INSECTS AFFECTING FOREST TKEES. 509 



feeds upon this vine whenever convenient, and its presence in such large numbers 

 upon hard pine is very good evidence that it eats the foliage of this tree to some 

 extent. 



PINE CHRYSOMELA. 



G/j'/^tosfc/is /^Hbcscciis Fabr. 



A thick, brilliant, brassy, cylindrical beetle, tinged with copper color, may be 

 found feeding on the leaves of hard pine in May and June, as stated by Dr. Fitch. 



This insect is a rather stout form, and ranges from a little over 3-4 to about '/j of 

 an inch in length, plate 12, figure 7. It was met with rather commonly by the writer 

 in June, 1901, when it was feeding at the base of hard pine needles at Karner. 



IMPERIAL MOTH. 



Basiloiia imperial is Drury. 



The larva or caterpillar of this magnificent moth attains a length of three to 

 four inches ai'.d may be recognized by its pale orange colored head and legs and the 

 six thorny yellow knobs behind the head. The caterpillar may be found on the leaves 

 of the white pine late in August and during September. It is represented on plate 

 13, figure I. The moth is a rare species and the larva seldom causes material injury. 

 It has been recorded as living upon 52 food plants, representing 15 natural orders. 

 The white pine is its favorite in the north and a number of species of oak in the 

 south. It is stated that in recent j'ears this insect has displayed a decided prefer- 

 ence for red maples in the vicinity of Germantown, Pa. 



PINE LEAF MINER. 



Gclccliia piiiifoliclla Chamb. 



The caterpillar of this pretty little moth lives entire!)' within the pine needles 

 and usually enters them about midway of their length, devouring the softer inner, 

 portion toward the tip, and then reversing its position and working toward the base. 

 Its presence is indicated by the brown tips of the needles, plate 12, figure 5. This 

 little insect was met with by the writer in considerable numbers on hard pines at 

 K.irner in 1901, and its operations were also observed that same )'ear at Round Lake. 

 Prof. Comstock states that there are certainly two, probably three, and possibly more 

 generations yearly. The writer has bred this moth the latter part of June in con- 

 siderable numbers. The egg has been described by Prof. Comstock as of a variable 



