Biology Reference
In-Depth Information
260
261
260
Iris flea beetles (
Aphthona nonstriata
) damaging leaf
of
Iris
.
261
Willow flea beetle (
Crepidodera aurata
).
262
263
262
Poplar flea beetle (
Crepidodera aurea
).
263
Poplar flea beetle (
Crepidodera aurea
) damage to leaf of
Populus
.
Aphthona nonstriata
(Goeze) (
260
)
syn.
A. caerulea
(Fourcroy)
Iris flea beetle
Locally common on yellow flag (
Iris pseudacorus
), and
sometimes also associated with cultivated irises
growing in parks and gardens. The beetles, which occur
in the spring and summer, feed on the foliage, forming
long whitish markings. Individuals (2.5-3.0 mm long)
are mainly blue, with finely punctured elytra; the legs
are light brown, with distinctive black hind femora.
overwinter in the ground, occur on host plants from
May to September, grazing the foliage and producing
small but noticeable holes in the expanded leaves; in
spring, the beetles will also damage unopened buds.
Individuals are 2.5-3.2 mm long and distinguished by
the reddish thorax and greenish-black elytra, black or
partly black antennae and mainly pale legs.
Crepidodera aurea
(Fourcroy) (
262-263
)
syn.
Chalcoides aurea
(Fourcroy)
Poplar flea beetle
This locally common flea beetle is associated mainly
with various kinds of
Populus
, including aspen
(
P. tremula
), and causes minor damage to the foliage; it
also occurs on willow (
Salix
). Adults occur from May to
early October. They are similar to those of the previous
species but slightly larger (2.7-3.5 mm long), with
mainly pale antennae, and the thorax and elytra metallic
green with a reddish sheen.
Crepidodera aurata
(Marsham) (
261
)
syn.
Chalcoides aurata
(Marsham)
Willow flea beetle
A widely distributed and locally common species on
willow (
Salix
), affecting both mature trees and nursery
stock. Infestations are also increasingly reported on
poplar (
Populus
), damage occurring in nurseries, on
windbreaks and on isolated trees. Adults, which
Search WWH ::
Custom Search