No. 22] HYMENOPTERA OF CONNECTICUT. 769 



the Striae are sometimes oblique and irregular. Parapsidal 

 grooves obliterated, or only slightly indicated anteriorly. Scutel- 

 lum coarsely rugose with the fovese large, deep and separated 

 by a carina. Pleurae rugose, usually pubescent and sometimes 

 with a raised polished area. Abdomen black, dark brown beneath, 

 and margins of second and following segments brown. Legs 

 reddish yellow. Wings hyaline, veins distinct, dark brown, first 

 cross-vein angulated and enclosed in a brown patch. Areolet 

 large. Length 4.6 to 5 mm. 



" Gall. Issuing from a bud on quercitron or yellow oak 

 (Quercus velutina) and red oak (Quercus rubra) in autumn. 

 Almond-shaped, acuminate, at tip, compressed with the opposite 

 sides keeled. Green or red when fresh and brown when old. 

 Rather thick-shelled and smooth. Internally it is hollow with a 

 central larval cell held in position by radiating fibres. Length 

 12 to 20 mm." 



(For other species of Amphiholips see pages 404-408.) 



Andricus (Callirhytis) fructicola Ashmead. 



Originally described in Proceedings U. S. National Museum, 

 Vol. xix, page 131, 1896, as follows: — 



" Gall. This gall consists simply of the white kernel or larval 

 cell embedded in the interior or meaty portion of the acorn, or 

 when on the outside near its base, generally hidden by the cup. 



" Two or three acorns in Dr. Riley's collection, aflfected by 

 this species, when cut open, revealed more than a dozen larval 

 cells, closely pressing upon one another, and filling the whole in- 

 terior of the acorn. 



" Gall-fly. Female. Length 3 to 3.6 mm. Brownish red, the 

 eyes and middle and posterior tibiae dark brown. 



" Antennae 13-jointed, filiform, the scape clavate, as long as 

 the third joint, the fourth joint one-third shorter than the third. 

 Head and thorax closely, minutely rugosely punctate, subpubes- 

 cent; the parapsidal grooves distinct, entire; anteriorly are two 

 short grooves reaching to near the middle of the mesonotum, 

 and the groove on the shoulders is long. Foveae of scutellum 

 large, separated only by a carina. Mesopleura punctate, slightly 

 aciculated posteriorly. Abdomen longer than the head and thorax 

 together, gradually rounded off posteriorly, and [as seen] from 

 below a little obliquely rounded, the second segment occupying 

 49 



