162 STATES OF INSECTS. (Larva.) 
racters; and then going through the orders, shall give 
you the examples of each, with such observations upon 
them as the case may require. 
Primary Forms of Larve. 
APTERA. ARACHNIDA. CRUSTACKA. MOLLUSCA. 
ANOPLURIFORM. ARANEIDIFORM. IsopopIFoRM. LimMAciIFoRM. 
THYSANURIFORM. ONIsCIFORM. 
CuILopoDIFoRM. IpoTEIFORM. 
CHILOGNATHIFORM. AMPHIPODIFORM. ANNELIDA. 
SToMAPODIFORM. VERMIFORM. 
DeEcaroDIFoRM. 
BrANCHIOPODIFORM. 
Characters. 
1. Anopluriform. Carnivorous; hexapod; antenniferous : 
with a shortish oblong depressed body, and distinct 
thoracic shield. Example: Psocus, Coccinella, most 
Hemiptera *. 
2. Thysanuriform. Polyphagous; hexapod; antenni- 
ferous: body with segments of trunk distinctly 
marked; anus often furnished with setae or mucro. 
Ex. Meloe’? Thrips, Aphis. 
@Prare XVIII. Fic. 1. as to the thoracic shield. 
> May 27, 1822. This day, T. Allen, Esq. F.L.S. brought me in 
a phial a vast number of the little insect which Goedart, Frisch, and 
De Geer took fer the larva of Meloe Proscarabeus, which he found 
on the leaves of Achillea Millefolium. These little animals were 
coursing each other with wonderful velocity over the sides of the 
phial. ‘To assist them in their motions, they applied to the surface 
of the glass the end of their abdomen, using it like many larve of 
Coleoptera, as the seventh leg. This circumstance excited a suspicion 
in the minds of both Mr. Macleay sen., then visiting me, and my- 
self, that after allthey might be coleopterous larvae. One, amongst 
other circumstances, however, seemed to militate strongly against 
this opinion ; namely, that in this infinite number none appeared to 
differ in size. 
