CLASSIFICATION 8l 



complete? Can you think of a plausible reason for calling 

 it a dragon fly? 



Classification. — From A. E. Popenoe. 



Table of Principal Families of Neuroptera. 

 A. Four or two distinct wings. 



B. Antennae inconspicuous, subulate, short and slender. 



C. Fore and hind wings nearly of same length ; tarsi three- 

 jointed Dragon flies, Libellulidae. 



CC. Hind wings either smaller or wanting; tarsi four or five- 

 jointed Day flies, Ephemeridae. 



BB. Antennae usually inconspicuous; setiform, filiform, clavate, 

 capitate, or pectinate. 



D. Tarsi two or three- jointed; wings unequal. 



E. Hind wings smaller Bookmites, Psocidae. 



EE. Hind wings of same size or broader than fore wings. 



Perlidae. 

 DD. Tarsi four-jointed ; wings unequal. 



White ants, Termitidae. 

 DDD. Tarsi five — sometimes apparently but four — jointed. 

 F. Hind wings with no anal space, not folded. 



G. Mouth more or less rostrated Panorpidae. 



GG. Mouth not rostrate Hemerobidae. 



FF. Hind wings with a folded anal space. 



H. Wings reticulate Sialidae. 



HH. Transverse veins rather few Pliryganidae. 



A A. Wings rudimentary or wanting. 



B. Mouth rostrate Panorpidae. 



BB. Mouth not rostrate. 

 C. Tarsi five-jointed. 



CC. Tarsi four-jointed Phryganidae. 



CCC. Tarsi three-jointed Termitidae. 



D. Wings absent; or two, rudimentary, leathery. . . .Psocidae. 

 DD. Four rudimentary wings, veins visible Perlidae. 



Note.— According to recent classifications the order Neuroptera 

 is divided into several groups each of which is an order. The Drag- 



TT T"KT TriCM . 



