Scarabaeidae of Nebraska 111 



37. Side margins of pronotum just in front of the hind angles 

 slightly but distinctly emarginate; inferior and superior genital 

 plates distinctly separated fervida 



Side margins of pronotum not emarginate in front of the hind 

 angles; inferior and superior genital plates not distinctly 

 separated praetermissa 



Phyllophaga lanceolata Say. 



1824. Melolontha lanceolata Say, Journ. Acad. Nat. Sci. Phila., iii, 

 p. 242. Le Conte ed., ii, p. 142. 



Specimens examined : 26 ^ , 35 9 , from South Bend, 

 Lincoln, West Point, Brown Co., Thomas Co., Alliance, 

 North Platte, Ogallala, McCook, Hitchcock Co., Imperial, 

 Mitchell, and the Pine Ridge region of Sioux Co., collected 

 from June 20 to August 27. Lanceolata is uncommon in 

 eastern Nebraska, fairly common in the central part of the 

 state, and abundant in the western counties, where in its 

 larval, or white-grub, stage it is perhaps the most injurious 

 species of the genus for the region. The beetles are diur- 

 nal, feeding in the open like potato beetles, and are found 

 on weeds and herbaceous plants. The females lack the 

 membranous wings and are very thick bodied. The males 

 are distinctly smaller and fully winged. 



Phyllophaga praetermissa Horn. 



1887. Lachnosterna praetermissa Horn, Trans. Amer. Ent. Soc, 

 xiv, p. 221. 



Specimens examined: 29 ^,59 2, from Lincoln, 

 Exeter, Hastings, Osceola, Central City, Grand Island and 

 North Platte, collected from May 10 to June 26, at lights. 



Phyllophaga longitarsa Say. 



1824. Melolontha longitarsa Say, Journ. Acad. Nat. Sci. Phila., iii, 

 p. 241. Le Conte ed., ii, p. 141. 



Specimens examined : 6^,62, from Cams, Keya- 

 paha Co., collected July 24, 1902 by W. D. Pierce. 



217 



