ORTHOPTEKA OF INDIANA. 465 



The members of the Alleghanian fauna entered the State, for the 

 most part, from the north or northeast. A number of those which I 

 have not classed as Alleghanian or Austroriparian, and which, there- 

 fore, are toi he considered Carolinian, evidently came in from the 

 west. Chief among these are Ageneotcttix srudderi (Brun.), Mclan- 

 oplvs hiatchleyi Scudd., Conocephnlus palustris BL, Xiplndivm saltans 

 Scudd., Xipliidium sfrichiin Scudd., and OrclicJimuin volant um McIST., 

 all of which appear to be confined to the western half of the State. 



GLOSSAEY OF TEEMS USED IN TEXT. 



Abbreviated. — Shortened — not reaching the tip of abdomen when ap- 

 plied to tegmina and wings. 



Abdomen. — Posterior part of body. 



Aborted. — Imperfectly developed. 



Acuminate. — Becoming gradually narrower; tapering to a point. 



Acutely. — Sharp; sharply pointed. 



Adult. — The imago or winged stage of an insect. 



Anal. — Situated at or near the anus. 



Annulus, annuJation. annulate. — Einged; furnished with ring-like 

 bands. 



Antenna'. — The jointed organs of touch and smell, attached to the 

 upper part of the face. 



Anterior, anteriorli/. — Near the head; situated more to the front. 



Amis. — The posterior opening of the alimentary canal. 



Apex. — Tlie terminal portion of any organ or part of the body. 



Apical, apicalhj. — That part of any organ farthest from the body. 



Appressed. — Pressed closely against; fitting closely to. 



Approximate. — Near to; near together. 



Apterous. — Wingless. 



Arboreal. — Living on or among trees. 



Arcuate. — Arched; bowed. 



Area, areola, areolale. — Wing cells; cellules; the membranaceous 

 spaces between the nervules. 



