INSECTS INJURIOUS TO THE FIR TREE. 235 
92, THE EUROPEAN SPRUCE BUD-LOUSE. 
Adelyes abietis Linn. 
We observed this species in considerable numbers on the Norway 
spruces on the grounds of the Peabody Academy of Science at Salem, 
in August 1881. The deformation produced in the terminal buds and 
twigs were like those figured in Ratzeburg’s Die Waldverderbniss, Bd. 
i, pl. 28, figs. 1, 2. 
23. SPRUCE-TREE PLANT-LOUSE. 
Lachnus abietis Fitch. 
Occurring on Abies nigra; the wingless females pubescent, broadly oval, blackish, 
clouded with brown, with a faint ashy stripe on the back; under side mealy, with a 
black spot near the tip; antenne dull white, with a black ring at the tip of each 
joint. Length to the tip of the abdomen 0.15 inch. (Fitch.) 
It is probably this species which we have found in abundance on the 
terminal branches of spruces at Brunswick, Me., in July and August. 
24, THE SPRUCE-TREE LEAF-HOPPER. 
Athysanus abietis Fitch. 
Order HEMIPTERA ; family TETTIGONIID. 
Puncturing their leaves and extracting their juices the latter part of May and 
during the month of June, an oblong black shining leaf-hopper 0.20 long, tapering 
posteriorly, and broadest across the base of the thorax, with a light-yellow head, 
having the mouth black and also two bands upon the crown, the ends of which are 
often united, and commonly with a white streak on the middle of the inner edge of 
the wing-covers, its legs being pale yellowish varied more or less with black. 
“Y first met with several specimens of this insect eleven years since, 
upon the black spruce and fir balsam, on the summit of the Green 
Mountains, in an excursion hither with that martyr of science, the late 
Prof. C. B. Adams. Since then I have repeatedly captured this same 
insect upon birch trees, distant from any spruces, and it is possible it 
might have been accidently present on these latter trees in the instance 
first mentioned, there being numerous birch trees in the same vicinity.” 
(Fitch.) 
INSECTS INJURIOUS TO THE FIR TREE (Abies balsamea). 
AFFECTING THE TRUNK. 
1. THE PINE LONGICORN BORER. 
: Monohammus confusor Kirby. 
Fully grown larve, very large and long, and evidently ready to pu- 
pate, occurred under the bark of a dead fir near the Glen House, White 
Mountains, July 22. <A fir tree was evidently killed by these borers at 
Merepoint, Brunswick, Me., as from the freshly cut stump a fully grown 
