134 



The Natuealist. 



Millthorpe, Lincolnsliire, several at Wisbeach, and eight at Cromer, 

 Norfolk. 



Of all the specimens recorded for 1847 only one occurred to the 

 west of the central watershed line. 



In noticing the occurrences in the preface to the Zoologist for 1847, 

 Mr. Edward Newman hints at a record in some local paper or other, 

 of locusts actually picked up at sea during that year. 



We are in as great uncertainty as ever as to the name of the 

 species j most recorders, not knowing the specific differentiation, call 

 it G. migratorius ; and Mr. Joseph Duff says of the Bishop Auckland 

 specimens that they are " certainly the Gryllus migratorius of 

 Linnseus." On the other hand Mr. Edward Newman states that 

 " the specific identity of our locust with the Gryllus migratorius of the 

 continent is not satisfactorily made out ; Mr. Bracy Clark has 

 obligingly handed me Egyptian specimens which are evidently 

 distinct." {Zool. 1847, v. 1900.) 



As to the probable impelling cause of the invasion of 1847 Mr. 

 Matthew Couch writes that it is very obvious that they have not been 

 impelled by boisterous winds, as on the contrary the summer was 

 very calm for two or three months previous ; it was also genially 

 warm, while not excessively hot. He adds that they seem to have a 

 repugnance to humidity and to a tendency to chill. 



1848. 



Mr. E. C. Rye placed on record {Ent. W. Int.^ Oct. 3, 1857, iii. 

 7-8) that the Gryllus migratorius is of constant occurrence on the 

 south coast, and that he had taken it so long ago as 1848 at Herne 

 Bay, where it was quite plentiful in that year, and he understood that 

 specimens are of frequent occurrence about Margate. I am not aware 

 of any other records of locusts during this year. 



1849. 



At the Entomological Society's meeting on the 21st of March, 

 1870. Mr. J. W. Dunning exhibited a locust taken near Thirsk, in 

 the autumn of 1849 ; the prothorax was flat and constricted in front, 

 and he thought the insect to be the true Gryllus migratorius of Linne. 

 This is the only specimen that I can find on record for the year 1849. 



In consequence of my not having access to any sources oi informa- 

 tion on the subject, there is a considerable blank in my series of 

 records, extending from 1849 to 1856. 



1857. 



The invasion of 1857 appears, from the very scanty indications 

 given in the Entomologists' Weekly Intelligencer to have been not only 



