cxcii Proposed Division of Neuroptera 



Wings greatly longer than the body : fore-legs 



simple: tarsi 4-join ted TermitidvE, Newm. 



non Leach. 



Wings no longer than the body : fore-legs di- 

 lated : tarsi 3-join ted Embiam:, Newm. 



Characters of Psocina. 



Larva generally arboreal, with long setaceous, multiarticulate anten- 

 nae, exserted head, hemispherical and widely distant eyes, corne- 

 ous mandibles, narrow but distinct leg-bearing segments, obese 

 ovate abdomen, with two caudal papillae : found on the bark 

 and leaves of trees, among dried plants in herbaria, on preserved 

 specimens of insects, among old papers, &c, and feeds on these 

 various substances. 



Pupa resembling the larva in figure, habits, and food, but with 

 rudimentary wings at the posterior angles of the wing-bearing 

 segments. 



Imago with the antennae, mouth, and general figure of the larva and 

 pupa, but a narrower pro thorax and 4 wings, whereof the ante- 

 rior pair are ample and variously veined, the hind wings are 

 smaller, with fewer veins, and slightly folded longitudinally, the 

 wings are recumbent and deflected, having something of that 

 roof-like character which distinguishes the Stegoptera : the fe- 

 male lays her eggs on the leaves and bark of trees, and com- 

 monly spins a slight web over them by way of protection ; they 

 run with great celerity, fly rarely and awkwardly, and appear to 

 feed on the same substances as the larva and pupa. 



The whole of this group is at present comprised 



ill the family , Psocid.e, Leach. 



Characters of Thripsina. 



Larva hexapod, fusiform, and slightly depressed, with inserted head, 

 lateral and simple eyes, and an equal development of the leg- 

 bearing segments : feeds on bark, leaves and flowers of plants. 



Pupa resembling the larva in figure, habits, and food, it differs in 

 its slower movements, in the less equal development of the leg- 

 bearing segments, in having its antennae bent back on the sides 

 of its head, and in having its wings distinctly visible, attached 

 in a rudimentary form to their respective segments. 



Imago of the same general figure, habits, and food as the preceding 



