282 
TOMICUS LONGIFOLIA, MS. 
THE LONG-NEEDLED PINE TOMICUS. 
Plate XVII, fig. 4. 
Reference :—Provisionally determined as Tom*cus longifolia, MS. 
Classification :—Order, COLEOPTERA. Family, Scolytide. 
Sub-Fa:uily, Tomicini. 
Tree attacked :—/vnus longifolia. 
Description. 
Beetle.—Smaller than the Blue Pine Tomicus (Tomzcus sp.) 
and of a very dark ferruginous brown in colour with rufous 
brown longish hairs scattered irregularly over prothorax and 
elytra. The insect has the characters common to Tomicus 
beetles, and from these it is recognized as such. There are five 
teeth on either side of the apical excavation at the apex of 
the elytra, the 2nd and 3rd from the top being the largest. The 
specimens obtained were however in too poor astate of preser- 
vation to make further description possible. 
Length {3 inch or a little more. Pl, XVII, fig. 4, gives a 
side view of the teeth at the side of the apical excavation 
showing how this insect differs from the Blue Pine Tomicus. 
Life History. 
| have as yet only found dead specimens of this beetle in 
galleries beneath the bark of dead trees. it differs from the 
Blue Pine Tomicus both in appearance and in its method of 
tunnelling in the bast and sapwood of the tree. 
This Tomicus bores a straight horizontal entrance hole 
into the tree until it reaches the cambium where a large pairing 
chamber is excavated. From this four long egg gaileries take 
off. In the specimens examined, two of them went up the 
tree and two down parallel to its long axis. These egg galleries, 
which, like the pairing chamber, are bored in the bast and sap- 
wood, contain one or two ‘air holes,’ z.e., holes bored to the 
outside of the tree by the female to letair into the tunnel. 
