252 
THE STUDY OF INSECTS . 
larvas (Fig. 299). The full grown larva attains a length of 
half an inch. The pupa state is passed within the nest made 
by the larvae. The moth is quite large for a Tineid, the 
wings expanding five eighths of an inch. Its general color is 
Fig. 299.— Laverna sabalellu , larva, pupa, adult, and part of injured leaf. (From 
the Author’s Report for 1879.) 
a delicate silvery gray, with a tinge of lavender in some in¬ 
dividuals. 
The Pine-leaf Miner, Gelcchiapinifoliella (Ge-le'chi-a pin-i- 
fol-i-el'la).—It often happens that the ends of the leaves of 
pine present a dead and brown appearance that is due to the 
interior of the leaf having been eaten out. This is the work 
of the Pine-leaf Miner (Fig. 300). At the right season it is 
easy to see the long, slender larva in its snug retreat by 
holding a leaf up to the light and looking through it; and 
later the pupa can be seen in the same way. Near the lower 
end of the tunnel in each leaf there is a round hole through 
which the larva entered the leaf and from which the adult 
emerges. We have found this insect in several of the 
stouter-leaved species of pine, but never in the slender 
leaves of the white pine. In the North it is most abundant 
in the leaves of pitch-pine. 
