278 EXPLANATIONS OF TERMS USED IN TEXT. 



D. 



declivent, steep; precipitous. 



decurved, bowed downwards. 



deffexed, bent downwards. 



depressed, pressed downwards ; more or less flattened verticalh'. 



dentate, furnished with a tooth or teeth. 



denticulations, with tooth-Hke notches. 



dichromatism, the quaHty of possessing two color varieties. 



digitate, finger-like. 



dilated, distended. 



dimorphic, existing in two forms. 



discoidal area (Fig. page 155). ■ 



disk, the middle of a surface; the surface within the margins. 



distal, farthest distant, opposite of proximal. 



diurnal, active during the day. 



dorsal, pertaining to the upper surface. 



dorsum, the upper surface or back of thorax, abdomen, etc. 



E. 



elliptical, elongate-oval. 



elongate, more stretched than usual. 



elytra, the w^ing-covers ; tegmina ; anterior or upper wings (Fig. 33). 



emarginate, emarginaiion, edged; notched; terminating in an acute notch 



at tip, 

 embryo, the living being within the egg (Fig. 5) . 

 ensiform, sword-shaped. 

 epicraniuw, the upper part of the head, from the front to the back (Fig. 



22). 

 epimera, narrow or triangular pieces at the sides of the under surface of 



the thorax (Fig. 31). 

 episterna, large pieces just in front of the epimera (Fig. 31). 

 excavate, having a depression. 

 extruded, thrust out ; expelled. 

 exuded, discharged slowly, through pores, etc. 



facets, the surface of the ocelli of the compound eye. 



fascia, fasciae, transverse bands or broad lines. 



fastigium, the extreme point of the front or apex of the head when it ts 



produced in a conical prominence. 

 fauna, the animals of a locality. 

 femoia, the thighs (Fig. 35). 



fenestrated, with transparent spots like small windows. 

 feriuginous, rustA'-brown ; brownish-red with some yellow. 

 £liiorm, slender, thread-like. 

 fissure, crack ; crevice. 



