Scarabaeidae of Nebraska 117 



Specimens examined: 1 S, from Rulo, June 30, 1915, 

 collected by L. Bruner. 



Phyllophaga crenulata Froelich. 



1792. Melolontha crenulata Froelich, Naturforscher, xxvi, pp. 92- 

 94, pi. 3, fig. 2. 



Specimens examined: 55 5 , 40 ?, from South Sioux 

 City, Hooper, Ashland, West Point, Lincoln, Wood River 

 and Halsey, collected from April to June 25. Most of the 

 males were taken at lights and nearly all of the females 

 feeding on foliage, distributed as follows: elm 14, dog- 

 wood 10, gooseberry 8, prickly ash 4. 



Phyllophaga tristis Fabricius. 



1781. Melolontha tristis Fabricius, Species Insectorum, i, p. 39. 



Specimens examined: 21 $ , IS 2, from South Bend, 

 Lincoln, West Point, Halsey, Warren, and Chadron, col- 

 lected from April 23 to May 19. Mr. H. H. Smith fur- 

 nished the specimens from Warren, and reported that the 

 species was flying in large numbers on the evening of May 

 19, 1918. On the same evening the heavy flight of tristis 

 attracted the attention of Mr. L. M. Gates at Chadron, who 

 sent in specimens for identification. Consequently even 

 though comparatively few specimens are here recorded one 

 may safely conclude that tristis is a rather common species 

 in suitable localities over the state. 



Phyllophaga lenis Horn. 



1887. Lachyiosterna lenis Horn, Trans. Amer. Ent. Soc, xiv, p. 287. 



Specimens examined : 1 $ , 1 9 , from Lincoln, and 

 Mitchell, collected from July to August 8. It may be that 

 lenis is fairly common, but has been largely overlooked in 

 collecting because of its late season of flight. 



223 



