PINE INSECTS. 809- 
twigs that the bases of the leaves are completely covered. The imma- 
ture insects are not so easily seen with the unaided eye, as they differ 
but little in color from the tree. They are greenish yellow, and are 
usually to be found in the angles formed by the bases of the leaves. 
The larva3 of both sexes and the adult females are similar in form (see 
Plate X, Fig. lb). The posterior end of the body is furnished with two 
prominent lobes, each terminated by a long hair. Between these lobes 
there is a conical mass of white waxy matter projecting backwards. 
The margin of the body is fringed with a row of tubular spinnerets. 
These spinnerets are more numerous on the adult female than on the 
larva ; in both stages each one is covered with waxy matter, which 
often extends beyond the end of the spinneret. Excepting these filaments 
and the caudal tuft, but little excretory matter is to be seen ; so that al- 
though the insect resembles a mealy bug in the form of its body it differs 
greatly in appearance. The female when full grown measures 2.3 mm 
(.09 inch) in length. When the female is ready to lay her eggs she ex- 
cretes a cocoon-like covering to the body, composed of white waxen 
threads (Fig. 1). This sac is dense like felt, but easily torn ; it is open 
on the middle line of the ventral surface or very much more delicate on 
that part. It adheres to the tree quite firmly, remaining where excreted 
after the death of the insect. As the eggs are laid, the body of the 
female shrinks away, making room for them, and finally it becomes a 
very small pellet in the anterior end of the sac, the remainder of the 
space being filled with eggs. These are light yellow in color. When 
the male larva is ready to undergo his metamorphoses, he secretes a 
covering to his body resembling the sac excreted by the female, except 
that it is very much smaller, measuring only 1.33 mm (.05 inch) in length 
(Fig. 1). From this sac the adult insect emerges as a delicate fly- like 
creature, with two large wings and a pair of long waxen filaments pro- 
jecting from posterior part of the abdomen ; these filaments are very 
conspicuous, being white and longer than the body of the insect." (See 
Plate X, Fig. la.) 
" Color of body white with many irregular brown markings. 
" I have not sufficient data to ascertain the number of generations of 
this insect each year. August 27, 1 found specimens in all stages of de- 
velopment." (Gomstock.) 
The following insects also occur on the pine ( W. H. Harrington, Trans. 
Ottawa Field Nat. Club, No. 2, p. 33) : 
Order Coleoptera. 
152. Buprestis consularis Gory. 
153. Asemum atrum Mannh. 
154. Gallidium janthinum Le C. 
155. Atimia confusa Say. 
156. Cryptocephalus notatus Fabr. 
