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aEgeria acerni. Clem. The Maple iEgerian. 
The larva is whitish, of uniform size to 
the eleventh segment, from which it tapers 
suddenly to the tip. It is sometimes dusky 
on the thoracic and last joints of the ab¬ 
domen ; transversely wrinkled, and has a 
deeply depressed line along the back, and 
a longitudinal wrinkle below the stigmatal 
line. Head small, reddish yellow ; cervical 
shield not well defined. Stomata brown, 
the last pair being largest. 
It bores under the bark of the soft Ma¬ 
ples, above ground, and feeds on the inner 
bark and soft sap-wood. 
^Egeria rubi, Eiley. The Easpberry Eoot-borer. 
The larva is pale yellow, with eight shining piliferous spots on 
each segment. Head dark brown, with a few scattered white hairs. 
The cervical shield pale brown, horny. The true legs are tinged 
with brown; pro-legs with dark hooklets; length, .9 to 1.10 inches. 
It burrows in the stems of raspberries and blackberries, entering 
about four inches above the ground, and burrowing into the roots 
where it winters. The next season it emerges about four inches 
above the ground from a different stem than the one it entered. 
HIgeria polistiformis, Harris. The Grape-root Borer. 
The larva of this species is very similar to that of the Peach- 
borer {jE. exitiosa), but is a little larger. It works farther beneath 
the surface of the ground, and, like it, only in the bark and sap- 
wood ; length, when fully grown, from one inch to one and three- 
quarters inches. 
It burrows in the roots of the grape-vine. 
It forms a cocoon of a gummy silk, covered with particles of wood 
or dirt, within or adjacent to the root. 
% 
iEGERiA caudata, Harris. 
The larva of this species lives in the stems of our Wild Black 
Currant (Ribes Jioridum). 
