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resembling the end of a tippet; and the other a leg furnished with 
hooks. 
The abdomen has the form of an elongated, or in the majority 
of species, an almost cylindrical oval. It is composed of five 
segments, each formed of an upper and a lower ring, joined together 
bya membrane. The first are larger than the others, and generally 
overlap the edges, which gives to this part of the body the power | 
of dilating considerably. 
We must dwell longer on the head. It is generally rounded, com- 
pressed in front, longer than it is broad, and furnished with fine or 
| scaly hairs. The important organs of which this part is the seat, 
are the eyes, the antenna, the palpi, and the proboscis or trunk. 
The eyes are more or less spherical, surrounded by hairs and 
composed of innumerable facettes. One often sees on these, ra 
colours as various as those of the rainbow. But the colour 
| which serves as a base to all, is black in some, grey in others ; cel 
| then again there are different gold or bronze-colours of the greatest 
splendour, inclining sometimes to red, sometimes to yellow, some- 
times to green. On the compound eye of a butterfly have been ear 
counted as many as 17,325 facettes. Simple eyes or stemmata ewe 
are moreover observed in certain species, and are generally more oor 
or less hidden by scales. The antenns are situated near the By 
upper rim or border of each eye. Réaumur has pointed out six a 
principal shapes. One terminates in a little knob, and belongs to 494 
the butterflies. The others are variously shaped, and belong to bis 
the moths. Some are prismatic, or like beading. And lastly aa 
others are shaped like feathers. We represent in Fig. 137 the 2) 
different forms of the antenne, which Réaumur collected together rt 
in plates 8 and 9 of his fifth memoir.* ah 
The palpi are four in number, two maxillary and two labial. 
The first are generally excessively small; one can only ascertain 
their existence by the aid of a strong magnifying glass; the 
second are in general very apparent, straight, cylindrical, covered 
with scales, and formed of three joints, of which the last is often 
very small and sometimes very pointed. They also sometimes 
bristle with stiff or silky hairs. 
The trunk is placed exactly between thé two eyes. As long as 
* “Sur les parties exterieurs des papillons,” tome i. p. 197. 
