PLATE VI. 



All the drawings are by J. Henry Blake, and all the specimens drawn are from Florissant, 

 Colorado. 



. Quedius breweri 49 



. Quedins breweri 49 



. Laasbium sectile 50 



. Laasbium agassizii 49 



. Philonthus marcidulus 54 



. Staphylinus lesleyi 51 



. Staphylinus lesleyi; antenna 51 



. Philonthus marcidulus 54 



. Philonthus invelatus 55 



. Philonthus invelatus; antenna 55 



. Staphylinus vetulus 52 



. Staphylinus vetulus; head 52 



. Philonthus marcidulus . . .54 



. Philonthus marcidulus 54 



