Contents xi 



PAGE 



198. Water-creepers (Naucoridae), 199. Giant water-bugs (Belostomatidae), 



199. Water-scorpions (Nepidae), 201. Toad-bugs (Galgulidae), 202. Shore- 

 bugs (Saldidas), 202. Assassin-bugs (Reduviidae), 203. Thread-legged bugs 

 (Emesidae), 204. Damsel-bugs (Nabidae), 204. Bedbugs (Acanthiidae), 205. 

 Key to families of plant-feeding Heteroptera, 207. Lace-bugs (Tingitidae), 207. 

 Flat-bugs (Aradidae), 208. Flower-bugs (Capsidae), 209. Red-bugs (Pyrrho- 

 coridae), 210. Chinch-bugs and others (Lygaeidae), 211. Squash-bugs and 

 others (Coreidae), 213. Stilt-bugs (Berytidae), 214. Shield-bodied bugs (Pen- 

 tatomidae), 214. Lice (Pediculidae), 216. Thrips (Thysanoptera), 219. 



CHAPTER XI 



THE NERVE- WINGED INSECTS (ORDER NEUROPTERA), SCORPION-FLIES (ORDER 



MECOPTERA), AND CADDIS-FLIES (ORDER TRICHOPTERA) 223 



Key to the families of Neuroptera, 224. Key to the genera of Sialidae, 224. 

 Lace-winged flies (Chrysopidae), 228. Aphis-lions (Hemerobiidae), 229. Ant- 

 lions (Myrmeleonidae), 230. Key to subfamilies, 231. Key to genera of Myr- 

 meleoninae, 232. Key to Ascalaphinae, 233. Snake-flies (Raphidiidae), 233. 

 Mantispidae, 234. Coniopterygidae, 235. Scorpion-flies and others (Mecoptera), 

 235. Key to genera, 236. Caddis-flies (Trichoptera), 239. Cases of caddis- 

 flies, 240. Life-history, 241. Key to families (adults), 244. Key to families 

 (larvae), 244. 



CHAPTER XII 



THE BEETLES (ORDER COLEOPTERA) 246 



External structure, 247. Internal structure, 248. Character of antennae and 

 legs, 250. Key to sections and tribes, 251. Key to families of Adephaga, 252. 

 Tiger-beetles (Cicindelidae), 252. Predaceous ground-beetles (Carabidae), 253. 

 Diving beetles (Dyticidae), 255. Whirligig beetles (Gyrinidae), 257. Key to 

 families of Clavicornia, 258. Water-scavenger beetles (Hydrophilidae), 258. 

 Rove-beetles (Staphylinidas), 260. Carrion-beetles (Silphidae), 261. Grain- 

 beetles and others (Cucujidae), 262. Larder-beetles and others (Dermestidas), 

 263. Water-pennies (Parnidze), 264. Beaver-beetles (Platypsyllidae), 265. Key 

 to families of Serricornia, 265. Metallic wood-borers (Buprestidae), 265. Click- 

 beetles (Elateridae), 267. Fire-flies (Lampyridae), 269. Checker-beetles (Cleridas), 

 270. Drug-store beetles and others (Ptinidae), 271. Key to families of Lamellicor- 

 nia, 272. Stag-beetles (Lucanidae), 272. Leaf-chafers and others (Scarabaei- 

 dae), 273. Key to families of Tetramera, 277. Leaf-eating beetles (Chrysbme- 

 lidae), 277. Pea- and bean-weevils (Bruchidae), 281. Long-horn boring beetles 

 (Cerambycidae), 282. Lady-bird beetles (Coccinellidae), 286. Key to families 

 of Heteromera, 288. Darkling ground-beetles (Tenebrionidae), 288. Blister- 

 and oil-beetles (Meloidae), 289. Wasp-beetles (Stylopidae), 293. Key to fami- 

 lies of Rhynchophora, 294. Scarred snout-beetles (Otiorhynchidae), 295. Cur- 

 culios and weevils (Curculionidae), 295. Rice- and grain-weevils (Calandridae), 

 297. Engraver beetles (Scolytidag), 298. 



CHAPTER XIII 



TWO-WINGED FLIES (ORDER DIPTERA) 301 



Characteristics of the Diptera, 301. Table to suborders and sections, 303. 

 Key to families of Nematocera, 304. Mosquitoes (Culicidae), 305. Mosquitoes 



