712 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
changed into a beetle this cell is extended onwards through the bark 
for the escape of the insect. Being a larger species than the preced- 
ing, the galleries which it excavates, and the holes it perforates through 
the bark, are proportionally larger. 
Several dead individuals may usually be 
found in the galleries of this as of the 
other species." (Fitch.) 
J have found the "mines" or galleries 
of this bark-borer under the bark of the 
southern pitch pine at Houston, Tex., 
where ir seemed to be abundant. Beetles 
taken from the mines were sent to Dr. G. 
II. Horn, who kindly identified them as 
T. calligraphy*. Fig. 244 represents a 
typical mine. It consists of a primary 
or main gallery or mine which is 3£ mni 
wide ; the holes for the exit of the beetle, 
of which two are represented in the en- 
graving, being 2""" in diameter. The 
primary gallery is nearly straight, with, 
in the cases noticed by us, only one set 
of secondary galleries arising on one 
side, as represented in the figure. The 
secondary galleries are 
from 1 to nearly 2 
inches in length, and 
at the end a little over 
half as wide as the 
main gallery. At one 
end the main gallery 
opens into a broad irregular cell, where the worm prob- 
ably transforms into the pupa, connecting with the 
hole for the exit of the beetle. 
Another form of cell without any lateral or second- 
ary galleries is represented at Fig. 245. The arrow 
indicates a point in the gallery made when the larva 
was small. A specimen taken from this mine was fh». 246.— Primary mine 
also submitted to Dr. Horn for identification. It oc £J™^^ 
curred under the bark of the southern or yellow pine Georgia. Packard 
at Atlanta, Ga., where I collected it in April, 1881, del 
244. — Mine of lomicus calligraphus in 
southern pitch pine, Houston, Tex. — 
Packard del. 
