IXSECTS AFFECTING PARK AND WOODLAND TREES 95 



not show the destructive work of this insect. Many of the trees were 

 completely honeycombed by the larvae. 



Description. The adult insect is cylindric and rantjes in lenL,^th from a 

 trirtc over J< to aljout 3^ inch. It is a dull black color, brightly marked 

 with golden yellow, as shown in plate 5, figure 3. The antennae and legs 

 are a dull yellowish. 



The pupa is nearly ."4 inch long, stout, flattened, yellowish and with 

 the dorsum of the head and anterior six abdominal segments dotted with 

 irregularly arranged chitinous points. There are two clusters, one on each 

 side of the median line, of three to six small hooks on the dorsum of the 

 seventh abdominal segment. A slightly larger hook occurs behind each of 

 these clusters and on the posterior half there is a transverse row of about 

 10 hooks. The eighth segment bears a smaller transverse row of about 5 

 hooks. The antennae extend to the second abdominal segment and the 

 wings and legs are appressed to the breast. 



The larva is six or seven tenths of an inch long, somewhat flattened, 

 club-shaped, the thoracic segments being considerably broader than the 

 abdominal ones, but at the same time distinctly flattened above and below. 

 The head when extracted from the thorax appears almost circular and nar- 

 rower than the prothorax. The latter is twice broader than long, rounded 

 anteriorly, flattened above and below, brownish yellow, covered, especially on 

 the sides and below, with a short golden pubescence. A deep, longitudinal 

 sinuated furrow is visible on each side, a short transverse furrow crosses its 

 posterior end. The upper disk is inclosed between two furrows beginning 

 at the posterior margin, and not reaching the anterior one ; a transverse 

 furrow parallel to the posterior margin, separates a narrow fleshy fold. The 

 anterior portion of this upper disk is irregularly punctured and wrinkled, 

 although shining ; in some specimens it has an indistinct,elongated, somewhat 

 oblique brownish spot on each side, about the middle ; the posterior portion 

 of the disk is opaque, covered with dense longitudinal wrinkles, among 

 which a straight impressed line is apparent in the middle. The ventral side 

 is irregularly punctured on the sides, and has a depression in the middle 

 which is less apparent in some specimens. 



The other two thoracic as well as the two first abdominal segments 

 have, above and below, a transverse flattened opaque disk, limited on each 

 side by a furrow, and showing some indistinct furrows on its surface ; the 

 other abdominal segments have the usual protuberances, on the dorsal as 

 well as the ventral side, marked with wrinkles. The last segment is short 



