330 GLOSSARY OF TERMS USED IN ENTOMOLOGY 



Anal appendages. The external genital parts. 



Anal area. In Orthoptera and Neuroptera, the hinder or anal 

 portion of a wing within the anal vein. 



Anal field. That area on the tegmina of Orthoptera corresponding 

 to the anal area of the secondaries. 



Anal plate. In caterpillars, the shield-like covering of the dorsum 

 of the last segment. 



Annulate. Marked with colored rings or bands. 



Annulus. a ring. 



Ante-apical. Before or in front of the apex. 



Antenna. Two-jointed organs of sensation situated on the head. 



Antepectus. The lower surface of the prothorax. 



Antigeny. Sexual diversity. 



Anus. The posterior opening of the digestive tract. 



Apex. The terminal portion of any organ of body, the part farthest 

 away from the base. 



Appendiculate. Bearing appendages. 



Appendix. A part added or attached to another part. 



Apterous. Without wings. 



Aquatic. Living in the water. 



Araneiform. Spider-like in appearance. 



Arboreal. Living in or on trees. 



Arborescent. Branching. 



Arcuate. Bowed or curved. 



Arenose. Sandy, not smooth. 



Areola. A small cell on the wings of certain Hemiptera. 



Arista. A specialized bristle or process on the antenna of certain 

 Diptera. 



Arolium. Cushion-like pads on the tarsi of many insects. 



Arthropoda. Jointed animals having jointed appendages. 



Articulate. Divided into distinct joints. 



Articulation. Joint; place where two joints meet. 



Asexual. Without sex. Reproduction which does not involve the 

 union of individuals of different sexes. Reproduction by budding, etc. 



Ater. Deep black. 



Atomarius. With minute points or dots. 



Bifid. Split, two parts. 



Bifurcate. Divided; forked. 



Bionomics. The habits, breeding, and adaptations of living forms. 



Biserrate. Saw- toothed on two edges. 



BiviTTATE. Having two longitudinal stripes. 



Brachycerous. Having short three-jointed antenna?, Diptera. 



Brachypterous. Short-winged. 



Bristle. A short, stiff hair. 



Buccal. Relating to the mouth cavity. 



Bulla. A blister or blister-like structure. 



CiECUM. A blind sac or tube opening into the alimentary canal. 

 Calypter. In Diptera, the alula when it covers the haltere. 

 Campodeiform. Resembling campodea. 



Canaliculate. Grooved longitudinally, with a concave line in the 

 middle. 



