92 ECONOMIC ENTOMOLOGY 



XX. INSECTS OF THE HOUSEHOLD 



A. Annoying the Inmates 



(a) Slender two-winged insects; only the females bite or pierce the skin; larvae 

 and pupae live in stagnant water. — Common Mosquito {Ctilex pipiens), p. 243. 



(b) Similar to (a) but larger and with wings spotted. — M alarial M osqiiito {Ano- 

 pheles maculi pennis) , p. 244. 



(c) Two- winged insects, with four black lines on thorax; they lap but do not 

 pierce; eggs laid on manure or decaying organic matter. — House Fly {Musca do- 

 meslica), p. 270. 



{d) Similar to (c) but with six black lines on thorax, and with piercing mouth- 

 parts. — Stable Fly (Stomoxys calcitrans), p. 271. 



(e) Compressed, wingless long-legged insects with piercing and sucking mouth- 

 parts, hiding in bedding and clothing; eggs laid among hairs of cat or dog. — Cat 

 and Dog Flea {Pulex serraticeps), p. 280. 



(/) Reddish-brown, flat bugs with buggy odor, hiding in day time in cracks, but 

 active at night; with piercing and sucking mouth-parts. — Bed-bugs (Cimex Icclu- 

 larius), p. 167. 



B. Feeding on or Destroying Clothing, Carpets, Upholstery, Etc. 



{a) Tiny dusky moths, laying eggs in furs or woolens, the larvae eating holes in 

 them. — Case-making Clothes Moth {Tinea pellionella), p. 236. Webbing Clothes Moth 

 {Tinea biselliella) , p. 237. Tapestry Clothes Moth {Trichophaga tapetzella), p. 237. 



{b) Small oval red, black and white beetles, whose grubs are hairy, feeding on 

 carpets on underside, usually along a crack of the floor. — Buffalo Carpet Beetle 

 {Anthrenus scrophularice), p. 291. 



(c) Tiny active wingless insects with silvery appearance, and with three long 

 feelers at hind end of body, feeding on linen or paper containing starch, sugar, etc. 

 Silver-fish {Lepisma saccharina), p. 95. 



C. Feeding on Food Products 



{a) Active wary light-brown insects with a "roachy" odor, found in pantries 

 and bakeries; several species but the most common is the Croton-bug or German 

 Cockroach {Ectobia germanica), p. 105. 



{b) Brown beetles, one-third inch long, whose grubs are brown above, white below 

 and covered with long brown hairs; found where meats, skins and feathers are 

 kept. — Larder Beetle {Dermestes lardarius), p. 291. 



(c) Large black flies with bluish abdomen and with black spines on thorax; 

 eggs laid on meat. — Blow or Meat Fly {Calliphora vomitoria), p. 273. 



{d) Little red ants that have their nests in the wall or beneath the flooring. — 

 House Ants {Monomorinm pharaonis), p. 361. 



(e) Black ants and pavement ants living outdoors sometimes invade houses. — 

 Black Ants {Monomorium minutiim), p. 361. 



