678 EXTERNAL ANATOMY OF INSECTS. 
in Acrida, Conocephala, Pterophylla; and in Truzalis, 
Pneumora, &c.; in Phasma there are none. In Mantis, 
if the terminal process of the cubitus is excluded, it will 
be 0:2: 2; in Gryllotalpa, admitting the terminal teeth 
of that part * as analogues of spurs, the number is 4:4: 4; 
in Tridactylus 0:0:5%; in Gryllus 3: 3:5; in Gryllus 
monstrosus, 4:4:6. In the whole Hemiptera Order I 
have discovered no instance of an insect furnished with 
the real spurs: for though in Cicada, Cercopis, &c., there 
are implanted spines in the posterior ¢2bza, and several 
at the apex, there are none of them clearly analogous to 
real spurs. In the Lepzdoptera the most general arrange- 
ment appears to be 1: 2:2; and next to this 1:2: 2. 
In this Order most commonly there is no spur at the 
end of the cubit, but one resembling a thumb © arms its 
middle; in Pontia, &c., this thumb is not present, so 
that the number is 0: 2:2; in Agarista, Erebus, &c., 
you will find 4: 2:4, the posterior calcaria being all 
terminal; and in Attacus Atlas, all these organs are ob- 
solete except the thumb. In the Newroptcra the most 
general arrangement is 2:2: 23; but in the Lzbellulina, 
although the legs are very spinose, there are no spurs. 
In the Trichoptera, in Limnephilus rhombicus and affini- 
ties, the number of them is expressed by 4:3: 4; and 
in those with long autennee, Leptocerus atratus, &c., by 
2:2:2, In the Hymenoptera the number 1:2: 2 is’ 
most prevalent; and next to this, as in Apis L., 1: 1: 2, 
In the Chalcidites or minute ichneumons, the spurs are 
1:1:1; in Gcodoma, a kind of ant*,1:0:0. Inthe 
2 Prats XV. Fic. 6. v’”’. > Coquebert Llustr. Te. iii. 
t. xxi. f. 3. D. © Prate XXVII, Fie. 29, v!". 
4 Most of Latreille’s genera ef ants are confirmed by differences 
