STATE AGRICULTURAL SOCIETY. 
517 
HAIRY PLEA-BEETLE. ON TOMATO, PETDNIA AND TOTATO LEAVES. 
transvovsc veinlots in the disk. The poisers are pale yellowish. The six legs aro black 
and bristly, the feot five-jointed, ending in two little claws, and two large pale leathery 
lobes. 
The female is of a uniform ash gray color, excepting the silvery white face and pale 
sides of tbo fore-body. The oyes are widely apart, with a broad black stripe between 
them, which is shaded into ohestnut color in front. The hind body is larger than in the 
male and conical towards its apex. Tho wings have a tinge of yellowish at their bases. 
The species moasures 0.22 in length, and 0.45 in width across tho extended wings. 
This species is so closely akiu to the cabbage and the onion 
maggots, that the same remedies will be efficacious for it, which 
are mentioned in the accompanying account of those insects. 
Hairy flea-beetle, Baltica (Macrocnema) pubescens, Illiger. (Coleoptera. 
Clnysomelidre.) 
On the tomato, potato, petunia, Ac., throughout tho season, gnawing small holes 
through the leaves; a small black flca-boetlo olothed with fino short whitish hairs, and 
having palo dull yellowish legs and antenna). 
In addition to the Striped flea-beetle, of which the full history 
is presented in the foregoing pages, several other species of 
these minute flea-beetles occur in our gardens, and would be more 
noticed if the species mentioned were not so extremely numerous 
as to quite eclipse them by attracting to itsplf the principal atten¬ 
tion. Next to it in numbers is one similar to it in form, but 
smaller in size and not at all glossy, of a black color throughout, 
except the legs and antennae, which arc pale dull yellowish. 
As the Striped flea-beetle infests the cruciferous group of plants, 
this occurs mostly upon vegetation pertaining to the natural order 
Solanctcece. It is to be found in abundance upon the tomato from 
May till September, perforating the leaves with small holes. It 
infests also the petunia, being according to my observation the 
worst insect enemy which we here have upon this much esteemed 
flowering plant. Young seedling plants are liable to be seriously 
injured by it. On tirst becoming aware of their presence upon a 
small cluster of young petunias only an inch high, I found eighty 
oi these insects, one season, in company with a few individuals of 
the striped species. It sometimes occurs quite common upon hop 
leaves, eating numerous small holes therein, as is its habit upon 
whatever plant it stations itself. I have observed it noon the 
bitter-sweet in company with the tortoise beetle (Cassula clavata,) 
the latter eating larger holes in the same leaves. 
But the leaves of the potato appear to be its favorite food. From 
about the middle of June till the end of the season, it almost every 
