THE TERMS USED IN ENTOMOLOGY*. 
343 
Marginatum, with a free elevated margin. 
Muticum, not furnished with horns, spines, or tubercles. 
Nutans, fixed transversely at right angles with the thorax. 
Porrectum, prominent and elongated. 
Prolongation tubo, the apex running out into a tube. 
Prominens, on the same plane with the thorax, but narrower. 
Retractile, capable of being drawn at pleasure within the thorax, and 
concealed there. . . , , , 
Retractum, placed within the thorax, and not to be distinguished from 
Rugosum, wrinkled, marked with waved and elevated lines either 
longitudinally or transversely. 
Tuberculatum, rough with rigid prominent warts or tubercles. 
CAUDA, the Tail, a part affixed to the extremity of the abdomen, (ace 
p. 33). . 
Aristata, terminating in a bristle or slender thread. 
Riseta, having two slender attenuated sets. 
Foliacea, spreading out like a membrane. 
Rostrata, standing out like a beak. 
Setosa, elongated, slender, gradually attenuated. 
Triqudra, having three plane sides. , 
Triseta, having three slender attenuated sets, as in Ephemera. 
Chela, the extreme part, of the foot, with a moveable lateral toe li e 
the claw of a crab. _ . , . 
Chrysalis, (the pupa of those Papiliomda that are often of a golden 
colour) synonymous with Pupa . 
Cicatrix, an elevated and somewhat rigid spot. 
Cingula, coloured bands or belts surrounding the abdomen. 
Clypeus, a horny horizontal part of the head covering the mouth. 
(See p. 30.) 
Coleoptra, both elytra. , , 
COLOR.— The colour of insects varies greatly, and it frequently oc- 
curs that the species cannot be determined by this alone. Many 
circumstances will tend to alter the colour ; as a change of food, 
the age, &c. and such casualties should be allowed for. In study-* 
ing die species and arranging varieties, the extreme of both light 
and dark specimens should always be retained. 
Mrughwsus, light blueish green, like verdigrise. 
Albus, dull white. 
Albhlus, dirty dull white. 
Ater, the purest and deepest black. 
Atro-purpurcus, very dark red, almost approaching to black. 
Atro-virens, dark green, bordering on dark blue. 
Aureus, gold-yellow, without any foreign mixture. 
