116 ARTHROPODA. 



Ephippigera. Stenobothrus. Hymenotes. 



Schizodactylus. Gomphocerus. Chorotj r pus. 



Acriditd*. Opomala. Pamphagus = For- 



- . Acndium. thetis. 



Proscopia. Caloptenus. Pneumora. 



Romalea. Tettix=Tetrix. 



Ouhpoda . = Pachy- C horiphyllum. Ommexecha. 

 tylus (Locust). 



EUPLEXOPTERA. Anal segment provided with a movable for- 

 ceps. Under wings folded both transversely and longitudinally. 

 No ocelli. 



The upper wings are very short, coriaceous, and without veins. 

 The antennas are filiform, with from twelve to forty joints. 



These are chiefly vegetable feeders, but some are carnivorous. 

 They are mostly nocturnal insects. 



Forficulid<e (Earwigs). 

 Labia. Forficula. 



Labidura. Brachylabis. 



Pygidicrania. Apachya. 



Order V. NEUKOPTEEA. 



Four more or less equal membranous wings, generally qgticu- 

 lated, rarely folded. Mandibulate. Pupa incomplete, more or 

 less resembling the imago, either quiescent or active. Larva 

 with six articulated legs. 



There are exceptions to all the leading characters of this order, 

 especially in the transformations, which are often of an anoma- 

 lous character. In the imago state the wings are sometimes 

 wanting, or only present in the male ; in Perlidse they are longi- 

 tudinally folded. In Ephemeridfe there are no mandibles. One 

 family, Termitidse, contains neuters of two kinds soldiers and 

 workers which, with the females, but only after pairing, are 



It will thus be seen that the order comprises several discor- 

 dant groups, dissimilar in their leading characters as well as in 

 their habits ; and their earlier states are equally diversified. The 

 four nearly equal wings are said best to distinguish them. 



Fabricius (Syst. Ent. 1775), in his purely artificial system, 

 classed spiders and centipedes with dragonflies in his order L T no- 

 gata ; a few years later (Mantissa, 1787) he proposed Synistata 

 for the remainder of the JSeuroptera, including also the Hy- 

 menoptera, as well as Oniscus, Monoculus, &c. 



