ORTHOPTERA OF NOVA SCOTIA. — PIERS. 209 



Interspace. — Space between certain borders or adjoining spaces. 



Ivnee. — Joint between femur and tibia. 



Labium. — Lower lip. 



Labrum. — Upper lip. 



Lateral lobes of pronotum. — Bent-down portions covering sides of 

 prothora.x. 



Macropterous. — Having long wings. (Opposed to Brachypterous in 

 dimorpliic fom.s). 



Maxillary palpus (-i, pi.). — Moveable jointed organ attached to the 

 ma.xilla, near mouth. 



Mesonotum. — Upper surface of mesothorax. 



Mesosternum. — Under surface of mesothorax. 



Mesothorax. — Middle section of thorax, bearing wing-covers and middle 

 pair of legs. 



Metanotum. — Upper surface of metathorax. 



Metasternum. — Under surface of metathorax. 



Metathorax. — Hind section of thorax, bearing hind wings and hind legs. 



Metazona. — Hind dorsal part of pronotum. 



Nerves. — Large longitudinal ribs or veins of wing-cover and wings. 

 The smaller connecting veins are nervules or veinlets. 



Nymph. — Immature insect, active and feeding in larval and pupal stages, 

 as in the Orthoptera. This constitutes what is known as Incomplete 

 Metamorphosis. (Older nymphs may be distinguished from adiilts, 

 or images as they are called, by having the wings small and appar- 

 ently attached in an upside-down position, and by having the rudi- 

 mentary hind wings outside of the fore wings, instead of beneath 

 them as in the adult state). 



Occiput. — Hinder part of head. 



Ocellus (-i, pi.). — Simple eye, of which there are usually three, as dis- 

 tinguished from the large compound eye. 

 Ovipositor. — Female organ at end of abdomen, for depositing eggs. 



Palpus (-i, pi.). — Moveable jointed organ attached to maxilla or labrum, 

 near mouth; the former called maxillary palpus, the latter labial 

 palpus. They are in pairs. 



Pleuron (-ra, pi.) or Pleurite. — Side piece of mesothorax or metathorax, 

 called respectively "mesopleuron" and "metapleuron," eaoh of 

 which is su.jdivided into an ''epistemum" (anterior part) and an 

 ''epimerum' (posterior part). 



Pronotum. — Shield covering front part of thorax. 



Prosternal spine. — Spine projecting from prostemum, between first pair 



of legs. 

 Prostemum. — Lower surface of prothorax. 

 Prothorax. — Front segment of thorax, bearing first pair of legs. 

 Prozona. — Front dorsal part of pronotum. 

 Pulvillus (-i, pi.). — Pad between claws of tarsus or foot. 

 Rugose. — Wrinkled or rough. 

 Segment. — Ringlike division. 

 Sinus. — Scooped-out marginal form. 



