208 ELEMENTARY LESSONS ON INSECTS 



PAGE 



Crop pests 160 



Cross section 25 



Cultural control 147 



Cyanide bottle 177 



Damselfly 51,52 



Damselfly nymph 23 



Darkling beetles 102 



Dermaptera 132 



Determinations 207 



Dip net 178 



Diptera 115,154 



Discal cell 108 



Dobson 85,86 



Dorsal vessel 19, 24 



Dragonfly 51,31 



Drosophila 119 



Drying box 189 



Earwig 132 



Eggs 29 



Envelopes 180 



Ephemera simulans 61 



Ephemerida 60 



Esophagus 18 



Experiments 161 



Eyes 5 



Facet 5 



Femur 8 



Fire brat 131 



Fireflies 100 



Fleas 131 



Flies 115 



Food poisons 145 



Franklin, Benjamin 60 



PAGE 



Fruit-worm 169 



Fumigants 145, 146 



Ganglia 24 



Gizzard 18 



Grasshoppers 37 



Ground beetles 98 



Head 5 



Heart 17 



Hemiptera 69 



Hessian fly 148 



Hexapods 7 



Homoptera 70 



Honeybee 126 



Honey comb ,128 



House-flies 148 



Household pests 162 



Hydropsyche 77 



Hymenoptera 124, 154 



Ichneumon fly 128 



Injurious insects 151 



Insecticides 145 



Insect pins 187 



Instars 31 



Intestine 19 



Isoptera 132, 141 



Japanese beetle 102 



Labellae 115 



Labels 185 



Labrum 6 



Lace-bug 71 



