164 
BRITISH GALLS 
Hymen- 
optera 
> > 
) ) 
Slight fusiform swelling, about 2 to 3 mm. long, on the 
petiole or the midrib, glabrous, green. This gall much re¬ 
sembles those o i Andricus trilineatus Hartig (see No. 228), 
which occur in similar situations, and the imagines are so 
much alike that, according to Adler, they cannot be dis¬ 
tinguished with certainty. Imago, August or September, I. 
Andricus testaceipes Hartig 236 
Connold, Oak Galls, pi. 16; Plant Galls, figs. 196, 197. 
Houard, No. 1318. Adler and Straton, Alternating 
Generations, pi. 1, fig. 6 a. 
At the base of very young oaks and on twigs and 
branches which touch the ground. Galls gregarious, 
appearing as little red excrescences in longitudinal chinks 
in the bark, each assuming later the shape of an obtuse 
cone. The outer covering dries up at maturity and falls 
away, leaving a conical hard gall 5 to 6 mm. high and 
4 to 5 mm. in diameter, marked with longitudinal striae 
extending from the base to the summit. Imago, March, III. 
Andricus testaceipes, form Sieboldi 237 
Syn. Andricus Sieboldi Hartig ; Apliilothrix Sieboldi 
Hartig. 
Connold, Oak Galls, pis. 27 30; Plant Galls, fig. 172. 
Houard, No. 1293. Adler and Straton, Alternating 
Generations, pi. 1, fig. 6. 
Gall developed from a terminal bud, rounded, fleshy, 
smooth, yellowish tinted with reddish-brown, varying in 
size from that of a walnut to a small apple. In section 
showing numerous ovoid larval cavities, with the longer 
axis parallel to the branch which bears the gall. Imago, 
June or July, I. (Plate IV. 1.) 
Biorrhiza pallida Oliv. 238 
Syn. Teras terminalis Fab.; Biorrhiza terminalis Cam. 
Connold, Oak Galls, pis. 56, 57; Plant Galls, fig. 174. 
Houard, No. 1262. Adler and Straton, Alternating 
Generations, pi. 2, fig. 1 ja. 
On the subterranean roots, sometimes at a depth of 
3 feet. Galls at first brownish-yellow, or reddish in parts ; 
they occur on roots of all sizes ; the surface is warty and 
substance fleshy. At maturity the gall is blackish-brown, of 
a woody consistency, and about the size of a pea or a cherry, 
and contains one or many larval cells. Often gregarious, 
sometimes welded together into a large mass. (Plate IV. 5.) 
Biorrhiza pallida, form aptera 239 
Syn. Biorrhiza aptera Bose; Biorrhiza terminalis Cam. 
Connold, Oak Galls, pis. 31-34 ; Plant Galls, fig. 165. 
Houard, No. 1289. Adler and Straton, Alternating 
Generations, pi 2, fig. 17. 
