Flabellate: with long flat processes folding like a fan. Flabelliform: fan-shaped. Flabellum: a fan: a leafed structure: the transparent lobe at the end of the glossa in bees: also used as = flagellum; q.v. Flabs: the lobes at the tip of the dipterous mouth:= labella; q.v. Flaccid: feeble: limber: lax. Flagelliform: whip-like; applied to a process. Flagellum: that part of the antenna beyond the pedicel: a whip or whip-like process: the tail-like process of a spermatozooen. Flammate -eus: flaming or fiery red [vermilion intensified]. Flange: a projecting rim or edge. Flank: the sides of the thorax: the pleura. Flaring: widening out like the mouth of a trumpet. Flavescent: somewhat yellow. Flavid: yellowed: sulphur yellow. Flavo-testaceous: light yellow-brown: almost luteous. Flavous -us: sulphur yellow [gamboge]. Flavo-vixens: 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 certain 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. Folioles: 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 bind 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.