feUEMEISTER. — LATREILLE. XXV 



froghoppers, to the numerous small insects now com- 

 prised in the Jassidge and other groups. 



Swammerdam styled these smaller insects Sauterelles- 

 puces. Linnseus divided the Cicada into sections 

 which were chiefly ruled by the forms of the thorax, 

 whilst Scopoli took into account the more or less 

 coriaceous character of their elytra and wings. 

 Fabricius at first constructed four genera, viz., Mcni- 

 hracis, Tettigonia, Cicada, and Cercopis. To these he 

 afterwards added Flata and Delphax. He enumerates 

 many foreign and British species, but their identifica- 

 tion is now almost impossible, from the shortness of 

 the descriptions he gives. 



Much valuable information may be got from 

 Burmeister's 'Manual of Entomology,' an excellent 

 translation of which was made by W. E. Shuckard in 

 1836. The book, however, labours under the disad- 

 vantage of containing no Index, and consequently 

 every particular subject must be hunted up from 

 chapter to chapter. In Burmeister's treatise, the 

 " Cicadinas " come under discussion in connection 

 with their comparative anatomy. He groups them 

 with insects of imperfect metamorphosis, — that is to 

 say, with those having the larva, pupa, and imago 

 active, and strongly resembling each other. The pupa3 

 of Cicadinse also possess locomotive powers, and are 

 capable of eating. They belong to that branch of the 

 Hemiptera which have suctorial mouths and homoge- 

 nous elytra. 



In Burmeister's ' Genera Insectorum ' (Ehynchota, 

 1838), there is a pretty full description of the then 

 accepted genera of the European Cicadinse : the 

 descriptions are supplemented by some beautifully 

 coloured plates of the winged forms, which illustrate 

 various genera. 



Leon Dufour, amongst the numerous dissections 

 of insects he made, published in 1838 some valuable 

 engravings of the nervous, alimentary, and reproductive 

 system of the foreign icsect, Cicada omi. Notice of 



