766 REPORT OF NEW JERSEY STATE MUSEUM. 



MELANOSTOMA Schiner. 



M. obscurum Say. Caldwell (Cr) ; Ft. Lee (Osburn) ; Riverton IV, 26 

 (CG); Westville VI, 15, IX, 10 (Jn). 



M. mellinum Linn. Caldwell (Cr) ; Ft. Lee (Osburn); New Brunswick 

 (Sm) ; Jamesburg VII, 4, Westville V, 19 (Jn) ; Trenton V, 21, Clemen- 

 ton V, 30 (Hk). 



DIDEA Macq. 



D. fasciata Macq. (fuscipes Loew.) Jamesburg, Westville VIII, 21, 

 Clementon V, 16, Ocean Co. V, 18 (Jn) ; Delair X, 19, lona IV, 30 

 (Dke). 



SYRPHUS Fab. 



S. arcuatus Fall. New Brunswick V, 3 (Sm) ; Camden IX, 14, Westville 

 IV, 16 (Kp); Clementon X, 1 (Hk). 



S. perplexus Osburn. New Jersey (Osburn). 



S. ribesii Linn. Newark VI, 14, Westville VIII, 14, Cumberland Co. IX, 1. 



Fig. 316. 



Fig. 316. Syrphus torvus: much enlarged. 



Fig. 317. Larva a and b, pupa c, of Syrphus torvus: much enlarged. 



S. torvus O. S. Caldwell (Cr) ; Camden V, 26 (CG) ; Westville IX, 13 

 (Jn) ; Prospertown, common in Monmouth and Burlington Cos., feed- 

 ing on the wheat-louse; the species of this genus are usually feeders 

 upon plant-lice (Sm). 



S. grossulariae Meig. (iesueurii Macq.) Dunnfield VII, 14, Atco VI, 13 

 (Jn); New Brunswick VII, 9, Prospertown VI, 6 (Sm); Anglesea V, 

 31 (Brn). 



