ORISMOLOGY. 267 
somewhat resembling cork a . The galls of some 
species of Cynips when mature approach to this 
substance. 
9. Spongiose (Spongiosa). A soft elastic substance re- 
sembling sponge. — Ex. The Pulvilli of Thanasi- 
mus, Buprestis, Sec. 
10. Ligneous (Lignosa). A hard unelastic substance 
like wood. — Ex. Galls of some species of Cynips. 
11. Carnose {Carnosa). A soft, Jleshy substance. — 
Ex. Caterpillars and Grubs. 
12. Tubulose (Tubulosa). When the interior is hol- 
low or empty. 
13. Solid (Solida). When the interior is fidl. 
II. RESISTANCE. 
1. Rigid (Rigida). Hard, which does not bend or yield 
to pressure. — Ex. The weevils (Rhyncophora). 
2. Flextle (Flexilis). Which easily bends, or yields to 
pressure without breaking. — Ex. Elytra of Tele- 
phorus. 
3. Soft {Mollis). Flexile and retaining the marks of 
pressure. — Ex. Elytra of Meloe. 
III. DENSITY. 
1. Foliaceous (Foliacea). Very thin and depressed, 
scarcely thicker than a leaf. — Ex. Aradus corticalis 
and Coreus paradoxus. 
2. Depressed (Depressa). When the vertical section 
is shorter than the transverse. — Ex. Trogosita mau- 
ritanica. 
' Wc use this term because suberosa is employed in a quite differ- 
i in sense. 
