PAPILIO. 



Prgan of tlje few Jork pntomological plub. 



Vol.1.] February 19, i8Si. [No. 2. 



A NEW INSECT INJURIOUS TO THE HICKORY. 



By a. R. Grote. 



In my paper on PyralidiE, published by the United States 

 Geological Survey, I called attention to the injuries caused by 

 several species of the PJiycidae to our forest trees. Our pines are 

 attacked by species of the genus Pinipestis ; the history of P. 

 Zivinicrinani, which attacks also imported pines and should be 

 noticed by Nurserymen, has been somewhat fully worked out. 

 The following species are found to attack our hickories {^Carya). 



ACROBASIS Caryae, n. s. 



$ The maxillary palpi untufted, the antennae ciliate, with 

 a sub-basal flexure and a scale-tooth on the thickly scaled basal 

 joint. Shining grayish fuscous; the head and thorax concolor- 

 ous. Smaller than Angusella, without the carneous shadings and 

 reddish thorax and head. Outer line of primaries pale, narrow 

 and faint. Inner line a ridge of raised darker scales narrowly 

 edged outwardly by a pale, flesh-colored shade. The wing is 

 paler, more grayish, at base. The color shifts with the light. 

 Discal points faint. In ornamentation this species is inconspic- 

 uous. Hind wings as usual blackish ; fringes interlined, con- 

 colorous. Length of primary wing, 9 mil. Reared by Mr. Co- 

 quillett from larvae on Carya Porcina ; the larvae has been found 

 ■** boring into the twigs." 



Mr. Coquillett describes the larva and chrysalis as follows : 



AcROBASis Caryae, Grote. 



Body subcylindrical, smooth, pale greenish ash ; a pale brown 

 subdorsal dot on each side of segment 2 ; a wavy-fold below the 

 spiracles ; the latter are encircled with a dark brown ring, and 

 there is a brown piliferous dot above each ; a few whitish hairs 

 on each side of the body; top of segment i polished, yellowish 

 green ; head narrower than segment i, heart shaped, dark brown ; 

 venter pale green, unmarked ; 16 legs ; length, 14 mm. Found 



