Agriculture Reference
In-Depth Information
Fig. 35 Wing venation of a whitefly - family
Aleyrodidae.
Fig. 37
Antennae of aphids: (a) family Lachnidae;
(b) Chaitophoridae; (c) Pemphigidae.
root aphid),
Tuberolachnus salignus
(large wil-
low aphid).
17. Family CHAITOPHORIDAE
Aphids with the body and legs bearing long
hairs; terminal process of antennae very long
(Fig.
37b);
siphunculi pore-like or stumpy; cauda
knob-like or rounded; Rs vein of forewing
present.
EXAMPLES:
Chaitophorus beuthani
(osier leaf
aphid),
Periphyllus californiensis
(Californian
maple aphid).
Fig. 36 General structure of an apterous aphid -
superfamily Aphidoidea.
18. Family DREPANOSIPHIDAE
Aphids with the terminal process of the anten-
nae of variable length; siphunculi usually stumpy
or broadly conical but sometimes pore-like or
long and swollen; cauda knob-like or rounded;
subanal plate prominent, often divided into two
lobes
(Fig.
38); Rs vein of forewing present.
EXAMPLES:
Eucallipterus
segmented, each with a pair of claws; wings,
when present, membranous.
16. Family LACHNIDAE
tiliae
(lime
leaf
Aphids with the terminal process of the
antennae very short (Fig. 37a); siphunculi us-
ually short, very hairy cones; cauda broadly
rounded; Rs vein of forewing present (see
Fig. 39), Cu
1
and Cu
2
veins usually noticeably
divergent.
EXAMPLES:
Cinara pilicornis
(brown spruce
aphid),
aphid),
Phyllaphis fagi
(beech aphid).
19. Family APHIDIDAE (aphids)
(p. 104
et seq.)
Aphids with the terminal process of the anten-
nae of variable length; compound eyes multi-
Maculolachnus
submacula
(rose
