71 Epi 



Epididymis. — The convoluted mass of tubes com- 

 prising some twenty folded bundles formed by 

 the vas deferens. (Dufour.) (Gr. efi, upon, 

 and didumos, a testicle.) 



Epigastrium. — Ihe first entire ventral segment. 

 It includes the Mucro, and Tympana. {Gr. 

 epi, on, and gasier, the belly.) 



Epimera (sing, epimerum). — The " flanks," the 

 point of union of the legs to the lower arcs of the 

 segment formed by the pleurites. (Gr, epi, and 

 meros, the thigh.) 



Epiopticon. — The second swelling of the optic 

 tract. (Gr. epi, and optikos, pertaining to 

 sight.) 



Epipharynx — A small valve situated under the 

 Labrum, that in many Hymenoptera closes the 

 Pharynx, and is an appendage of its upper 

 margin. Synonymous with lingua. (Gr. epi, 

 and pharnyx.) 



Epipleura. — The deflexed margin of the elytra 

 immediately beneath the edge, (Gr. epi, and 

 pleura.) 



Episternum. — The plate situated between the 

 epimerum and sternum. (Gr. epi, and sternum, 

 the breast.) 



Epistoma.- — That part of the face between the 

 front and labrum, equivalent to the anticlypeus. 

 (Gr. epi, and stoma, a mouth.) 



Epistomis. — Latreille's term for the clypeus. (Gr. 

 epi, and stoma.) 



