\^ol. Xxix] ENTOMOLOGICAL NEWS. 125 



Described from one female and three males collected by 

 Dickerson and Weiss at Jamesburg, New Jersey, and in the 

 Parshley collection and from one female and two males in the 

 Weiss collection. Many other specimens from the same local- 

 ity have been examined. Food plant of this species is wild 

 cherry, Prunns serotina." 



Up to the present this species has been found only at James- 

 burg in New Jersey and appears to be rather well distributed 

 over a small wooded section in that locality. 



Explanation of Plate VII. 

 Corythucha spinulosa Gibson. 

 Fig. I, cherry leaf showing feed- Fig. 5, third stage nymph. 



ing. Fig. 6, fourth stage nymph. 



Fig. 2, egg. Fig. 7, fifth stage nymph. 



Fig. 3, first stage nymph. Fig. 8, adult. 



Fig. 4, second stage nymph. 



New and Old West Indian and North American 

 Chalcid-flies (Hym.). 



By A. A. GiRAULT, Glenn Dale, Maryland. 

 GROTIUSOMYIA new genus. 



Belongs to the Ophelinini. Habitus and structure of the 

 Entedonini. 



9 . Head (cephalic aspect) triangular, the antennae in- 

 serted at the ventral ends of the eyes, the scrobes forming a 

 narrow, acutely pointed triangle ; antennae lo-jointed, short 

 and clavate, two very thin ring-joints, the club 2-jointed and 

 obtuse at apex. Mandibles broad, at apex with twelve equal, 

 minute teeth. 



Pronotum distinct, of moderate size. Parapsidal furrows 

 complete, much curved, narrow like a suture. Axillae a little 

 advanced, with blunt apex. Scutellum simple. 



Propodeum with a very strong median carina and a "com- 

 plex" lateral one consisting of two carinae diverging at once 

 from base or nearly, opening disto-laterad, the cephalic arm 

 forming the cephalic margin of the propodeum and nearly 

 against which is the moderate, oval-reniform spiracle ; the oth- 



