

AMERICAN ENTOMOLOGY. 107 



Fornicate, arched or vaulted. 



Fossula, a sinus ; a small hollow ; foveola and scrobicidus ha\ e 



nearly the same meaning. 

 Foveolate, covered superficially with cavities like a honeycomb 

 Fragile, brittle, easily broken. 

 Front, anterior portion of the head, included by the eyes, vertex . 



and nasus, and supporting the antennae. ; (Diptera) that portion 



of the head which is above the antennae and between the eyes, 



its superior portion is called the vertex. 

 Fulcrum, the corneous body on which the base of the tubus, or 



sheath of the tongue, in the Hymenoptera, rests ; it is " le 



pivot" of Reaumer. 

 Fuliginous, sooty ; of the color of soot. 

 Fulvous, orange-yellow. 



Furcated, forked ; terminating in two divisions. 

 Fuscus, dark brown, with a slight mixture of gray. 

 Fusiform, spindle-shaped ; gradually tapering more or less to 



each end. 



a. 



Galea, helmet ; a dilated inarticulate membranaceous piece on 



each maxilla, that, together with the labrum, covers the 



organs of the mouth in the Orthoptera and some of the Neu- 



roptera. 

 Gastric, of or belonging to the belly. 

 Gelatinous, jelly-like ; having the consistence of jelly. 

 Geminate, situated in pairs. 

 Gena, cheek ; a portion of the head on each side immediately 



beneath the eye, often turgid. 

 Geniculate, knee-jointed ; bending abruptly in an obtuse angle. 

 Genus, an assemblage of species which correspond in particular 



characters. 

 Geometrse, larvae which when walking, alternately elevate and 



straighten the middle of the body, as in those of the genus 



Geometra ; opposed to rectigrade. 

 Gibbous, hump-backed ; protuberant. 

 Glabrous, smooth ; opposed to hairy, downy, villous, &c. 

 Glaucous, gray-bluish-green. 



Globular, like a round ball ; all the diameters equal. 

 Glochis, a barbed point. 



