238 DAVENPORT ACADfeMY OF SCIENCES. 



vex anteriorly, its branch hyaline at its extremities ; stigma honey yel- 

 low, darkest on the costal margin, the apical end lanceolate ; inwardly 

 extending to the base of the wiug, all the costal space being of the 

 same color. Posterior wing, one longitudinal vein and no discoidal. 

 Tibite and tarsi with a few scattering hairs ; claws palish-horn colored, 

 with black tips. Antenna four-jointed, sublinear, first ; nd second short 

 and thick, the others long, the third on a narrow pedicel, which may be a 

 small joint, fourth clavate. Length to tip of wings .07 inch ; body about 

 .025 inch long. 



The winged males [females] were numerous, but, as the weather then 

 was very wet, they were in an extremely bad condition, their wings adher- 

 ing to the walls of the galls and to their own bodies from the excessive 

 dampness in the galls ; but among the hundreds observed I saw a number 

 of perfect specimens. Subsequently, in more pleasant weather, I exam- 

 ined several dark green, more perfectly globular galls, located as those 

 observed before, with a good supply of winged specimens in perfect con- 

 dition. 1 made careful examination and notes as before, and found that 

 they agreed with the former precisely and compared favorably with the 

 former dried specimens." 



Shimer adds (Trans, of the Am. Ent. Soc, Vol. 2, p. 393, Gall 

 No. 10) that this with No. 8 {caryts-semen} " are the only known 

 Hickory galls that have the character of being soft and leathery 

 in structure. The perfect insect was found between Sept. 20th 

 and Oct. 20th, 1866, since which time I have not seen it. I then 

 described it as being found on what I supposed to be Carya glabra, 

 but which now proved to be C. amara." 



" This is manifestly distinct from carycB-^globuli Walsh, which 

 is said to mature in June, while globosum matures in October; 

 and the openings of the galls are quite different in shape, that 

 of globosum being round and on a nipple-like projection, while 

 that of caryce-globuli is an elongated slit." 



Dadylosphcera coniferum Shimer, I consider to be but a variety 

 of D: globosum. 



Phylloxera cary^-gummosa Riley. 

 PL VI., fig. 37; PI. XIII., figs. 95-97. 



Phylloxera carycs-gummosa Riley. Seventh Rep. Nox. and Ben. 

 Ins. of Mo., p. 118. 



Phylloxera caryce-gummosa Thomas. Kighth Rep. Nox. and 

 Ben. Ins. of Ills., p. 164. 



