Index to Genera. 



141 



Aletia 50 

 Amnicola 72-73 

 Ancylus 80-81 

 Anosia xl, xli, 1 

 Anthrenus 9 



Bifidaria 85-87 

 Blatta 19 

 Blattella 19 

 Bulimulus 100 

 Bulinus 68 

 Bythinella 68, 72 



Campeloma 71-72 

 Carychium 84 

 Chauliognathus 19 

 Chrysopa 20 

 Circinaria 101 

 Cochlicopa 87 

 Coloptenus 50 



Diabrotica 19 

 Diospyros 125-135 



Epicauta 19 

 Euconulus 102 



Galba 83-84 

 Gastrodonta 104 

 Goniobasis 68, 73-76 

 Grapta 19 

 Gryllus 47-48 



Helicina 70-71 

 Helicodiscus 105 

 Hyphantria 56 



INDEX TO GENERA. 



Lymnsea 68 



Mantis 47-49 

 Musculium 69-70 



Omphalina 101 



Pediculodes 23 

 Periplaneta xxxiii 

 Phasmomantis 50, 

 Physa 68, 76-80 

 Pieris 20 

 Pisidium 70 

 Planorbis 68, 81-82 

 Pleurocera 73 

 Podagrion 53-54, 56 

 Polistes 20 

 Polygyra 89-100,106 

 Pompatiopsis 73 

 Pseudosuccinea 82-83 

 Punctum 106 

 Pupoides 85 

 Pyramidula 104-105 



Sphaerium 69 

 Spilosoma 48-49 

 Stagmomantis 1-58 

 Strobilops 85 

 Sturnus xxxi 

 Succinea 87 



Vallonia 84-85 

 Vertigo 87 

 Vitrea 102 

 Vivipara 71 



Zonitoides 103 



53, 



55 



