*30 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
under the bark of the spruce. The cells, like those found iu the pine 
branches, were situated under the bark of the trunk of spruces 6-12 
inches in diameter, and contained the pupa or more commonly the 
imago. The beetles were also found flying about at this date. 
13. The ribbed kiiagium. 
Bkaginm Uneatum Olivier. 
Already described on p. 704, this insect occurred in the larva state in 
abundance under the bark of spruce stumps and standing trees, loosen- 
ing the bark, but never doing any mischief, as far as we are aware, to 
the living tree. Small larvae, only 4 or 5 mm in length, occurred in 
spruce stumps August 25, while others were 14 mm long. Fully grown 
ones occurred in neighboring pine stumps, and one, after having been 
kept in confinement until the last of September went into the pupa 
state. The eggs from which the smaller 
ones hatched were probably laid in the 
early summer; the trees containing these 
grubs were cut down in November, 1880, 
so that it is not probable that the larva 
lives more than one year. 
m 
\ 
U: 
* 
14. Xylotrechu8 undulatus Say. 
This longicorn is with little doubt a borer 
in the spruce (see Lintner Ent. Contr. rv, 
96), and I have beaten it out of spruce 
trees at the end of July. I have also re- 
ceived it from Tacoma, Wash., and it 
occurs in Northern New York according 
to Mr. Hunt. 
AFFECTING THE LEAVES. 
15. The spruce-bud worm. 
Tortrix fumiferana Clemens. 
Order Lepidoptera; family Tortrichxe. 
(Plate VIII, moth, tigs. 1, la; larva, figs. 16, lc, 
Id: pupa, le, If. Map, PI. XII : also, for rav- 
ages, Pis. XIII and XIV.) 
The most destructive enemy of the 
spruce and fir in Lincoln, Sagadahoc, and 
Cumberland Counties, Me., is the Spruce- 
bud worm. 
The habits of this insect while in confinement have been studied by 
Prof. C. H. Fernald, formerly of the Maine State Agricultural Col- 
lege, Orono, Me., and his account published in the American Naturalist 
Fig. 281. — Xylotrechii8 undulatue. 
