360 
AN EXPLANATION OF 
Annularis, round, the middle of the same colour with the rest of the 
wing. 
Delloideu, nearly triangular. 
Flexuosu, irregularly waving. 
MANDIBULfL, the mandibles. (See p. 28. PL 10. fg. 1 . d.) 
Manus, a foot shaped like the claw of a crab. 
MAnciNATiis, thorax, elytra, &,c. with a free 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, for the purpose of holding and 
comminuting the food. (See also p. 28. 17. to. Jig. 2. a.—b. c. 
maxillary palpi.) 
Dentate, the margins set with sharp pointed processes. 
I'orcipatie, like a pair of pincers. 
Furcate, forked, divided into two parts at the ends. 
Lunulata, thick in the middle, and smaller towards the base and the 
apex. 
Prominentes, placed straight before the head, and on the same plane. 
Mentum, the chin. This part is roost observable in the Lucunus Cer- 
t ms. 
MET AMOKPHOSIS. — The transformation of an insect from the larva 
to the pupa, and previous to its last or perfect state. The meta- 
morphosis ol insects is detined as follows. 
Coarctata, ol an oblong cylindrical shape with no part of the body vi- 
sible ; as in the Order Omaloptera. 
Incompkta, with motionless feet and wings ; as in Colevptera, Lepi- 
doptera, <$o. 
Semicompleta, when the pupa moves, eats, and has wing-cases ; as in 
Dermaplcra, Orthoptera, Dktyoptcra, llmiplcru, &/C. 
OCELLI (or Stemmata ), little shining eyes generally placed together on 
the crown of the head, lor the purpose of seeing objects at a di- 
stance and above the insect. 
Dioptrati, with a transparent pupil divided transversely by a small 
line. 
Sesquialter or Sesqniocel/us, a large ocellus inclosing a smaller one. 
OCULI, the eyes (see p. 21). All insects have at least two eyes: tlm 
Arachrwida have six or eight, arranged for the most part on the 
vertex or summit ol the head. They are subject to considerable 
variety in situation and shape, and are distinguished as und,er. 
Approximate when placed close together. 
Bint, two eyes, one placed on each side of the head. 
Colorali, of a different colour from that of die head. 
Compositi, furnished with many and often numerous lenses, for the 
purpose of seeing near objects and those at a distance. 
Concotorcs, of the same colour with the head and body. 
