, 
168 INSECTS INJURIOUS TO FOREST AND SHADE TREES. 
represented at Fig. 75. The arrow indicates a point in the gallery made 
when the larva was smadl. A specimen taken from this mine was also 
submitted to Dr. Horn for identification. It occurred 
under the bark of the southern or yellow pineat Atlanta, 
Ga., where I collected it in April, 1881. 
33. THE SOUTHERN TOMICUS. 
Tomicus cacographus Leconte. 
Injuring the pines of North Carolina and southward even 
more than 7. pini in the north; a very similar beetle, with simi- 
lar habits. ; 
This is the Bostrichus pint of Zimmermann, but not 
the one so named by Say. It inhabits, according to 
| Leconte, the Southern and Western States. It is said 
Fic. 75.—Primary mine by Leconte to be similar to Tomicus calligraphus, but 
of Tomicus calligra- : or as 
phue in yellow pine, IS usually of smaller size (3.5-4™™, .14-.16 inch); the 
Gaorsia. (Packard Gusy of the second interspace is very small, and that 
of the third is wanting; that of the fifth is compressed and scarcely 
‘more prominent than that of the fourth interspace, and is somewhat 
connected with it; there are but two teeth between the tooth of the fifth 
interspace and the terminal acutely elevated margin, and these teeth 
are all of them less prominent than in 7. calligraphusin some specimens 
(&), but equally prominent in others (2), those less acute than in 7. 
calligraphus. The interspaces from the third outward are marked each 
with a regular series of punctures behind the middle, whereby it differs 
from the next species (7. confusus Leconte, of Southern California and 
Arizona). The club of the antenne is quite similar to that of ZT. calli-_ 
graphus.* 
The mine made by this species has been found under the bark of the 
southern pine at Atlanta, Ga., the beetle from it having been labeled 
by Dr. Horn. The mine is like that of C. calligraphus, but the main 
burrow is narrower, being 24™™ wide, and the holes are smaller, the 
beetle itself being smaller. Living beetles were taken from the mine 
March 28, 1881. 
32. PINE BARK-BEETLE. 
Tomicus pini Say. 
From a common center excavating several broad shortish galleries lengthwise of the 
trunk in opposite directions, resembling the spread fingers of a hand; a bark-beetle 
very similar to the preceding, but of smaller size, measuring only 0.15 in length, and 
with but four small teeth on each side of the concave declivity at the tips of its 
wing-covers, and usually showing more or less distinctly an impressed line along the 
middle of the hind part of its thorax. (Fitch.) 
The tracks formed by this insect are so different from those of the 
other species that they are recognized at a glance. They occur under 
*A number of other Se oly tids which probably infest the pine are described by Le- 
conte in his work on the Rhynchophora of America north of Mexico, where all the 
species are characterized, and to which the reader is referred. 
