GLOSSARY 



Aberrant. In botany and zoology, differing in some of its characters from the group 



in which it is placed. ■ 

 Acari. Arthropods of the order Acarina; mites and ticks. 

 Acaricide. A medicinal agent used to destroy acari. 

 Agamous. In zoology, having no distinguishable sexual organs. 

 Amorphous. Without definite form; shapeless. 

 Ambulatory. Formed or adapted for walking. 

 Ametabolic. Pertaining to insects and other animals which do not imdergo a 



metamorphosis. 

 Anorexia. Loss or absence of appetite. 



Antenna. A segmented process on the head of insects, myriapods, and crustaceans. 

 Anthelmintic. A medicinal agent used to destroy or expel worms from the intestinal 



tract. 

 Apodal. Without feet. 

 Apterous. Without wings. 

 Aquatic. Growing in or frequenting water. 

 Arboreal. Attached to or frequenting trees. 

 Arista. A tactile filament at the end of the antenna of an insect. 

 Article. A segment or part of the body connected by a joint with another segment 



or part. 

 Asexual. Having no sex. 



Basis capituli. Basal portion of the capitulmn or head of a tick. 

 Biiid. Cleft or divided into two parts. 

 Bisexual. Having the organs of both sexes in one individual. 

 Buccal. Pertaining to the cheeks or mouth cavity. 

 Budding. A method of reproduction by which a protuberance from the parent 



organism develops into a new organism. 

 Bursa. A sac or sac-like cavity. 

 Capitulum. The head of a tick. 



Caryozoic. Pertaining to parasites which live in the cell nucleus. 

 Catalepsy. Suspension of sensibility and voluntary motion. 

 Caudal. Pertaining to the tail. 

 Cephalic. Pertaining to the head. 

 Cephalothorax. The fused head and thorax of arachnids. 



Chelae. Pincer-like terminations of certain of the limbs of crustaceans and arachnids. 

 Chelate. Terminated by chelae. 

 Chitin. The homy substance forming the harder part of the integument of insects 



and other arthropods. 

 Cilia. Hair-like processes, as of a cell, capable of vibratory movement. 

 Ccelom. The body-cavity, as distinguished from the intestinal cavity; the periaxial, 



perivisceral, or perienteric space. 

 Coelozoic. Pertaining to parasites which live in the ccelomic cavities of the body. 



