An associational study of Illinois sand prairie . e were taken with^^P^ ai^^ Necrophorus on the body of a field mouse, trapped two orthree days previous. Saprinus sp. (undetermined). July 29, A black species of moderate size, taken under a board at theDevils Hole. Histeridae, especially those of this genus, are very character-istic of sandy shores, ¥;h6re they are often found in remarkable abun^dance. A number of species are found on the banks of the Illinoisriver, and the Lake Michigan sand beach also shows an unusual devel-opment. About half the species listed by Blatchley for Indiana havebe
An associational study of Illinois sand prairie . e were taken with^^P^ ai^^ Necrophorus on the body of a field mouse, trapped two orthree days previous. Saprinus sp. (undetermined). July 29, A black species of moderate size, taken under a board at theDevils Hole. Histeridae, especially those of this genus, are very character-istic of sandy shores, ¥;h6re they are often found in remarkable abun^dance. A number of species are found on the banks of the Illinoisriver, and the Lake Michigan sand beach also shows an unusual devel-opment. About half the species listed by Blatchley for Indiana havebeen taken in the Lake Michigan region; many of the others beingtaken from sandy localities in the interior of the state. Melanophthalma distinguenda Com. April 5. A small scavenger beetle of the family Lathridiidae. Commonujider bark and logs; hibernates in the adult state. In summer thebeetles are taken in flov/ers, particularly those of the black haw,yiburnam prunifolium. Taken under a log southeast of Havana, near border of black-jack 122 Lacon rectangularis Say. June 25, April 1, 4, 5. This broad, dark colored Elaterid is one of the most character-istic sand insects, being restricted to sandy soil. Pound abundant-ly under boards and in sheltered places, in all parts of the sanddune regions. They hibernate in the adult stage. The click beetles are so called from the peculiar habit ofspringing up into the air when placed upon their backs, effected bya sudden movement of the joint between the meso- and meta- sterna. Alaus oculatus Linn. July 25. The larva of this v/as found in the Quercus velutina forest; itwas kept alive and the adult emerged a fev/ months later. It is aforest species, not restricted to sand. Cardiophorus cardisco Say. April 7. A sand insect, being commonly found under boards or other shel-ter. I have one specimen from the Lake Michigan sand region (April14, 1910). One specimen was taken from under a board at tb-e DevilsNeck, another was found under
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