1:!fi,S INDIANA COLEOPTERA. 



It will be seen that, exclusive of the Rhynchophora, 2,535 species 

 of Coleoptera are known to have been taken within the bounds of 

 Indiana. In addition, 777 species have a known range which ren- 

 ders it probable that they may also occur within the State. These 

 have been included in the keys and, in most instances, brief men- 

 tion has been made in the body of the text of their color, length and 

 range. They can, therefore, for the most part, be readily identified 

 by future collectors. 



While the number of speeie.s which may occur but have not 

 been taken may seem very large, it must be remembered that no 

 continuous collecting by trained eoleopterists has been done, but 

 only such species taken as time and opportunity afforded during 

 the intervals from other work. It is very probable that two or 

 three seasons devoted solely to collecting would raise the number 

 of species, aside from the Rhynchophora, to more than 3,000. 



The following table of families shows the number of species of 

 each which are known to occur, and are therefore listed and de- 

 scribed ; also the number of species of each family which are in- 

 cluded in the keys as being of probable occurrence within the State. 

 The forms listed as varieties are not included : 



No. of Species No. of Species of 



Family. Known, to Occur. Probable Occurrcin < . 



I. Cicindelidte ............... 10 1 



II. Carabidrc ................. 3<i<; 75 



III. Haliplidse ................. 10 1 



IV. Dytiscidre ................. 70 23 



V. Gyrinidre ................. 15 4 



VI. Hydrophilidse ............. 54 14 



VII. Leptinidse ................. 1 



VIII. Silphidse .................. 3H 17 



IX. Scydmsenidse .............. 21 19 



X. PselaphicUe ............... 41 42 



XI. Stapbyliuidre .............. 304 119 



XII. Trichopterygidre ........... 8 12 



XIII. Scaphidiidse ............... 13 5 



XIV. Pkalncridffi ............... 9 2 



XV. Corylophidre .............. 8 9 



XVI. Ooceinellidre .............. 49 4 



XVII. Endomychidre ............. 10 2 



XVIII. Erotylidre ................. 22 4 



XIX. Colydldse ................. 14 10 



XX. Rhyssodirtre ............... 2 



XXI. Cucujidse ... 17 8 



