Biology Reference
In-Depth Information
1014
Phyllocolpa leucapsis
(Tischbein) (
1014-1015
)
A generally common but minor pest of common sallow
(
Salix atrocinerea
), eared willow (
S. aurita
), grey
willow (
S. cinerea
) and pussy willow (
S. caprea
).
Present throughout central and northern Europe.
DESCRIPTION
Adult:
3.5-5.0 mm long; mainly black, with a short,
broad abdomen; legs brownish, marked with white or
yellow.
Larva:
up to 10 mm long; head reddish brown;
body bluish green to greyish, with a pair of small, black
cerci; young larva mainly yellowish.
1014
Larva of
Phyllocolpa leucapsis
.
LIFE HISTORY
Adults occur from May onwards, and deposit eggs in
the leaves of various broad-leaved willows. The larvae
develop during June and July, each within a folded leaf-
edge which forms a flattened pouch on the lower
surface; a second brood appears later in the season.
Fully grown individuals construct brown cocoons in the
soil and then pupate, those of the second generation
overwintering within their cocoons and producing
adults in the spring.
1015
DAMAGE
Heavily infested bushes are disfigured but growth is not
impaired.
Phyllocolpa leucosticta
(Hartig) (
1016
)
syn.
P. sharpi
(Cameron)
Infestations of this species occur widely on common
sallow (
Salix atrocinerea
), grey willow (
S. cinerea
) and
other broad-leaved willows, the larvae feeding within
elongate folds along the leaf edges. The young larva is
whitish and later becomes greenish white with a
blackish to brownish head. Larvae are slightly larger
than those of the previous species; adults (4.5-5.5 mm
long) are distinguished by their entirely reddish-yellow
hind femora.
1015
Larval habitation of
Phyllocolpa leucapsis
on leaf of
Salix
.
1016
Phymatocera aterrima
(Klug) (
1017-1019
)
syn.
P. robinsoni
(Curtis)
Solomon's seal sawfly
A destructive pest of Solomon's seals (
Polygonatum
),
especially
P. multiflorum
. Widely distributed in central
and southern Europe. In Britain, first reported in
London in 1846 and now common throughout much of
England and Wales.
1016
Larval habitation of
Phyllocolpa leucosticta
on leaf of
Salix
.
DESCRIPTION
Adult:
8-9 mm long; stout-bodied, black and shiny,
with moderately long antennae and smoky, iridescent
wings.
Larva:
up to 20 mm long; head black, but
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