THE INSECTS OF NEW JERSEY. 



SERICA MacL. 

 S. vespertina Gyll. Throughout the State V, VI; common. 



S. iricolor Say. Ft. Lee Dist. (Bt) ; Ocean Co., on scrub oak VI (Sm); 

 DaCosta, Atco (Li) ; Atlantic Co. (W) ; local. 



S. sericea 111. Throughout the State V, VI; common. 



S. trociformis Burm. Ft. Lee Dist. (Bt) ; throughout the pine barrens 

 all V and early VI, getting only a little into the Delaware Valley 

 region. 



MACRODACTYLUS Latr. 



Fig. 126. The "rose-bug," Macrodactylus subspinosus: a, adult beetle; b, larva; e, pupa; 

 c, d, structural details, all enlarged; f, grape leaf showing injury and 

 beetles at work natural size. 



M. subspinosus Fab. The "Rose-bug" or "Rose chafer"; common 

 throughout the State, often coming in such hordes as to destroy the 

 blossoms of roses and other plants blooming in June, and in vine- 

 yards in some sections utterly destroying the grape crop by eating 

 the blossoms. They also eat into a variety of fruits, including apples 

 and do great mischief in that way. The larvae feed on the roots 

 of grasses and other vegetation in waste land and are beyond reach 

 of destructive measures. Practically, spraying plants to be protected 

 with heavy doses of arsenate of lead or collecting the adult beetles 

 as they come on, by collectors adapted to the special work, are our 

 only resorts. 



M. angustatus Beauv. Jamesburg VII, 4 (Bt) ; Riverton V, 28 (GG) ; 

 Anglesea VI, VII, oil oak (div). 



