576 



I'HILOSOPHICAL TRANSACTIONS. 



[anno 1732. 



assert, that our coccus also is an insect of the hermaphrodite kind, which 

 brings forth eggs of itself, and from itself, and propagates its species without 

 being impregnated by a male. But the summer following he began to be sen- 

 sible that this opinion was erroneous, and about the end of it was quite con- 

 vinced of being in the wrong. 



Having repeated his observations with the greatest exactness, and examined 

 them in the strictest manner, at last he found that the metamorphosis, or evo- 

 lution, through which our coccus passes, is as follows: 



A. of the male. b. of the female. 



I. The egg. I. The egg. 



The eggs are laid about the end of July, or the beginning of August. 



II. A worm with 6 feet, no wings. II. A worm with 6 feet, no wings. 

 The worms come out of the eggs about the middle of August, till the be- 

 ginning of September. 



III. The less spherical grain ; that is, 

 the coccus, strictly so called, of the 

 size of a grain of poppy-seed, or millet 

 at the most, gathered from the Qth of 

 June till the summer solstice, with 

 other larger cocci. 



IV. The less worm with 6 feet, no 

 wings. It comes out of the above- 

 mentioned coccus, from the summer 

 solstice till the middle of July. 



V. The nymph which appears about 

 the beginning of July and the follow- 

 ing days. 



VI. The fly, the male coming out 

 from the middle of July till the 24th of 

 the same month, which impregnates 

 the worm, the female, marked N" IV. 



This insect, under whatever shape 

 male worm, a nymph, a fly, a female 



egg, always when pressed and crushed, affords a matter of a purple colour, 

 which however is observed to run most copious in the cocci and the worms, 

 especially the female ones. 



III. The larger spherical grain; or 

 the coccus of the size of a vetch, or 

 as large as that of white pepper, which 

 is gathered from the middle of June 

 till about the middle of July. 



IV. The larger worm with 6 feet, 

 no wings. That is to say, the female 

 coming out in the beginning of July, 

 but chiefly about the middle of the 

 said month; which being impregnated 

 by the fly the male N° VI, brings forth 

 the egg N" I. 



it appears, viz. either of a grain, a 

 worm, or a worm coming out of an 



