350 



AN' EXl'l.ANATIO^' OF 



Annularis, round, the miclLlle of the same colour with the rest of llic 

 wing. 



Deltoidcii, nearly triangular. 



Flexuosu, irregularly \\aving. 

 MANDIBUL/E, the niandibies. (See p. '28. PL iO.JJg. 1. d.) 

 Manus, a foot shaped like the claw ofa crah. 

 Maugixatl s, thorax, elytra, Sec. with a tree elevated margin. 

 MAXILL/E, organs at the mouth, generally semicircular, pointed at 

 the ends, moving transversely, that is, horizontally, not perpendi- 

 cularly as in the human species, lor the purpose of holding and 

 comminuting the food. (See also p. 'J8. Fl. 10. Jig. '2. a. — b. c. 

 maxillari/ palpi.) 



Dcnfafa-, the margins set with sharp pointed processes. 



Forcipafie, like a pair of pincers. 



Furcafa, forked, divided into two jiarts at the ends. 



Litnulutce, thick in the middle, and smaller towards the base and the 

 apex. 



Proininentes, placed straight before the head, and on the same plane. 

 Mentim, the chin. This part is most observable in the iwc«m/s Cer- 



vns. 

 METAMORPHOSIS. — The transformation of an insect from the luna 

 to the pupa, and previous to its last or perfect state. The meta- 

 morphosis of ins(;cts is delincd as follows. 



Courctuta, of an oblong cylindrical shape \s ilh no part of the body vi- 

 sible ; as in the Order Omcdoptera. 



Incoiiipletd, with motionless feet and wings ; as in Coleoptera, Lepi- 

 dopteru, ^'C. 



Sen/icomp/cta, when the pupa moves, eats, and has wing-cases ; as in 

 l\'niuiptcru, Orthoptcra, Dirti/opfcra, Hciniptera, tVc. 

 OCELLI (or Stemmata), little shining eyes generally placed together on 

 the crown of the head, for the purpose of seeing objects at a di- 

 stance and above the insect. 



Dioptrati, with a transparent pupil di^•idcd transversely by a small 

 line. 



Seaquiulter or Sesquioc'ellus, a large ocellus inclosing a smaller one. 

 OCULT, th('(i/es (see ]>. 21). All //i.sa-/.s have at least two eyes: the 

 Aiachn'uida have six or eight, arranged for the most part on the 

 vertex ox summit of the head. They are subject to considerable 

 variety in sit\iation and shape, and are distinguished as under. 



Approxivmti, when placed close together. 



liini, two eyes, one placed on each side of the head. 



Colorati, ofa dift'crcnt colour from that of the head. 



Compositi, furnished with many and often numerous lenses, for the 

 purpose of seeing near objects and those at a distance. 



Concolores, of the same colour with the head and body. 



