410 ATTEMPTED DIVISION OF BRITISH INSECTS. 



Nematus, Cladius, Croesus, Emjihytus, Dolerus, Dosytheus, Allan- 

 tus, Fenusa, Selandria, Athalia. 



Natural Order. — Hylotomites. 



Larva cylindrical, rather attenuated towards the extremities, with 

 six articulated and fourteen membranaceous legs. Inhabits and 

 feeds on the leaves of vegetables ; changes its colour with every 

 change of skin, a peculiarity to which some of the AUantites are 

 also subject, Pupa changes mostly on the surface of the ground. 

 Imago, with the antennae three-jointed ; the basal and second 

 joints very short, the third very long, ciliated, and often double, or 

 having two shafts in the manner of a fork ; mandibles corneous, 

 acute, with a small internal tooth ; maxillae with the blade acute, 

 the galea robust and obtuse, the feeler long and six-jointed ; 

 labium short, with the ligula small, but distinctly trilobed ; feelers 

 four-jointed ; ocelli three; body, with the segments and oviduct, 

 as in the AUantites. Settles and feeds on umbellate flowers. 

 Schizocerus, Hylotoma. 



Natural Order. — Tenthredinites. 



Larva mostly chagreened, cylindrical, with six articulate and twelve 

 prehensile legs. Feeds on the leaves of trees. Pupa changes in 

 a case composed of a glutinous matter, which becomes very hard 

 when exposed to the air ; the case is attached to a slender twig of 

 the plant on which the larva feeds ; in this case the larva remains 

 unchanged during the months of autumn, winter, and spring. 

 Imago, with antennae seven-jointed, of which the third joint is 

 always elongate, and the apical ones always form a club ; the 

 mandibles are longer than in the preceding order, acute at the 

 apex, and internally bidentate ; maxillse, with the lacinia, obtuse 

 and hirsute, the galea rather obtuse and distinctly articulate, and 

 the feelers long and six-jointed ; labium short, with the ligula 

 distinctly trilobed, the feelers four-jointed; ocelli three ; segments 

 of the body fully developed ; oviduct as in the AUantites. In- 

 habits flowers and leaves ; flies in the sunshine. Abia, Zarcea, 

 Cimbex, Trichissoma, ClaveUaria. 



Natural Order. — Lydites. 



Larva smooth, cylindrical, with six short, articulate, and no prehen- 

 sile legs. Feeds on the leaves of trees, inhabiting a web of its 

 own making. Pupa changes in a silken cocoon on the stem of 

 the trees it inhabits, or on the ground. Imago, with the antennae 



• composed of seventeen to thirty segments, filiform, and attenuated 



