260 MODEUN SYSTEM. 



Stirps 2. — 21/// with three filaments. 



Genus 391. EPHEMERA of authors. 

 Sp. 1. Eph. vulgata. (P/. l.fg. 2.) 

 Inhabits marshes, and the banks of rivers. 



Section II. FILICORNES. 



Antenna longer than the head, not subulate : uings generally deflexedj 

 or incumbent. 



Fam. III. PAXor.piDx. Leach. 



Panorpat.?;. Latreilie. 



Jfearf anteriorly produced into a rostrum : zwwgs equal, ovate-elliptic, 

 lying one over the other : ocelli three, approximate, arranged in a 

 triangle. 



Genus 392. PANORPA. Linn., Fair., I^am., Latr., Leach. 



Tarsi with two bent claws, denticulated beneath, having a spongy pul- 

 villus between them : jxz/yji nearly equal, filiform; the last joint cy- 

 lindric-ovate : mandibles with their points distinctly bidentate : ahiio- 

 mcn of the male Aviththe three last joints forming a tail armed with 

 a forceps. 



Sp. 1. Pan. communis. {PI. 7. fig. 5. a. chela magnified.) 



Inhabits hedges, and is very abundant in tliis country. 

 Fam. IV. TIemfrobiad/f. J^nch. 



IIemerobini. Latreilie. 



Antenna filiform or setaceous : palpi four : wings equal : tarsi five- 

 jointed 



Stirps 1. — Ocelli or little eyes not distinct. 



Genus 393. CIIRYSOPA. Leach. Hy.uy.v.o-rw^, of authors. 



Antenna; (at least as long as the body) with cylindric joints longer than 

 broad. 



Sp. 1. Ch7ys. Perla. 



liemerobius Perla. Linne, Fair., Latr. Chrysopa Perla. Leach. 



Inhabits woods, and is a common species. 

 Genus 394. HEIMEROBIUS. Leach, <Sc. 



Antenmr as long or shorter than the body, with moniliform joints, 



Sp. 1. Hem. variegatus. 



Inliabits : is rare near London. 



Stirps 2. — Ocelli three, distinct. 



Genus 395. OSMYLUS. Lafr., Leach. IIemerobius. Fabr. 

 Villers, Rocmer, Don. 



Anlenn(e moniliform. 



Sp. 1. Osm. maculatus. Fuscous; head and feet testaceous: wings hairy, 

 the upper ones and the costal margin of the iul'erior ones spotted 

 with black. {PL 7.fg. 1.) 



