4.-H CLUB INSECT MANUAL 



45 



Figure 108. 

 Termite. 



Figure 110. — 

 Sucking louse. 



Figure 111. — Bit- 

 ing louse. 



EPHEMERIDA.— Ephemeron (a short-lived in- 

 sect). Four netted, veined wings folded vertically 

 over back when at rest; hind pair much smaller 

 than front pair. Mouth parts for chewing. Anten- 

 nae short. Three long tails on tip of abdomen. Life 

 changes incomplete. Body rather frail; molt once 

 in adult stage. Very short lived. Nymphs living in 

 the water. Mayflies, lake flies, or shad flies. 



ISOPTERA. — Isos (equal), pteron (a wing). Most forms 

 wingless ; kings and queens having four wings at mating time ; 

 wings equal in size, long, narrow, and folded over back when 

 at rest. Somewhat resembling ants, but pale in color and having 

 no slender waist in abdomen. Termites (white ants). 



SIPHONAPTERA — Siphon (a tube), apteros (without 

 wings). Small, wingless body, laterally compressed (flat- 

 tened at sides). Hind legs long, stout, fitted for jumping. 

 Mouth parts piercing and sucking. Life changes complete. 

 Fleas. 



ANOPLURA.— Anoplos (unarmed), oura (tail). Small, wing- 

 less, flattened parasites of mammals. Mouth parts for piercing 

 and sucking. Head narrow and pointed in front. Eyes wanting 

 or degenerate. Life changes slight. Blood-sucking lice. 



MALLOPHAGA— Mallos (wool), phagein (to eat). 

 Small, wingless, flattened insects. Large broad heads, 

 rounded in front ; eyes degenerate ; mouth parts for chew- 

 ing. Life changes incomplete. Mostly parasites of birds, 

 some of mammals. Chewing lice or bird lice. 



THYSANOPTERA.— Thysanos (fringe), pteron (a wing). 

 Mostly wingless; when wings are present, four long and 

 narrow, fringed with hairs, folded over back when at rest. 

 Body much elongated. Mouth parts for rasping. Life changes 

 incomplete. Thrips. 



Figure 112. — Thrip. 



