TO ENTOMOLOGICAL NEWS [Feb., 'll 



ent, but not prominent, almost parallel. Anterior parallel lines scarcely 

 evident. Median line running from the scutellum to about the middle 

 of the thorax, not distinct. Pleurae with a large, smooth shining area. 

 Scutellum rufous, rugose, foveae at base oblique and opaque. Abdomen 

 reddish brown, posterior half piceous, smooth and shining. Legs red- 

 dish brown, long .and slender, pubescent. Wings (immature) hyaline, 

 veins brown. Length, 4 mm. 



Gall. In clusters around the twig of black oak (Qucrcus velutina). 

 Monothalamous. Rounded with the apex pointed, and the sides longi- 

 tudinally grooved. The rounded part is hollow and rather thin walled, 

 and the base of the gall is imbedded in a cavity in the twig. Rose 

 colored, hard and woody (when dry). In general appearance the gall 

 resembles a very small seed onion. Length 5-8 mm. Width 4-5 mm. 



Habitat Indiana. (Mel. T. Cook). 



Andricus pisiformis sp. nov. 



Female. Head dark reddish brown, finely granulated and with short 

 pale hairs. Antennae i3-jointed, reddish brown, terminal joints black- 

 ish. Thorax dark pitchy brown, reddish brown along the parapsidal 

 grooves and laterally, minutely reticulated and with many pits, from 

 each of which arises a short, decumbent, yellowish hair. Parapsidal 

 grooves deep and well denned. Median groove distinct, and less so 

 anteriorly. Lateral grooves deep. Anterior parallel lines not extend- 

 ing to the middle of the thorax. Scutellum reddish brown, rugose and 

 with two large, deep, shining black foveae at the base. These are sep- 

 arated by a fine ridge. Pleurae pubescent, with a rather large shining 

 area, pitchy brown. Abdomen subglobose, inflated, pitchy brown, 

 smooth and shining. Legs brown, punctate and pubescent. Wings 

 hyaline, veins brown, cross-veins heavy. Areolet small. Cubitus not 

 reaching the first cross-vein. Length 2-3.50 mm. 



Gall. On the terminal twigs of white oak {Quercus alba) and post 

 oak (Quercus minor) from the middle of May to early in June. Mono- 

 thalamous. Spherical or pea-like. Milky white or pale greenish white, 

 speckled and marbled with green or lilac. Fleshy when fresh, hard 

 and woody when old and dry. It is hollow inside with no separate 

 larval chamber. It is evidently a bud gall. Diameter 3-6 mm. 



Habitat New Jersey (Lakehurst) ; Massachusetts (Bos- 

 ton). 



The flies mature in the gall during the latter part of Sep- 

 tember and in October, but do not emerge until the following 

 spring. The gall is a pretty object and looks like a very small 

 marble. The specimens on white oak from Boston were col- 

 lected by Miss Cora H. Clarke at the Arnold Arboretum. 



