134 AMERICAN ENTOMOLOGY. 



Dorsal, of the back. 



Dorsum, the posterior portion of the stethidium on the superior 

 surface of the body, directly above the postpectus, and bounded 

 behind by the tergum ; in the Coleoptera it is covered by the 

 basal portion of the elytra. 



Duplicate, doubled. 



E. 



Ecalcarate, without a spur or horn. 



Echinate, set with prickles. 



Edentulous, destitute of teeth. 



Edge, of a surface, is that line which includes the margin, and 

 forms the extreme boundary ; the elytra of many Coleoptera 

 have a deflected margin beneath the edge called epipleura. 



EJlected, bent outwards somewhat angularly. 



Egg, the first state of the insect. 



Elliptical, elongate-oval ; differs from oval by having^the_ lines 

 nearly parallel in the middle. 



Elytra, coriaceous, opake, more or less solid lamellae, separated 

 in repose by a rectilinear suture, substituted for the anterior 

 wings and covering the dorsum and tergum in repose ; in- 

 cluding hase, tip, humerus, and epipleura. See hemelytra. 



Emarginate, notched; terminating in an acute notch at tip. 

 See sinuate. 



Ensiform, sword-shaped ; two-edged, large at base, and tapering 

 towards the point. See ancipital. 



Entire, (wings) with a simple margin ; not indented on the edge, 



Epupillate, an pcellate spot included by a colored ring, but desti- 

 tute of a pupil or central dot. 



Epipleura, the defiexed or inflexed margin of the elytra, imme- 

 diately beneath the edge. 



Equal, superfices without inequalities, not canaliculated, striated, 

 punctured, &c. ; this term differs from plane, in not requiring 

 the part to be level or in a rectilinear direction, but occurs in 

 round bodies ; also applied to bodies of the same length. 



Equitant, folded one upon the other; laminated. 



Erect, upright ; nearly but not absolutely perpendicular to the 

 horizon. See vertical. 



Eroded, gnawed ; as if worm-eaten ; (edge) with irregular teeth 

 and emargi nations. 



