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INSECTS INJURIOUS TO THE ELM. ot 
from Saperda, originally insisted on by Mulsant, may be well founded, as the head is 
smaller and flatter, the clypeus being twice as large, and the labrum broad and short, 
while in Saperda vestita it is longer than broad. The mandibles are much longer and 
slenderer, and the antenne are much smaller than in Saperda vestita. 
The beetle is a rather flat-bodied, dark-brown beetle, with a rusty-red curved line 
behind the eyes, two stripes on the thorax, and with along red stripe on the outer 
edge of each wing-cover, with three long points projecting inwards; 0.50 inch in 
length. 
". THE LATERAL SAPERDA-BORER. 
Saperda lateralis Fabricius. 
Order COLEOPTERA; family CERAMBYCID 2. 
Mining the inner bark of dead trees and logs of the common elm, a grub very sim- 
ilar to the foregoing, and about the 1st of June producing a similar beetle, but difter- 
ing in wanting the transverse teeth or points arising from the marginal stripe on the 
wing-covers. (Fitch.) : 
3. THE SIX-BANDED DRYOBIUS. 
Dryobius sex-fasciatus Say. 
Order CoLEOPTERA; family CERAMBYCID®. 
A similar but larger grub than that of Saperda tridentata, but found with it, pro- 
ducing a black beetle of nearly similar form, with the edge of the thorax yellow, and 
also its scutel, with four yellow equidistant oblique bands on its wing-covers, the 
last one situated at the tip. Length 0.70 inch. (Fitch.) It also occurs on the beech 
according to C. G. Siemens. 
4, THE ELM BARK-BORER. 
Tomicus (Phloiotribus) liminaris Harris. 
Order COLEOPTERA; family SCOLYTIDAE. 
Making smali perforations like pinholes, appearing in the bark, especially of dis- 
eased elms, from which, in August and September, issues a minute cylindrical bark- 
beetle of a dark-brown color; its wing-covers with deeply impressed punctured fur- 
rows and short hairs; its thorax also punctured. Length 0.10 or less. (Harris.) 
5. THE DARK ELM BARK-BORER. 
Hylesinus opaculus Leconte. 
Living under the dry bark of the elm and ash trees, a stout pitchy-black timber 
beetle. (Riley.) 
The beetle.—Stout, opaque, - - 
when mature of a uniform pice- Zi 
ous-black color. Head punctu- 
late, not narrow in front, without 
transverse impressions in front 
of the eyes. Epistoma (Fig. 18, dD) 
truncate or very slightly and 
broadly emarginate. Labrum 
visible. Antennal club very 
large, oblong-oval, the first two 
joints shining and _ pubescent 
only at apex. Thorax wider 
than long, very densely punctate ; Fic. 18.—The dark elm bark-borer.—After Riley. 
pubescence moderately thick and short. Elytral strive (Fig. 18, d) evidently impressed 
and regularly, coarsely punctate; interstices very distinct, each with a regular row of 
small tubercles, which become more acute toward the apex and the sides. Pubescence 
very coarse and short. Tibi (Fig. 18,¢) hardly dentate. (Riley’s Rep. Ent. Dep. Ag. 
1879, p. 45. The other figures illustrate H. trifolii.) 
