INDEX 



RETINACULUM: tooth-like 

 process of the mandible. 



Fig. 624 



Figure 624 



Retinodiplosis inops 190 

 RETRACTED: drawn back or 



into another part. 

 Rhachicerinae 207 

 Rhagionidae 196, 197, 207 

 Rhagoletis cingulata 44 

 Rhagoletis pomonella 200 

 Rhegmoclema atrata 192, 



206 

 Rhinosimus ruficoliis 114 

 Rhipiceridae 93, 96 

 Rhipiphoridae 86 

 Rhipiphorus solidaginis 85, 



86 

 Rhizophagidae 103 

 Rhizophagus grandis 103 

 Rhodites bicolor 21 

 Rhyacophilidae 147 

 Rhymbus ulkei 108 

 Rhynchites aeneus 127 

 Rhynchites bicolor 127 

 Rhynchitinae 127 

 Rhysodidae 75 

 Rice butterfly 167 

 Robber flies 199 

 Rose chafer 88 

 Rosy apple aphid 7 

 Round-headed apple tree 



borer 44 

 f^ound-headed borers 101 

 Rove beetles 81 



Sabatinca 149 ,^ ., .-^ 



Sabine stimulea 14, 46, 150 



Saddlebacked slug caterpil- 

 lar 14, 46, 150 



Saddle-case makers 147 



Sagra femorata 122 



Sagrinae 122 « , o-. 



Samia cecropia 170, 187 



Sandalus niger 96 



Sand flies 193, 194 



Saperda Candida 44, 101 



SAPROPHAGUS: feeding, on 

 dead or decaying animal 

 and plant materials. 



SAPROZOIC: feeding on de- 

 caying animal matter. 



Saturniidae 170, 187 



Satyridae 167, 172 



Sawfly 16 



Saw-toothed grain beetle 12 



Scale insects 138 



Scalidia linearis 100, 106 



SCANSORIAL: fitted for 

 climbing on hairs. 



SCAPE: the first or basal 

 segment of the antenna. 



Scaphidiidae 82 



Scaphisoma convexum 82 



Scorobaeidae 88, 89 



SCARABAEIFORM: a type 

 of larva with U-shaped, 

 cylindrical body and with- 



out prolegs. 



Scatopsidae 192, 206 

 SCAVENGER: a feeder on 

 decaying or waste matter. 



Scenopinidae 198 



Scenopinus fenestralis 198 



Schoenobiinae 154 



Schreckensteinia 162 



Schymaenidae 84 



SCLERITE: any piece of the 

 insect body wall bounded 

 by sutures. 



SCLEROTIZATION: the hard- 

 ening of the body wall 

 by the deposit of chitin- 

 ous substances in the exo- 

 cuticula. 



Scobicia declivis 120 



Scolytidae 126 



Scolytus rugulosus 126 



Scraptia sericea 110 



Scraptini 110 



Scythris 183 



Scythris eboracensis 182 



SECONDARY HAIRS: scat- 

 tered hairs which have no 

 constant position. 



Selandriinae 213 



SEMIAQUAIIC: closely re- 

 lated to water or partial- 

 ly aquatic. 



SENSORIA: the circular open- 

 ings covered by a mem- 

 brane, on the antennae 

 or legs. 



Separator 24 



Serpentine miners 152 



SETA (pi., setae): slender 

 hair-like appendages, 

 hollow in structure. 



SETAL: of or pertaining to 

 setae. 



SETI FERGUS: bearing setae. 



Seventeen-year cicada 1 36 



Sexton beetles 82 



Sheep bot fly 200 



Sheep louse 7 



Shield bugs 133 



Shining flower beetles 106 



Shot-hole borer 126 



Sialidae 141 



Sialis infumata 48, 141 



Sifter 23 



Silpha 82 



Silphidae 80, 82 



Silvanini 104 



Silverfish 30, 56 



SIMPLE METAMORPHOSIS: 

 same as gradual meta- 

 morphosis. 



Simuliidae 192, 203 



Simulium pecuarum 14 



Simulium pictipes 192 



Simulium venustum 53, 192, 

 203 



Sinodendron cylindricum 87 



SINUOUS: curving in and 

 out. 



Siphlonuridae 66 



Siphlonurus alternatus 66 



Siphonaptera 45, 50 



Siricidae 216 



Sisyra umbrata 142 



Sisyridae 48, 142 



Sitophilus granarius 127 



Sitotroga cerealella 151, 183 



Skippers 171 



Slickers 30 



Slug-caterpillars 150 



Smicripinae 107 



Smicrips palmicola 107 



Sminthuridae 59 

 Sminthurides lepus 59 



Smoky aiderfly 141 



Snakeflies 140 



Snipe flies 196 



Snowflea 58 



Snowy tree cricket 7, 71 



Soft winged flower beetles 

 99 



Soldier beetles 97 



Soldier flies 195 



Spanworms 1 65, 1 66 



Sparnopolius fuivus 42, 199 



SPATULATE: broad and 

 rounded at tb; tip, more 

 slender at the base; spoon- 

 shaped. 



Spercheinae 118 



Spercheus 1 1 7 



Spercheus emarginatus 118 



Sphaeridiinae 117 



Sphindidae 107 



Sphindus americanus 107 



Sohingidae 170, 171, 188 



Sphinx caterpillar 170 



Sphinx moth 170 



SPINE: a large setae arising 

 from a calyx or a cup by 

 which it is articulated to 

 the cuticula. 



SPINNERET: the opening of 

 silk glands. 



SPINULOSE: set with small 

 spines. 



SPIRACULAR FURROW: a 

 furrow situated on the 

 cephalic margin of the 

 movable abdominal seg- 

 ments of lepidopterous 

 pupae and cephalad of 

 the spiracle. It is fre- 

 quently extended almost 

 to the meson on both the 

 dorsal and ventral aspects. 



SPIRACLE: the opening of 

 the respiratory organ. 



Spittle-bugs 137 



Spogostylum albofasciatum 

 209 



Spongilia-flies 142 



Spring rose gall 21 



Springtail 58 



Spruce budworm 162 



Spruce leaf-miner 183 



SPUR: a spine-like appen- 

 dage of cuticula, connect- 

 ed to the body wall by a 

 joint; generally on the 

 tibia. 



Squash bug 134 



Squash-vine borer 1 56 



STADIUM: similar to stage. 



Stag beetles 87 



STAGE: the interval between 

 moults. 



Staphylinidae 51, 81, 83 



Stegobium paniceum 119 



Steninae 83 



Stenopelmatinae 71 



Stenopelmatus longispina 71 



Stenophylax 16, 148 



Stunus 83 



STERNUM: the underside of 

 the thorax, between the 

 coxal cavities. 



Sthenopis thule 178 



Stictocephala 39, 137 



232 



