ART. 10 GALL-INHABITING CYNIPID WASPS WELD 9 



oaks had almost ever}^ twig end affected. The galls contained pupae 

 on May 4 and adults emerged May 6-12, males appearing first. 

 Galls collected at Falls Church :May 2, 1920, gave adults :May 7. 

 Brodie found galls at Toronto. 



NEUROTERUS NOXIOSUS (Bassett) 



The woody stem galls of the agamic generation are very con- 

 spicuous in winter on certain trees of Quercus hicolor at Evanston, 

 111., the adults emerging April 10-14, 1909, April 1, 1910, and May 

 10, 1913. They were seen to oviposit in buds, thrusting the ovi- 

 positor perpendicularly through the bud scales just as the buds were 

 beginning to swell. By May 30 a slight bulging of the midrib of 

 the 3'oung leaves then an inch and a half long has been noted and 

 the galls of the alternating generation are full grown b}^ June 30, 

 greatly deforming the leaves. The adults emerged June 12-July 

 3, 1906. On July 22, 1912, the young stem galls of the winter form 

 were half grown but still green and succulent with no larvae visi- 

 ble. What seemed to be the galls of the sexual generation of this 

 species were collected at Greenport, Long Island, by R. Latham. 



NEUROTERUS PAPILLOSUS Beutenmueller 



Parenchyma galls in the leaves of Quercus hicolor, agreeing with 

 the type galls of this species, were collected at Chesterton, Ind., June 

 25, the adults emerging June 27-29, 1912. They occurred on the 

 leaves of thrifty sprouts and on lower branches of a small tree near 

 by. Exit holes on lower side. Galls were also taken at Wilmette, 

 111., June 9, 1913. 



NEUROTERUS PERMINIMUS Bassett 



The species was described from the sexual generation emerging in 

 late June or early July from oval parenchyma galls in the current 

 season's leaves of Quercus alha. The galls the writer refers to this 

 species differ only in being found in October and yielding adults, all 

 agamic females, in the early spring. Galls collected at Evanston, 

 111., gave flies April 1-23, 1909, and in 1910 from April 4-20. Brodie 

 collected galls in October and reared adults May 9, 1888. 



NEUROTERUS RILEYI (Bassett) 



Galls determined by writer as this species were sent to the National 

 Museum December 12, 1920, from Sulphur, Okla., host oak not 

 given. 



NEUROTERUS SADLERENSIS, new species 



Female. — Head (except about mouth) and abdomen black; thorax 

 brownish, legs yellowish with hind femur and coxa more or less in- 

 6072G— 26 2 



