412 CLASS VIII. 
Sub-genera: Huplea Fasr., Danais Latr., [dea (Hestia) HurBy. 
DovuBLeDAy. 
Sp. Jdea Agelia Gopart, Papilio (Danaus candidus) Idea L., CRamER, UVitl. 
Kap. Tab. 193, figs. 4, A; Doupiepay 1. 1. Tab. 13, fig.1. Amboyna. The 
species of the sub-genus /dea are large, and have white or grey-white wings 
with black veins and spots. They all belong to the East Indian islands, 
or to New Holland. Of the sub-genus Danais, species are found both in 
the Western and Eastern hemispheres. 
Orper IX. Neuroptera. 
Hexapod insects, with four wings membranous, mostly trans- 
parent, reticulate, naked, most frequently equal. Mouth not suc- 
torial, but in most formed for manducation, with mandibles in some 
obsolete. Iemales never aculeate, very rarely furnished with borer 
or exsert oviduct. Metamorphosis in most incomplete, in others 
complete. Larve hexapod. 
Tendon-winged. Newroptera L., from vevpov, tendon, and repor, 
—Odonata and most Synistata of Fasricius, Veuroptera and T'richo- 
ptera Kirsy. On this order in general I am acquainted with no 
other special work than that of P. Rampur, Histoire nat. des In- 
sectes Néuropteres ; Ouvrage accompagné de planches. Paris, 1842, 
8vo, making a part of the Suites @ Burron by Rorer. Other 
works on particular families we shall indicate below. 
The Neuwroptera are insects with four naked, mostly transparent, 
wings, of which the veinures form a fine net-work. Usually the 
under-wings are as large as the upper ; in many species of Zphemera, 
however, they are very small, and in some entirely absent. The 
females have no sting ; 
ment for depositing eggs. Hereby they are distinguished from the 
Hymenoptera, as well as by the lower jaws with the under lip not 
being produced into a sucker. The number of joints in the tarsus 
is different in the different genera. 
Many insects of this order are, in the state of pupa and perfect 
insect, carnivorous and truly predaceous. The larve for the most part 
live in water (Phryganea, Semblis, Ephemera, Libellula). Some larvee 
spin themselves up when they change into pup. In the larva of the 
lion-ant the vessel which secretes the web, an oval sae, is situated in 
the abdomen ; it ends in a tube capable of extrusion ; by means of it 
the larva spins together granules of sand to form a round ball, within 
which it changes into a pupa. In the larve of the genus of the 
rarely only there exists a borer or an instru- 
