99 



XXVII. Synopsis of three of the Geiiera of ihe 

 Order Dermaptera. 



Mr. Kirby and myself about the same time perceived 

 the characters which distinguished this as a peculiar Order, 

 to which he proposed to give the name Dermaptera *. 

 Amongst the British species we have three genera, which' 

 may readily be distinguished by the number of joints in 

 their antennae, as well as by the characters of the instru- 

 ment a cikaria, Sec. 



Synopsis Generum. 



Genera. 

 ri4 - - - l.FORnCULA. 



Antennae articulis< 30 - - - 2. Labidura. 

 1 1 ^ - - - 3. Labia. 



Synonyma Generum. 



Gen. I. FoRFicuLA. 

 Forficula auricularia auctonon. ? F. neglecta Marsh. 



Gen. II. Labidura. 



Forficula gigantea. Fabr. 



Labidura gigaiitea. Leach Edinb. Encycl. 9. 118. 



Encycl Brit. Suppl. 1 . pi. 24. 



Gen. III. Labia. 



Forficula minor auctorum. S F. media Marsh, 

 Labia minor. Leach Edinb. Encycl. 9- 118. 



* Trans. Linn. Soc. xi. p.87 (note). 

 02 



