6 EXPLANATION OF TERMS 



medium size, between teleodont and priodont ; = mesodont. 



Amphipneustic: applied to larvae which have the spiracles confined to the 

 anterior and terminal segments. 



Ample: broad; large; sufficient in size. 



Amplected: when the head is received into a concavity of the prothorax; 

 e. g. Hister. 



Ampliate -us: moderately dilated. 



Amplificatus: dilated; enlarged. 



Ampulla: Orthoptera; an extensile sac between head and prothorax used by 

 the young in escaping from ootheca, and later, in molting: Heteroptera; 

 a blister-like enlargement at the middle of the anterior margin of the pro- 

 thorax. 



Ampulla-like: flask-shaped; applied to a vascular sac at base of antenna 

 which aids in the blood circulation of head and its appendages. 



Amygdaliform: almond-shaped. 



Anabolic: the constructive change from food material to animal tissue: see 

 katabolic. 



Anal: pertaining or attached to the last segment of the abdomen; the point 

 or angle of any wing or other appendage that is near to or at any time 

 reaches the tip of the abdomen. 



Anal angle: on the secondaries is that angle nearest the end of the abdomen 

 when the wings are expanded : the angle between the inner and outer mar- 

 gin of any wing ; = hind angle of primaries. 



Anal appendages: generally applied to the external genital parts. 



Anal area: Orthoptera and Neuroptera; the hinder or anal portion of a 

 wing within the anal vein = axillary area. 



Anal cells: the spaces between the anal veins (Comst.) : in Dipt era, anal 

 cell (Will.), the space nearest the body, inclosed by the 5th and 6th veins; 

 sometimes called the third basal cell (Coq.) = 1st anal (Comst.). 



Anal field: Orthoptera; that area on the tegmina corresponding to the anal 

 area of the secondaries. 



Anal filaments: see caudal setae. 



Anal fork: applied to the cerci of Coleopterous larvae. 



Anal foot: applied to the tip of the body in larval Chiron omids, which is 

 modified to serve as a hold-fast. 



Anal furrow: in wings, lies between the cubitus and 1st anal vein. 



Anal glands: appendages of the alimentary canal, opening into it near the 

 posterior extremity, secreting either a lubricant, a silk-gum, or some other 

 specialized material. 



Anal horns: in Colletnbola, are small processes borne on the last abdominal 

 segment. 



Anal lobes: in Lcccmi'mce, a pair of small, triangular, hinged processes form- 

 ing a valve which covers the anal orifice. 



Anal loop: Odonata; the loop formed by the angulations of 1st anal vein. 



Analogous: similar in function; but differing in origin and structure: e. g., 

 the wings of birds and insects : see homologous. 



Anal operculum: the dorsal arch of the 10th abdominal segment; in cater- 

 pillars = supra-anal plate, q. v. 



