224 UNIVERSITY OF COLORADO STUDIES 



fTrechus fractus Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1912, p. 6. Florissant 

 (U. of Colo. Exped.). 



Family DYTISCIDAE 



fAgabus Charon Wickham, Bull. Lab. N.H. Univ. Iowa, May, igi2, p. S. Florissant 

 (U. of Colo. Exped.). 



fA. florissantensis Wickham, Proc. U.S. Nat. Mus., Vol. XLV (1913), p. 285. Florissant. 



fBidessus laminarum Wickham, B.M.C.Z., Vol. LVIII (1914), p. 426. Florissant 

 (Scudder). 



fCoelambus mlocenus Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1912, p. 7. Floris- 

 sant (George N. Rohwer). 



fHydroporus sedimentarum Wickham, B.M.C.Z., Vol. LVIII (1914), p. 427. Florissant 

 (Scudder). 



Family HYDROPHILIDAE 



fCreniphilites (new genus) orpheus Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1913, 



p. 8. Florissant (Wickham). 

 fHydrobius titan Wickham, t. c, p. 7. Florissant (Wickham). 



Family SILPHIDAE 

 fAnisotoma Sibylla Wickham, Proc. U.S. Nat. Mus. , Vol.XLW (igi^), p. 285. Florissant. 

 fHydnobius tibialis Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1913, p. 9. Florissant 



(Wickham). 

 fMiosilpha (new genus) necrophiloides Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1912, 



p. 9. Florissant (W. P. Cockerell). 

 fSilpha beutenmuelleri Wickham, B.M.C.Z., Vol. LVIII (1914), p. 428. Florissant 

 (Scudder). 



Family PAUSSIDAE 



fPaussopsis secunda Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1912, p. 10. Floris- 

 sant (George N. Rohwer). 



Family STAPHYLINIDAE 



tAleocharopsis (new genus) caseyi Wickham, Proc. U.S. Nat. Mus., Vol. XLV (1913), 

 p. 286. Florissant. 



fA. secunda Wickham, t. c, p. 287. Florissant. 



jAtheta (?) florissantensis Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1913, p. g. 

 Florissant (Wickham). 



fDeleaster grandiceps Wickham, Bull. Lab. N.H. Univ.Iowa,May, I9i2,p. 12. Floris- 

 sant (George N. Rohwer). 



fHomalium antiquorum Wickham, Bull. Lab. N.H. Univ. Iowa, May, 1913, p. 11. 

 Florissant (Wickham). 



fLathrobium antediluvianum Wickham, t. c, p. 10. Florissant (Wickham). 



