THE ILLINOIAN ICE INVASION 



331 



a large lake 150 feet higher than the present Lake Ontario, contain the remains 

 of the largest single fossil insect fauna at present known, embracing 31 genera 

 and 72 species. The late Dr. S. H. Scudder enumerates the following species: 188 



Elephrus irregularis 

 Loricera glacialis 

 " liitosa 

 " exita 

 Nebfia abstracta 

 Bembidium glaciatum 

 haywardi 

 vestigium 

 vanum 

 preaeteritum 

 expletum 

 damnosum 

 Patrobus gelatus 

 " decessus 

 " frigidus 

 Pterostic/.us abrogatus 

 destitutes 



Coelambus derelictm 

 " cribrarius 

 " infemalis 

 " disjectus 



Gyrinus confinis 



Cymbiodyta exstincta 



Family Carabidae 



Pterostichus fractus 



destructus 

 gelidus 

 depletus 

 Badister antecursor 

 Platynus casus 

 " hindei 

 " halli 

 " dissipatus 

 " desuetus 

 " harltii 

 " delapidatus 

 " exterminates 

 " inter glacialis 

 " inter itus 

 " longaevus 

 Harpalus condilus 



Family Dytiscidae 



Hydroporus inanimatus 

 inundatus 

 sectus 



Agabus perditu.s 



Family Gyrinidae 

 Family Hydrophilidae 





Family Staphylinidae 



Gymnusa absens 



Laihrobium j rust um 



Quedius deperditus 



Oxyporus stiriacus 



Philonthus claudus 



Bledius glaciatus 



Cryptobinm detection 



Geodromicus stiricidii 



cinctum 



Acidola crenata (var. nigra) 



Laihrobium inlerglaciale 



A rpedium still icidii 



antiquatum 



Olophrum celalum 



debilitatum 



" arcanum 



exesum 



" dejeclum 



inhibit um 







Family Chrysomelidae 



Donacia stiria 



Donacia pompatica 



1M Contr. to Can. Pal., 1895. See also bibliography at end of this volume. 



