41 



under boards and in sheltered places in all parts of the sand-dune 

 regions. They hibernate in the adult stage. 



Cardiophonis cardiscc Say. April 7. 



A sand insect, being commonly found under boards or other 

 shelter. One specimen, from the Lake Michigan sand region (April 

 14, 1910). One specimen was taken from under a board at the 

 Devil's Neck, and another was found under a piece of tin. On 

 turning the tin over, an ant-nest was disclosed, but as the beetle ran 

 out at once it was impossible to tell whether there were any direct 

 relations between the elaterid and the ants {Phcidole vUielandica) . 



Cardiophonis car disc e, var. April 7. 



Similar to the preceding, but without the four yellowish spots. 

 Taken under a board at the Devil's Neck. 



Drasfcriiis clegans Fab. Havana, April i, 4. 



The species is not typical of sand ; it has become of economic 

 importance, being very injurious to sprouting corn and wheat. Usu- 

 ally found along the borders of cultivated fields, hibernating in the 

 adult stage. Taken under a board at the edge of a cultivated field 

 near the Devil's Hole, and in a similar situation southeast of Havana. 



Linioniiis quercinus Say. June 20, 24. 



A small slender elaterid, commonly found on leaves of oak and 

 hazelnut. A common forest species, not restricted to sand. Taken 

 on herbaceous plants on the road to the Devil's Hole. 



Acmaeodera pulchcUa Hbst. July 5. 



A prettily marked buprestid, belonging to a large genus repre- 

 sentative of the southwestern and Pacific states. This genus is a 

 departure from typical buprestids, which are normally borers in 

 forest trees. Found on flowers of Chrysopsis along railroad track. 

 Occurs on many flowers, especially those of Ccanothus aiiiericanits. 

 Probably in this region a typical, though infrequent, member of the 

 bunch-grass association. 



Acmaeodera tiibulus Fab. June 23. 



Hart found adult* of this species in flowers of Opuntia and 

 Chrysopsis. It is recorded from other parts of Illinois, and Blatch- 

 ley mentions it as common throughout Indiana. A species of dry 

 prairie regions. 



Calopteron reticulafitm Fab. October 6, April 4. 



The elytra of this lampyrid are broadly banded with black and 

 yellow, and are soft and broadened out, so that the insect has a 

 certain superficial resemblance to a moth. The fireflies of the whole 



