GLOSSARY. 



347 



teeth). (Derivation obscure.) 

 The dragon-flies. 



(E-SOPH'A-GUS (Gr. oisos, a reed; 

 phagein, to eat). The gullet. 



O-LI-VA'CE-OUS. Olive-colored; 

 rich dark green. 



ON-TOG'E-NY (Gr. on, ontos, be- 

 ing; gene, birth). The devel- 

 opment of the individual, as 

 distinguished from that of the 

 species. 



O-NYCH'I-A (Gr. onux, nail, claw). 

 A small, more or less retrac- 

 tile bristle in the feet of 

 beetles; the empodiuni of flies; 

 pseudonychium. 



O-PER'CU-LUM. In flies (Musca) 

 equivalent to the labrum- 

 epipharyux, the latter being 

 composed of the labrum above 

 and epipharynx below. (Dim- 

 mock.) 



O'RAL. Related to the mouth. 



OR'BIT. The ring surrounding 

 the eye. 



OR-THOP'TE-RA. (Gr. orthos, 

 straight; pteron, wing). The 

 order of insects with straight 

 narrow fore wings, as the 

 grasshoppers. 



OS-MA- TE'RI-A (Gr. osmeios, that 

 can be smelt). The V-shaped 

 retractile scent-organs of the 

 larval Papilio. 



OS'TI-A. The slit-like openings 

 of the heart. 



O-VA-RI-OLE'. An ovarian tube. 

 (Huxley.) 



O-VIP'A-ROUS (Lat. ovum, an egg; 

 pario, I bring forth). Applied 

 to animals bringing forth eggs 

 instead of living, active young. 



O-VI-PO-SI'TTON. The act of egg- 

 laying. 



O-VI-POS'I-TOR (Lat. ovum, an 

 egg; pono, I place). An organ 

 in insects homologous with the 

 sting, by which eggs are de- 

 posited in solid substances. 



O'VI-SAC. A sac or bag-like mem- 

 brane attached to the parent, 

 and containing eggs. 



O-VO-VI-VIP'A-ROUS (Lat. ovum, 

 an egg; vivus, alive; pario, I 

 bring forth). Applied to such 

 animals as retain their eggs 

 in the body until they are 

 hatched. 



P^E-DO-GE'NE-SIS. Parthenoge- 

 nous development in larval in- 

 sects. 



PAL-PA'RI-UM. In Carabidoe, 

 etc., the palpal support; the 

 membrane to which the labial 

 palpi are attached, and which 

 admits of an amount of exten- 

 sion of these organs not per- 

 missible when they are fixed. 

 (Horn.) 



PA-PIL'LA. A minute soft pro- 

 jection. 



PARA-GLOSS-^;. Appendages on 

 each side of the ligula. 



PA-RA-PLEU'R/E. The sternal 

 side pieces in beetles. 



PAR-AP'SI-DES (Gr. para, near; 

 pteron, wing). Lateral pieces 

 of the meso- and metathorax 

 on each side of the scutellum. 



PAR-O-NYCH'I-A (Gr. para, near; 

 onux, claw, nail). One or more 

 bristle-like appendages of the 

 onychium or pseudonychium. 



PAR-THE-NO-GEN'E-SIS (Gr. par- 



