244 INSECTS INJURIOUS TO FOREST AND SHADE TREES. 
5. THE WESTERN SPRUCE LONGICORN BORER. 
Anthophilax mirificus Bland. 
Order COLEOPTERA; family CERAMBYCID&. 
This beautiful beetle I found June 16, 1877, under the bark of a large 
fir-like spruce, probably Abies menziesii, on the side of a high hill near 
Virginia City, Montana. The small male was sexually united with the 
black female, and there were several other females near by. From 
these circumstances I have little doubt but that it bores into this tree. 
There is a great disparity in size and color between the sexes, and the 
male is much the smaller and is blue-black, with most of the elytra deep 
brick-red, the ends of the elytra being blue-black, as well as an oblong 
oval spot at the base of the united elytra; the terminal two-thirds of 
the abdomen is reddish; it is 16™™ long; the female is 21™™ long, and 
entirely blue-black. It was identified by Dr. Horn. 
INSECTS INJURIOUS TO THE JUNIPER (Juniperus virginianus). 
AFFECTING THE TRUNK. 
1. THE JUNIPER BARK BORER. 
Pihleosinus dentatus (Say). 
Order COLEOPTERA; family SCOLYTID2. 
Making a short straight primary gallery, with about 15 to 50 longer secondary gal- 
leries branching from it at nearly right angles, often ending in round holes perforating 
the bark; a small white curved grub, changing to a light brown cylindrical beetle. 
We have observed the depredations of this common beetle on the 
junipers about the city of Providence. The attacks were confined to 
sickly or dead trees; whether the cause of death was due to the attacks 
of this beetle or not could not be ascertained. The beetles were found 
May 2 and 13 alive in the burrows, which also contained the fully grown 
larvee; but no pupe were observed. In one fallen juniper tree, the 
trunk of which was about five inches in diameter, the mines were unu- 
_sually close together and abundant, 15 occurring on one side of the 
-trunk in a space about one foot long. Selecting a separate average 
mine for description, such as is figured in the accompanying engraving, 
‘the main or primary gallery is 18™™ to 25™™ (14 to 24 inches) long and . 
-3mm wide, widening at one end into a trilobed chamber twice as wide as 
the main gallery. In a gallery 25"™ long, including the three-lobed cell, 
from which no lateral or secondary galleries proceeded, there were 48 
secondary galleries on one side and 51 on the other, the mouths of the 
opposing tunnels being alternately arranged. The secondary galleries 
being a little less than 3™™ in width; those arising at each end of 
the primary gallery are 45™" long; those arising near the middle from 
one-third to one-half and two-thirds as long; the ends ofthe tunnels are 
