118 STATES OF INSECTS. (Larva.) 
that of the eyes of a butterfly or moth, or other perfect 
insect, that it has been doubted whether they actually 
perform the office of eyes, but without reason. They 
occupy the usual station of those organs, being situated 
in many instances upon a protuberance which appears 
to incase them; and seem of a construction closely 
analogous to that of the eyes‘of spiders, and the stemmata 
or ocelli of Hymenoptera, which have been satisfactorily 
proved to be organs of vision. In the larva of a moth 
not yet ascertained to exist in this country, Agha Tau, 
and probably other species, the eyes, after the skin has 
been changed a few times, are no longer to be seen+. 
Antenne. Most larve are provided with organs near 
the base of the mandibles, which from their situation and 
figure may be regarded as antennz. Fabricius has as- 
serted that the larvee of the saw-flies (Serrifera) have 
no antennze; but in this he was mistaken, for though 
very short, they are discoverable in them, as he might 
have learned by consulting De Geer®. In the majority 
of Neuropterous larvee, they almost precisely resemble 
those of the perfect insect. In all the rest they are very 
different. The antennz of Coleopterous larva, are usu- 
ally either filiform or setaceous, consisting of four or five 
joints, nearly equal in length. Those of Lepidopterous 
larvee are commonly conicai, as are those likewise of 
Chrysomela and Coccinella &c. amongst the Coleoptera, 
and very short, composed of two or three joints, of which 
the last is much thinner than the first, and ends in one or 
two hairs or bristles. These antennz the larva has the 
power of protruding or retracting at pleasure. Lyonnet 
s 
* Pez. 188. ii, 923. ¢, xxxvi. f. 4, 64. Fabr. Philos. Ent. 60. 
