50 EXPLANATION OF TERMS 



Fecundation: the making fertile; as an egg by a spermatozoon. 



Feeler: commonly applied to antennae; q. v. 



Feelers: tactile organs: the term is usually applied to the antennae but some- 

 times to the palpi, as mouth- feelers. 



Feet: the legs or organs of locomotion; one pair attached to each thoracic 

 segment ; composed of coxa, trochanter, femur, tibia and tarsus only ; 

 plural of foot ; q. v. 



Female: designated by " ?," the astronomical sign for Venus: that sex in 

 which the ova are developed. 



Femina: the female, or belonging to that sex. 



Femorate-us: with abnormal or unusually developed femora or thighs. 



Femoro-tibial: pertaining to both femur and tibia or to the articulation be- 

 tween them. 



Femur -ora: the thigh: usually the stoutest segment of the leg, articulated 

 to the body through trochanter and coxa and bearing the tibia at its distal 

 end : in Coccidce and quite commonly, the femur and trochanter are con- 

 sidered as one, for measuring purposes. 



Fenestra: a window; a transparent glassy spot or mark; a pellucid mark in 

 a vein : a small, pale, membranous area at the base of the antennae in 

 roaches. 



Fenestrate: with transparent or window-like naked spots as in the wings of 

 some Lepidoptera. 



Fenestrate membrane: of the compound eye is at the base of the ommatidia, 

 at their junction with the optic nerve : see retina. 



Ferreous -eus: the metallic gray of polished iron. 



Ferrugineous-ous, -eus, -osus: rusty red-brown [Dragon's blood, but 

 brighter]. 



Ferrugino-testaceous: a rusty yellow-brown; a mixture of rusty red with 

 dull yellow-brown. 



Fertilization: takes place when a spermatozoon enters through the micro- 

 pyle of an ovum and unites with the cell nucleus : loosely applied like 

 copulation or to its completion. 



Festivus: variegated with bright colors. 



Festooned: arranged in loops as if hung from nails. 



Fibre: a thread-like structure of any tissue. 



Fibrilla: rod or sliver-like nerve elements, often grouped like a bundle of 

 short threads. 



Fibrin: a proteid compound making up a large part of the muscular tissue; 

 also found in blood and other body liquids. 



Fibrinogen: a proteid substance of the blood and other body fluids, con- 

 cerned in the production of fibrin. 



Fibroin: a chemical compound found in silk, cobwebs and the like. 



Fifth longitudinal vein: Diptcra (Will.) ; = media 3 (Comst.). 



Filament: a thread: a long slender process of equal diameter throughout: 

 an elongated appendage. 



Filariasis: a disease caused by the presence of minute worms or Filaria, 

 transmitted by mosquitoes. 



Filate: Diptera; antennae that are simple, without lateral hair or dilation: 

 thread-like. 



