122 INSECTS. 



The Locustidse (see PL IV., fig. 5) differ from the 

 two preceding families in having short antennae, no drum 

 and file on the wing-cases of the male, no visible ovi- 

 positor in the female. The wing-cases shelve, as in the 

 Gryllidse ; the tarsal joints are three in number, as in the 

 Achetidee, and the chirping sound is produced by friction 

 of the legs and wing-cases. The English species are 

 found chiefly on the grass. 



The Locusts, so well known in the history of other 

 countries, are by no means unknown in England, more 

 than one species having found their way here on many 

 occasions. They were seen in Yorkshire in the cold 

 and wet season of 1845. In the year 1846, which 

 was hot, and in 1847, accounts were sent to various 

 papers of their appearance in all parts of the country. 

 In the month of September, 1846, they were found in 

 numerous places in and near London, in nearly every 

 county from Yorkshire to Cornwall, and even in 

 Scotland. 



In 1848, again, a flight arrived in the South of Eng- 

 land, especially in the neighbourhood of London, and a 

 few Locusts made their appearance in England in the 

 Autumn of 1869. 



Happily, however, these visitors, which were of several 

 species, have never yet been known to breed in England, 

 and we may, therefore, refuse to consider them as 

 belonging to our own country. 



