260 MODERN SYSTEM. 
Stirps 2. — Tail with three filaments. 
Genus 391. EPHEMERA of authors. 
Sp. 1. Eph. mi/gata. (PI. 7. fig. 2.) 
Inhabits marshes, and the banks of rivers. 
Section II. FIL1CORNES. 
Antenna longer than the head, not subulate : zoings generally defiexed’ 
or incumbent. 
Fam. III. Panorpid.t. Leach. 
Paxorpat.y. Latreille. 
Head anteriorly produced into a rostrum : wings equal, ovate-elliptic, 
lying one over the other : ocelli three, approximate, arranged in a 
triangle. 
Genus 392. PANORPA. Linn., Fabr., Lam., Lair., Leach. 
Tarsi with two bent claws, denticulated beneath, having a spongy pul- 
villus between them : palpi nearly equal, filiform ; the last joint cv- 
lindric-ovate : mandibles with their points distinctly bidentate: abdo- 
men of the male with the three last joints forming a tail armed with 
a forceps. 
Sp. 1. Pun. communis. (PI. 7 -fig- 5. a. chela magnified.) 
Inhabits hedges, and is very abundant in this country. 
Fam. IV. IIe.mekobi ad.'£. Leach. 
IIemerobini. Latreille. 
Antenna filiform or setaceous : palpi four : wings equal : tarsi five- 
jointed 
STir.ps 1 . — Ocelli or little eyes not distinct. 
Genus 393. CIIRYSOPA. Leach. Hemerobius of authors. 
Antenna (at least as long as the body) with cylindric joints longer than 
broad. 
Sp. 1. Chrys. Perla. 
Ilemerobius Perla. Linnc, Fubr., Latr. Chrysopa Perla. Leach. 
Inhabits woods, and is a common species. 
Genus 394. HEMEROBIUS. Leach, Sfc. 
Antenna as long or shorter than the body, with moniliform joints. 
Sp. 1. Hem. variegatus. 
Inhabits : is rare near London. 
Stirps 2. — Ocelli three, distinct. 
Genus 395. OSMYLUS. La.tr., Leach. Hemerobius. Fabr- 
Fillers, Rocmer, Don. 
Antenna moniliform. 
Sp. 1. Osm. maculatus. Fuscous; head and feet testaceous : wings hairy, 
the upper ones and the costal margin of the inferior ones spotte 
with black. (PI. 7. fig. 4.) 
