GLOSSARY. 



341- 



DE-CID'U-OUS. Relating to parts 

 which fall off or are shed dur- 

 ing life, as the gills of the 

 frog, etc. 



DEN'TATE. Furnishedwith teeth. 



DEN'TI-CLE. A small tooth. 



DE-PRESS'ED. Inclined down- 

 ward, or flattened from above 

 downward. 



DERM'A-TOP-TE-RA (Gr. derma, 

 skin; pteron, wing). The ear- 

 wigs. 



DEU-TOM'A-L^;. The third pair 

 of head appendages of Myrio- 

 poda. 



DI-CHOP'TIC. Separation of the 

 eyes by the front in all females 

 and some males of certain 

 Diptera (Helophilus, etc.). 



DIP-PER-EN-TI-A'TION. The spe- 

 cialization or setting apart of 

 special organs for special work, 

 as the specialization of the 

 hand of man as compared with 

 the fore foot of other mam- 

 mals ; also applied to the 

 special development during 

 embryonic life of parts adapted 

 for peculiar or special func- 

 tions. 



DIG'IT. A finger or toe. 



DI-GO'NEU-TISM. The power of 

 producing two broods in a sea- 

 son. 



DI-LAT'ED. Widened, expanded. 



DI-MID'I-ATE. Half round. 



DI-CE'CI-OUS. (Gr. dis, two ; 

 oikos, house). With distinct 

 sexes. 



DIP'TE-RA (Gr. dis, two; pteron, 

 wing). Two-winged flies ; an 

 order of insects. 



DIS-COI'DAL. Relating to the 

 disk or middle; discal. 



DIS'TAL. Applied to the farther 

 end of a joint. 



DI-VAR'I-CAT-ED. Spreading 

 apart. 



DI-VER-TIC'TJ-LUM. An offshoot 

 from a vessel or from the ali- 

 mentary canal. 



DO-LAB'RI-FORM. Hatchet-shap- 

 ed. 



DOR'SUM. In Diptera, the whole 

 upper surface of the thorax, 

 limited laterally by the dorso- 

 ploural suture:;, posteriorly by 

 the scutellum, and anteriorly 

 by the neck. 



DUCT. A tube cr passage usu- 

 ally leading from glands. 



EC-DY'SIS (Gr. ekdusis, casting 

 off). The process of casting the 

 skin; moulting. 



E-DENT'U-LOUS. Destituteof teeth. 



EGG'-BTJRST ER. A projecting 

 ridge or point on the head or 

 other parts of certain embryos 

 used ill breaking open the egg- 

 shell, in hutching. 



E-LA'TER. The spring or forked 

 "tail "of Poduraus. 



E-LY'TRA (Gr. elutron, a sheath). 

 The fore wings of beetles, 

 serving to cover or sheathe the 

 hind wings. 



E-MAR'GI-NATE. With an ob- 

 tuse incision. 



EM-BO'LI-UM. The lobes on each 

 side of the prothorax in He- 

 miptera (Fieber). 



EM'BRY-O. The germ or young 

 animal before leaving the egg 

 or body of the parent. 



