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INJURIOUS AND BENEFICIAL INSECTS. 543 
maggots of flies are leaf-miners. Dr. Harris has given in his 
“ Treatise” an account of the larva of Hispa which mines the leaf 
of the apple tree, cating the pulpy substance between the upper 
and under surface of the leaf. The two insects of which we now 
treat belong to the family of Buprestids, several species of which 
do much injury to our fruit and shade trees in the grub state. 
They are footless grubs and recognized by the broad, rounded, 
flattened segment just behind and partially enclosing Fig. 146. 
the head. The young of the following insects depart í 
somewhat from this typical form owing to their pecu- 
liar leaf-mining habits. The first of these is the 
young of the Brachys æruginosa which has been found 
by V. T. Chambers, Esq., of Covington, Ky., mining 
the leaves of the beech tree, and I am indebted je him 
for a specimen of the larva here figured (Fig. 146). 
I may remark here that a closely allied beetle (B. 
terminans), I have often found resting in the leaves of 
the oak and beech. ‘The beetles of this genus are 
flattened, angular ovate, and less than a quarter of an 
. . : Larva of 
inch in length, and the scutellum is small, as Leconte Brachys. 
observes, while the shanks (tibiæ) are linear. In the succeeding 
genus, Metonius, Leconte says that the body is triangular, while 
the scutellum is large, and the shanks are dilated. 
3, +} 
rva. The body of the larvais rather oe wit g very deeply cut, be- 
tig Mattened, se produced laterali tion, giving a serrate out- 
line he teeth being o ard rounded: The segment next behind the head 
‘oie ear 
sii: in och to the end. The terminal eae is about hant as wide a 
in its widest portion, and is somewhat triangular, with the llel ache the tip 
obtusely pointed. The prothoracic segment or the one next the head is br r than 
ng, and has a fleshy projection on each side at pu base of the head. On the upper 
side of this segment is a large, square, slightl my area. The head is anteriorly 
e rti 
> 
about as long as broad, much flattened, subtriangular. The antenn are very minute, 
slender, three-jointed, with the joints nearly equal in rg th. The ger and palpi are 
e that a description will be of n —_ ical use here. The body is finely sha- 
Sreened, with a few fine scattered hairs. It is whiti can a with a slight greenish Panto 
and a quarter (-25) of an inch Rh and less bak a tenth (07) of an inch broad. It 
Sent to me alive in September, 
The Tick Trefoil Leaf-miner.—This insect (Metonius levigatus) 
which is not uncommon in this state, has been found by Mr. V.T. 
Chambers of Covington, Ky., mining the leaves of the tick trefoil 
(Desmodium) during the early part of September. The larva is 
from -15 to -20 inch in length, and mines a broad, irregular patch, 
