Stenophasmus, _Sm._ 169 ruficeps, _Sm._ 170 Stilbum amethystinum, _Fabr._ 177 splendidum, _Fabr._ 177 Stratiomidae, _Haliday_ 78 Stratiomys confertissima, _Walk._ 79 nexura, _Walk._ 80 Sulu australis, _Gould_ 33 Synegia botydaria, _Guenee_ 195 Syntomis annosa, _Walk._ 183 chloroleuca, _Walk._ 183 xanthomela, _Walk._ 184 Sypna subsignata, _Walk._ 191 Syrphidae, _Leach_ 93, 129 Syrphus aegrotus, _Fabr._ 99 ericetorum, _Fabr._ 99 Tabanidae, _Leach_ 83 Tabanus recusans, _Walk._ 83 Tachinides, _Walk._ 97 Tachytes morosus, _Sm._ 18 Tenthredinidae 23, 177 Tenthredo (Allantus) purpurata, _Sm._ 23 Thalatta aurigutta, _Walk._ 189 Thereva congrua, _Walk._ 90 Therevites, _Walk._ 90 Thermesia? recusata, _Walk._ 191 Thermesidae, _Guenee_ 191, 197 Timandra Ajaia, _Walk._ 195 Tipulidae 78 _Trehala_ 178 Tremex insignis, _Sm._ 178 Trigona laeviceps, _Sm._ 135 Trupanea contradicens, _Walk._ 87 Trypeta basalis, _Walk._ 120 dorsigutta, _Walk._ 119 impleta, _Walk._ 120 multistriga, _Walk._ 119 roripennis, _Walk._ 131 subocellifera, _Walk._ 120 Trypoxylon eximium, _Sm._ 161 Vespa affinis, _Fabr._ 23 fervida, _Sm._ 23 Vespidae, _Stephens_ 19, 166 Ugia disjungens, _Walk._ 192 Uraniidae, _Walk._ 183 Urothoe elegans 3 inostratus, _Dana_ 3 Worm-tracks, notice of in London Clay 31 Xarnuta leucotelus, _Walk._ 108 Xema Jamesonii 33 Xylocopa aestuans, _Linn._ 8, 135 collaris, _St. Farg._ 8 Dejeanii, _St. Farg._ 8 fenestrata, _Fabr._ 8 nobilis, _Sm._ 8 Xylota ventralis, _Walk._ 96 Xyphidria rufipes, _Sm._ 177 Zanclopteryx saponaria, _H. Schaeff._ 195, 198 Zerenidae 196 Zethus cyanopterus, _Sauss._ 19 Zygaenidae, _Leach_ 183 THE END Printed by TAYLOR and FRANCIS, Red Lion Court, Fleet Street. Transcriber's Notes: 1. Chrysophila changed to Chrysopila in the index to match the text referred to. 2. Stenophasimis changed to Stenophasmus in the index to match the text refered to. 3. A number of words occur throughout the book in accented and non-accented forms. These were left as in the original text.