52 EXPLANATION OF TERMS 



Flavous-us: sulphur yellow [gamboge]. 



Flavo-virens: green verging upon yellow [apple green + chrome yellow]. 



Flex: to bend: to curve back. 



Flexible: pliable; with elastic properties. 



Flexile -is: capable of being bent at an angle without breaking: flexible. 



Flexuous -ose: almost zig-zag, without acute angles but more acute at 

 angles than undulating: differs from sinuate in being alternately bent and 

 nearly straight. 



Flexor: that which bends; applied to muscles. 



Flocculus -i: a hairy or bristly appendage on the posterior coxa of some 

 Hymenoptera. 



Floccus: a tuft of wool or wool-like hair. 



Flosculiferous: species that bear a flosculus. 



Flosculus: a small, tubular, lunulate anal organ with a central style, in cer- 

 tain Fulgorids. 



Fluviatile: inhabiting the margins of running streams. 



Fly-blows: eggs or young maggots of flesh flies: meat is fly-blown when 

 such eggs or larvae have been deposited on it. 



Flying-hairs: very long slender surface hairs set in punctures. 



Foetid glands: glandular structures from which a foul smelling liquid may 

 be ejected. 



Foliaceous: leaf -like, or resembling a leaf. 



Policies: leaf -like processes from a margin or protuberance. 



Follicle: = cocoon, q. v. : a cellular sac or tube, as of a gland or ovary. 



Folliculate: enclosed in a case, cocoon or follicle. 



Food reservoir: Lepidoptera; a blind sac or diverticulum from the hind part 

 of oesophagus lying in abdomen dorsal to the stomach. 



Foot: the tarsus, q. v. ; improperly used to = leg; but in the plural form 

 refers to legs rather than tarsi : see feet. 



Foot-shield: in caterpillars, the chitinous plate on outer side of abdominal 

 feet. 



Foot-stalk: of the maxilla, is the stipes. 



Foramen: an opening in the body wall for the passage of a vessel or nerve: 

 any opening at an apex : the opening of a cocoon. 



Foramen magnum: the opening on the posterior surface of the head to give 

 passage to those structures that extend from head to thorax : = occipital 

 foramen. 



Foramina: small openings in the body wall: in Orthoptera; the auditory 

 organs on the anterior tibiae. 



Forceps: hook or pincer-like processes terminating the abdomen, like special- 

 ized appendages of ear-wigs : similar processes in the male, used as clasp- 

 ing organs in copulation. 



Forcipate: bearing forceps or similar structures. 



Forcipiform: having the form of forceps or pincers. 



Fore: anterior. 



Foregut: extends from the mouth to the end of gizzard; its epithelium 

 being formed from the ectodermal invagination known as the stomodaeum. 



