THE INSECTS OF NEW JERSEY. 



603 



D. nebulosus O. S. Common 

 throughout the State; 

 galls VIII-VI, on stalks 

 of blackberry, "Rubus 

 villosus" (Bt). 



D. cuscutaeformis Harr. Lo- 

 cally common throughout 

 the State, galls on stems 

 of blackberry "Rubus 

 villosus" (Bt). 



D. radicum Bass. Through- 

 out the State, locally 

 common; galls at roots 

 of black, raspberry and 

 dewberry (Bt) ; rarely 

 occurs in cultivated 

 fields, and never as an 

 injurious form. 



D. bassettii Beut. Ft. Lee 

 Dist., Lakehurst, galls on 

 stem at root of dewberry, 

 "R. canadensis" (Bt) ; 

 Staten Island (Ds) ; 

 Riverton IV (Dke). 



a 



Fig. 244. Blackberry knot gall, Diastrophus n 

 bulosus: a, gall showing exit holes of adult, 

 natural size; b, section through same 

 showing the cells; c, larva, enlarged; 

 d, pupa, enlarged. 



AULAX Hart. 



A. similis Bass. (Diastro- 



phus) Alpine VI, not 

 common; galls on stems 

 and leaves of ground ivy, 

 "Nepeta glechoma" (Bt). 



A. podagrae Bass. Staten Island; galls on wild lettuce VIII-VI (Bt). 



A. tumidus Bass. (Aulacidea) Local throughout the State; gall on stalk 



of wild lettuce, "Lactuca canadensis" (Bt). 

 A. mulgedicola Ashm. (Aulacidea) New Jersey Dist. (Ashm) ; gall in 



pith of wild lettuce "Mulgedium acuminatum" (Bt). 



RHODITES Hart. 



R. semipiceus Harr. Ft. Lee; galls on roots of "Rosa lucida," "Carolina" 

 and "rubiginosa" (Bt). 



R. radicum O. S. Staten Island (Ds) ; Ft. Lee, galls on roots of "R. Caro- 

 lina" (Bt). 



R. rosasfolii Ckll. Ft. Lee Dist., galls on leaves of "Rosa lucida" (Bt). 



R. nebulosus Bass. Staten Island (Ds) ; Ft. Lee Dist., galls on leaves of 

 "Rosa lucida" and "rubiginosa" (Bt). 



R. globuloides Beut. Staten Island (Ds) ; Ft. Lee Dist., galls on stems of 

 "Rosa Carolina" (Bt). 



