App 16 



Approximate {anf. approxima'cF). (Antennae) When 

 the basal joints are placed veiy closely together. 

 (L. ad, and superlative of prope, near.) 



Aptera. — An order of insects which undergo prac- 

 tically no metamorphosis, and are destitute of 

 wings ; the mouth is mandibulate or slightly 

 haustellate. (Gr. a, and p'eron, a wing.) 



Apterous. — Wingless. (Gr. a, and pteron.) 



Arachnoidae. — A class of the Articulata, including 

 spiders, mites, and scorpions. (Gr. arachne, a 

 spider, and eidos, form.) 



Arachnoideous. — Cobweb-like ; resembling cobweb. 

 (Gr. arachne, a spider, and from eidos, form.) 



Araneidae. — -The spider family. [See Arachnoidse.] 



Arched nerves. — Two nerves arising from the two 

 upper basal portions of the cura cerebri, con- 

 necting the central, and vagus nervous systems. 

 (L. arcus, a bow, and nerves.) 



Arcuate. — Bow-like ; linear, and bent like a bow. 



(L. arcHs.) 



Arcuatus. — Arched ; a margin in the form of a bow. 

 (L. arcHS.) 



Areolate. — Furnished with small areas, like a net- 

 work. (L. area, a vacant space.) 



Areolet. — A cell, or enclosed space formed by the 

 nervures of a wing. (L. area.) 



Argenteus. — White metallic colour, silver-like. 

 (L. argenteus.) 



Arista. — A slender style or bristle, chiefly confined 

 to the antennae of Diptera. (L. arista, an awn.) 



