92 SOME INSECTS INJUKIOUS TO TRUCK CROPS. 
to add some additional observations. During a trip at Norfolk, 
Va., in September, 1910, the writer's attention was directed to consid- 
erable injury to garden beets and chards. A majority of the insects 
had disappeared after largely defoliating the plants, but enough 
remained for an experiment to determine the direction which would 
be taken by the blister beetles when disturbed, as this has a practical 
bearing on the driving system practiced so successfully in the Middle 
West. The margined blister beetle and the black blister beetle 
(E. pennsylvanica DeG.) were present. As many as possible of the 
beetles were dislodged from the plants, and they were not dislodged 
at this time with ease, and all thus disturbed, with the exception 
of one which "played possum," walked away with the wind, as was 
expected. 
Great numbers of the black blister beetle, and small numbers of 
the sweet-potato blister beetle (E. trichrus Pall.), were observed on 
asters and related plants at Norfolk. From these high plants it was 
found an easy matter to dislodge the insects, by means of pine switches, 
into a milk pail containing about half an inch of water and a few 
drops of kerosene. With a large milk pail and several operators, 
including children, who readily take to such work, a considerable 
territory could be covered in a very short time and the blister beetles 
destroyed before they have time to injure the flowers. 
NOTES ON BEAN AND PEA WEEVILS. 
The family name Lariidae has been adopted by European system- 
atists for the Bruchidae, having been proposed originally by J. 
Schilsky in 1905. The genus Bruchus of Linnaeus, as considered by 
American coleopterists, is therefore subdivided into other genera. 
The following notes, including the European nomenclature, are 
made for the benefit of economic workers: 
Laria rufimana Boh. — The broad-bean weevil. 
Bruchus rufimanus Boh., Schoenherr, Vol. I, p. 58, 1833. 
This species, called also the European bean weevil, has recently been introduced 
at San Luis Obispo, Cal., from which locality the writer received, through the kind- 
ness of Mr. I. J. Condit, collaborator, of this Bureau, specimens reared from the seeds 
of broad bean grown there. 
Laria pisorum L. — The pea weevil. .£■ 
Bruchus pisorum L., Syst. Nat., 10th Ed., p. 356, 1758. 
B. pisi L., Syst. Nat., 12th Ed., p. 604, 1767. 
Laria lentis Froelich. — The lentil weevil. 
Bruchus lentis Froel., Der Naturforcher, pp. 57, 58, 1799. 
The lentil weevil appears to be restricted to the lentil for food. It is well distributed 
in Europe and is often brought to this country, usually dead or dying, but has not 
been introduced here to the writer's knowledge. 
