70 INSECTS INJURIOUS TO FOREST AND SHADE TREES. 
3. THE BELTED CHION. 
Chion cinctus (Drury). 
Order COLEOPTERA; family CERAMBYCID. 
A worm like the preceding and with similar habits, forming long galleriesin the trunk 
in the direction of the fibers of the wood, producing a more flattened 
long-horned beetle from two-thirds to a little over an inch long, of 
a hazel-brown color, with a short dull straw-yellow band placed 
obliquely forward of the middle of each wing-cover, and with a 
small sharp spine on each side of the prothorax, and two slender 
ones on the tips of each wing-cover; the antenne of the males 
more than twice the length of the body. (Harris. ) 
4. THE DISCOIDAL SAPERDA. 
Fic, rae belted Saperda discoidea (Fabricius). 
Order COLEOPTERA; family CERAMBYCID. 
A similar but much smaller worm than the foregoing, changing to a cylindrical 
long-horned beetle of a black or blackish-brown color, clothed with ash-gray pubes- 
cence which is less dense above and commonly forms three gray stripes upon the thorax, 
and a band or crescent upon the middle of the wing-covers, its legs yellow or reddish. 
Length 0.40 to 0.60 inch. (Fitch.) 
5. THE COMMON HICKORY BORER. 
Cyllene picta Drury. 
Boring in the trunk of the hickory, a whitish worm, one-half an inch long, the 
beetle appearing in June. (See Locust-tree borer.) 
We have received this insect in all its stages from Mr. H. Gillman, of 
Detroit, who several years ago found several of them in a hickory log 
March 10th. From these living specimens the following description 
was drawn up: 
Larva.—Body thick ; mouth-parts black; head reddish behind the antenne. Pro- 
thoracic segment (first behind the head) large and broad, being one-half as long as 
broad; flat and broad above, the upper surface being lower than that of the suc- 
ceeding segment; the anterior edge thickened, being slightly corneous; a mesial 
deeply impressed line, especially on the hinder two-thirds, where it becomes a 
broad, deep angular furrow, dividing the tergum into two quadrant-shaped 
halves; the outer edge of the segment rises above the flattened tergal portion, 
which is sparsely covered with hairs; the latter thicker along the sides of the 
body. The body contracts in width behind the 4th 
abdominal segment; the upper side of each of the 
first six abdominal segments (corresponding to those 
segments in the beetle) is raised into blister-like 
| swellings, especially on the 5th and 6th segments, 
which are much narrower than the four preceding 
segments. These dorsal swellings are smooth and 
¥ie, 30.—Common hickory borer; male, free from fine hairs. Abdominal segments 7-9 con- 
ee ele a, larva; b, pupa.—From vex above, not swollen, and the abdomen is narrow- 
‘ est between the 5th and 6th segments. A pair of 
large spiracles on the mesothoracic segment, and a pair on each of the first eight 
abdominal segments. . 
Antenne 3-jointed; the two basal joints being of the same length; the basal one 
being one-third stouter than the 2d; the 3d joint filiform, and one-half as long as the 
