PAUTS OP INSECTS. 33 
domen^ S ° *' kewlse do tlle a PP en dices at the extremity of the ab- 
eaus 10 ^ ^ 01 - len C0nta,ns , * lc intestines, the ovary, and part of the or- 
stin t°' lcs V' ral ‘ on ; it is affixed to the thorax, and in most insects di- 
c trom it, forming the posterior part of the body, 
is l * le An a PP cn dage of any kind terminating the abdomen 
usually denominated the tail. These appendages vary in figure con- 
i erably in different insects, and many tribes are totally destitute of them . 
oy are supposed to be destined to direct the motion of the insect in 
'ght, to serve for its defence, and for the deposition of its eggs. In some 
insects this tail is simple, and yet capable of being extended and with- 
rawn at pleasure ; in others elongated. Some arc setaceous or bris- 
tle-shaped, as in the Raphidia. Those termed triset n have three bristle- 
shaped appendices, as in the Ephemera. In some it is forked, as in 
Podtira. W hen it terminates in a pair of forceps it is called forcipatu. 
In the Blatta and others it is follow, or resembling a leak In the 
Panorpa it is furnished with a sting, and is called telifera : this last may 
be more properly referred to the next. 
Acvlp.cs, die Sting: an instrument with which insects wound and in- 
stil a poison. The sting generally proceeds from the under part of the 
ast ling of the belly: in some it is sharp and pointed, in others ser- 
rated or barbed. It is used by many insects both as an offensive and 
e ensive weapon : by others it is used only to pierce wood, or the 
bodies of animals, in order to deposit their eggs J u wasps and bees 
the sting is known to be retractile. In some insects it exists in the male 
only, and m others nature has provided the female alone with 
this instrument: it is not frequently met with in both sexes of the 
same species, and the far greater number of insects have no such 
organ. 
AUTUS, die Members. 
exrr- 1 ^ ':’ insects the legs amount to six, and never 
larvr f number; and the same is observable of the true feet in the 
bn 1 1 1 ° . ‘ 03e lnsects i the latter have spurious feet to a greater amount, 
but the tm e feet do not exceed six. 
to live an ' I1SRC * ma y be divided into four, or more correctly in- 
thio-y. S : C° Ta } the first joint or haunch, at the base ; Femur , the 
of the- ‘ m ’ • S ' uu *k ’ Tarsus, die foot; and Unguis, the claw. Each 
v aries in ' v m ! s cnv( doped ' n a bard case of a homy substance, and 
beinn- adn '^n different insects, the form of the feet in all the kinds 
motion lT > J :Lt * a P teA t0 t ^ iclr mode of life and convenience of their 
recognise i,° m the different conformations of these limbs it is easy to 
destined hv rf*! 111 dead insect, the mode of life which the species is 
running oL? t0 purs,ie ’ Those which have the legs adapted for 
° alkln S have them long and cylindrical : the thighs of the 
