36 Bulletin of the Brooklyn Entomological Society Vol.X 



Yucca, or " Spanish Needle," abounds, and the shifting sands 

 expose their large bulbous roots. I have collected over this 

 ground for a quarter of a century and hardly a year passes without 

 my meeting with surprises in the beetle fauna. Species, common 

 one year, will disappear for a term of years, while rarer forms 

 occasionally become fairly common. The bare sands and the 

 margins O'f the pools are the favorite resort and breeding places of 

 Cicindelidae. Of this family I have collected near Medora, Reno 

 County, the following: 



Tetracha virginica, Cicindela scutellaris, formosa, venusta, 

 tranquebarica, repanda, hirticollis, var. ponderosa, punctulata, 

 lepida. 



These species are taken commonly in May and June and scutel- 

 laris, formosa, venusta, tranquebarica, hirticollis, and punctu- 

 lata in September and the first half of October. C. lepida and 

 venusta are the rarer forms. 



On the sides of the dunes one will see little piles of fresh sand ; 

 digging down below the surface one frequently uncovers the light 

 yellow colored Geopimis fiuvialis Casey. In the latter days of 

 September, or the warm days of early October, one can sometimes 

 find the large Elaterid, Orthostethus infuscatus, feeding on decay- 

 ing watermelons, where a patch of this fruit occurs on the farms 

 covering a part of the sand hill country. Feeding with the 

 Elaterid may also be found the large and showy Tragidion caquus 

 and more rarely the variety fulvipenne. Gorging themselves on 

 the melons may also occasionally be found, at this season of the 

 year, the Euryomid, Stephanucha pilipennis. This species may 

 also be found in May crawling over the surface of the sand or 

 even burrowing beneath the surface. 



The beautiful little Clerid, Hydnocera Knausii Schaefifer is 

 sparingly found in sweeping the plants growing on the prairies 

 and cultivated fields of this region. It occurs usually in May 

 and June and is also found as late as September. Other Hydno- 

 cera taken by beating vegetation are subfasciata, humeralis, pubes- 

 cens, pedalis, and longicollis. Pedalis is taken only rarely. Luca- 

 nus placidus occurs occasionally under pieces of wood or cow 

 chips and sometimes a dead specimen is found lying on the sand. 



