198 IKSECTA. 



Geoffrey, but which are removed from them by the number of joints 

 in their tarsi, under the generic name of 



Semblis, Fah., 

 Which is composed of the following subgenera : 

 CORTDALIS, Lat., 



Distinguished by the mandibles of the male, which are very large 

 and resemble horns *. 



Chauliodes, Lat., 



Where the antennae are pectinated \. 



SiALis, Lat.^ 



Where the mandibles are moderate, as in 'the latter, and the an- 

 tennae simple as in Corydalis, and distinguished from the two pre- 

 ceding ones by the tectiform disposition of the wings. To this sub- 

 genus belongs the 



S. lutarius; Hemerobius lutarius, L.; Roes., Insect., II, Class 

 II, Insect. Aquat., xiii. Dead-black; light-brown wings thickly 

 intersected with black nervures. 



The female produces a prodigious number of eggs, which 

 terminate abruptly in a little point, on the leaves of plants or on 

 other bodies situated near water. The ova are implanted close 

 tegether, perpendicularly and symmetrically, and form large 

 brown plates. The larva inhabits the water, in which it runs 

 and swims with great swiftness. The sides of its abdomen, 

 like those of the Ephemerae, are provided with pseudo-branchiae, 

 and its last ring is elongated into a kind of tail, but it is meta- 

 morphosed into an immovable nymph, 

 4. A fourth division, that of the Termitin^e, will comprise Neu- 

 roptera, subject to a semimetamorphosis. They are all terrestrial, 

 active, carnivorous, or gnawers, in all their states. With the excep- 

 tion of the Mantispae, very distinct from all the Insects of this order, 

 by the form of their anterior legs, which resemble those of a Mantis, 

 the tarsi consist of four joints at most, Avhicb removes them from the 

 preceding genera of the same family. The mandibles are always 

 corneous and strong. The inferior wings are nearly as large as the 

 superior ones, and without folds, or smaller. 



Some have from five to three joints in the tarsi, and very distinct 

 and salient labial pal;-i. Their antennae are generally composed of 

 more than ten joints, the prothorax is large, and the wings are equal 

 and multireticulated. 



* Lat., Gen. Crust, et Insect., III. p. 199. 

 t Ibid., p. 198. 



