SYSTEM OF INSECTS. 381 
patagia, or tippets, that adorn their evanescent thorax ?, 
and the ¢egula, or base-covers, of a shape quite dissimilar 
to those of Hymenoptera, which cover and defend the 
base of their wings>. As in the last Order, their legs 
are located all together with scarcely any space interve- 
ning between them; and they often agree also in their 
spurs. 
Der. Metamorphosis obtected¢. 
Mouth antliate4. 
Prothorax very short, covered by a pair of tip- 
pets. 
Wings four, covered partially or generally with 
minute scales: meuration branching, often 
with a central areolet. 
10. Diprera® (Antliata ¥.). This Order likewise ap- 
pears indebted for its name to the philosopher of Stagyra, 
who distinguishes the members of it from their counter- 
parts—the Hymenoptera by their having an oral, while 
these have an anal sting’: and we may add, that while 
the last, on account of their wonderful economy and the 
benefits which by them ProvipENcE confers upon man- 
kind, have been justly regarded as the princes of the 
winged insect world,—the former, when we consider the 
filthy and disgusting habits of their grubs, and the an- 
noyance, both from.their numbers and incessant assaults, 
of them, in their fly-state, may very properly be consi- 
dered as its canaille. Almost all the tribes of Hymeno- 
ptera, from the saw-flies to the ants, have their represen- 
* Vor. UL. p. 539. Prats IX. Fie. 4. > Ibid. Fre. 5. 
° Vou. I. p. 65—. 4 Vou. III. p. 469. 
© From 61s, twice, or double. £ Hist. Animal. 1. iv. c. 1, 27. 
