INSECTS INJURIOUS TO THE HICKORY. 73 
9, Stenosphenus notatus (Olivier). 
Order COLEOPTERA; family CERAMBYCIDZ. 
Boring in the hickory tree, a specimen having been cut froma hickory tree in March. 
(C. V. Riley, Amer. Ent., vol. iii, p. 239.) 
10. Neoclytus erythrocephalus (Fabricius). 
Order COLEOPTERA; family CERAMBYCID. 
Boring in hickory wood ; nothing farther known regarding its habits. 
This beetle has been raised from hickory wood by Dr. G. H. Horn. 
(Proceedings of the Entomological Society of Philadelphia, vol. 1, p. 
29.) It has also been found boring in a dead elm by Mr. H. G. Hubbard, 
of Detroit, Mich., and a gravid female was found near the root of a rose- 
vush in Washington, D.C. (Riley). 
11. Dorcaschema nigrum (Say). 
Order COLEOPTERA; family CERAMBYCIDZ. 
Bores in the hickory, according to Dr. F. Hodge, Buffalo, N. Y. 
12. THE HICKORY BARK-BORER. 
Scolytus 4-spinosus (Say.) 
Order COLEOPTERA; family SCOLYTID. 
Undermining the bark and making long slender tracks radiating from a primary 
larger vertical chamber; a white footless grub, becoming a small cylindrical wéevil- 
like beetle. 
This very destructive bark- 
borer affects the bitter-nut, 
shell-bark, pig-nut hickory and 
probably the pecan (Carya 
oliveformis). According to 
Riley the beetle issues the 
latter part of June and early 
part of July. “Both sexes 
bore into the tree—the male , 
for food, and the female mostly ( 
for the purpose of laying her 
eggs. In thus entering the j Mf I 
tree they bore slantingly and *# faa |aam 
upward, and do not confine | 
themselves to the trunk, but 
penetrate the small branches 
and even the twigs. The en- 
trance to the twig is usually 
made at the axil of a bud or 
leaf, and the channel often < ; : 
causes the leaf to wither and, 7% *4—Hickgr bark-borer. 1, 2 ite ley bee 
drop or the twig to die or break off. 
‘The female, in depositing, confines herself to the trunk or larger 
limbs, placing her eggs each side of a vertical chamber, as described by 
