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Published online by Cambridge University Press: 31 May 2012
Xylococcus quercus, n. sp. (Plate 7, figs. 1 and 2.)
Egg quite large, of a light orange colour.
Young larvœ dark orange-red, active, body broadly oval, abont ⅔ mm. long. Legs and antennæ light brown, well developed. Antennæ short, 6-jointed. Joint 1 stoutest, joint 6 longest, and joint 4 shortest. Formula: 651234. Joints 2 and 5 with three bristles. Joint 6 with numerous long stout bristles. Legs moderately long, with femur quite swollen. Tarsus longer than tibia. Digitules of tarsus fine hairs; those of claw long stout clubs curved upwards. Each segment of abdomen bears a backward directed short stout spine. On each side of anal tube is a long fine bristle. Anal tube large, with numerous stont spines. Stigmatal tubes well developed.