MODERN SYSTEM. 257 



Genus 377. ODONTOCERUS. Leuch. 

 Antenna with the inner edge denticulateJ. 

 Sp. 1. Odon. griscus. Leach. 

 Inhabits Ireland and England. 



Fam. II. Phryganid.i;. Leach. 



AntenniB as long as tlic body. 



Genus 378. PIIllYGANEA. Lend,. 

 Anterior zo'uigs soft, viilose. 



Sp. 1. Phr. grandis. 

 Inhabits woods. 



Genus 379. LIMNEPHILUS. Leach. 

 Anterior zvings slightly coriaceous, nervures hispid or hairy. 

 •Sp. 1. Lim. rhvnhicus. Leach. 

 Phryganea rlionibica. Linn. 

 Inhabits trees in woods and marshes. 



Order XII. NEUllOPTERA. Leach, Linn., Latr., Cuv. 

 Class Odoxata. Fubr. 

 Class Synistata. Fabr. 



Wings four, naked, reticulated, and divided into a vast number of 

 areolae. 



Section I. SUBULICORNES. 



Antenna subulate, very short, the last joint setiform : jnaxillari/ pafpi 

 very short: zcings extended horizontally or erect, very much leticu- 

 lated: inetatnorphosis semicomplete : larva and pupa aquatic, some- 

 what resembling the perfect insect. 



Fam. I. LiBELLULiD.E. Leach. 

 LiBELLULiN.^. Latrcillc. 



Tarsi three-jointed: mandibles strong, corneous: nnuiUa corneous, 

 strong : wings equal, or the hinder ones a little larger at their ba^e ■ 

 abdomen not terminated with setae or filaments : e>/es very laro-e. 



Stieps 1. — TI7«o^s horizontal: j^Pf/f/hemispheric, with a distinct vesicle 

 on which the little eyes are placed in a triangle : abdomen more or 

 less depressed: lip with the middle lamella smallest. 



Genus 380. LIBELLULA. Linn., Fabr., Latr., Leach. 

 Posterior zcings alike in both sexes. 

 Sp. 1. Lib. depressa. All the wings blackish at the base; the abdomen 



depressed ; of the male blueish, the female yellowish. 

 Libellula depressa. Linn., Fabr., Latr., Leuch. 

 Inhabits gardens and woods, Dying over them in pursuit of insects. 



