Eurymei'ocoris nigritulus Corixa annexa 



Rhopalus maculigerus Aphrophora quadrinotala 



Sulda laeta Psylla diaphana 

 Zosmenus latus 



The American Reduvius personatus seems to be sufficiently distinct from the British 

 species to be entitled to receive a new name.'' — E. S. 



