GLOSSARY. 



Xlll 



Face . . . The area between the antennae and clypeus, laterally 



bounded by the eyes. 

 Fades . . . General aspect ; superficial appearance. 

 Fascia ... A dark or coloured band. 



Femur . . . The third section and fourth joint of the leg ; the thigh. 

 Fenestra . . A pellucid or interstitial point or space in a wing-nervure. 

 Ferrugineous . Rust-red ; between red and castaneous. 

 Filiform . . Thread-like ; of equal thickness throughout. 

 Flagellum . . That part of the antennae beyond the scape, i.e., joints 



3 to apex ; the funiculus. 

 Flavidous . . Rather lighter or darker than flavous. 

 Flavous . . Somewhat pale yellow ; between white and fulvous. 

 Fovea ... A circular depression, usually of some size. 

 Foveola . . A small fovea, often distributed in series. 

 Frons . . . Forehead ; the region of the head between the vertex and 



the face. 

 Fulvous . . Tawny-yellow, darker than flavous. 

 Fusiform . . Spindle-shaped ; thickest centrally, narrowed towards 



both extremities. 

 Fuscous . . Dark-brown ; between fulvous and piceous. 

 Gastrocaeli . The usually transverse foveae on either side, near the base 



of the second segment. 

 Genal . . . Pertaining to the cheeks. 

 Geniculate . . Elbowed. 

 Gibbous . . Humped, strongly convexed. 

 Glabrous . . Smooth and shining, with usually neither sculpture nor 



hairs. 

 Glaucous . . Greenish-white colouring. 

 Granulate . Covered with small, round elevations. 

 Head . . . The first and front section of the body, bearing the eyes, 



cribrary organs and antennae (for details cf. post). 

 Hirsute . . Covered with long hairs. 



Humeral . . Pertaining to the shoulder, near the base of the wing. 

 Hypopygium . The apical ventral segment of the abdomen. 

 Impunctate . Without punctures. 

 Incisure . . The depressed line of junction between the abdominal 



segments. 

 Incrassate . . Thickened. 

 Infuscate . . Clouded with fuscous colouring. 

 Insertion . . Point of attachment of a movable part. 

 Joints . . . The articulations of the antennae and legs ; not used of 



abdomen. 

 Juxta- . . . (In composition) Near. 

 labrum . . A chitinous plate lying between the bases of the mandibles, 



immediately before the clypeus. 

 Lanceolate . Narrowly elliptical. 

 Lateral . . Pertaining to the sides. 

 Linear . . . Narrow and equilateral. 

 Lunate . . . Crescent-shaped. 

 Lunula . . The crescent-shaped pale spot often present at the vertical 



orbits ; the small circular glabrous area on the sides of 



the abdominal segments. 



