
Bactericera larva © Sébastien Carbonnelle

underside
gall
The number of Psylloidea living, mostly monophagously, on Salix is considerable. Probably the effect of the infestation will not differ much from one species to the other: small hypophyllous pits, each one housing a flattened larva, and, under more heavy infestation, curling, especially of the younger leaves.
In Triozidae larvae the wing rudiment anteriorly has a lobe that extends as far as the front of the head; in Psyllidae this lobe is missing.
The adults of many species, on warm summer days, are driften passively on air currents. This brings them, sometimes tens of kilometers away, in mountainous regions where they enter hibernation in conifers.
eggs
Generally the eggs are honey coloured and lie uncovered. Almost invariably the hae a filament that is inserted in the tissue of the host plant. This may function to anchor the egg, but also also to draw water from the host tissue. This explains the fact that eggs perish when the host suffers drought stress.
Cacopsylla spec.: eggs on Pyrus calleryana, Hungary, Budapest © László Érsek
references
Burckhardt, Ouvrard & Percy (2021a), Čermák & Lauterer (2008a), Taylor (1992a).
- Aphalaridae
- Calophyidae
- Homotomidae
- Liviidae
- Psyllidae
- Triozidae
- Bactericera
- Bactericera acutipennis
- Bactericera albiventris
- Bactericera bohemica
- Bactericera bucegica
- Bactericera calcarata
- Bactericera crithmi
- Bactericera curvatinervis
- Bactericera femoralis
- Bactericera harrisoni
- Bactericera kratochvili
- Bactericera lyrata
- Bactericera maura
- Bactericera modesta
- Bactericera nigricornis
- Bactericera parastriola
- Bactericera perrisii
- Bactericera reuteri
- Bactericera salicivora
- Bactericera silvarnis
- Bactericera spec.
- Bactericera striola
- Bactericera substriola
- Bactericera tremblayi
- Bactericera trigonica
- Bactericera versicolor
- Eryngiophaga
- Heterotrioza
- Phylloplecta
- Trichochermes
- Trioza
- Trioza abdominalis
- Trioza achilleae
- Trioza agrophila
- Trioza alacris
- Trioza anthrisci
- Trioza apicalis
- Trioza apulica
- Trioza binotata
- Trioza caesaris
- Trioza carpathica
- Trioza centranthi
- Trioza cerastii
- Trioza chrysanthemi
- Trioza cirsii
- Trioza cocquempoti
- Trioza dispar
- Trioza drosopouli
- Trioza erytreae
- Trioza fernandesi
- Trioza flavipennis
- Trioza flixiana
- Trioza foersteri
- Trioza galii
- Trioza ilicina
- Trioza kiefferi
- Trioza laserpitii
- Trioza laurisilvae
- Trioza lautereriella
- Trioza marginepunctata
- Trioza mesembrina
- Trioza munda
- Trioza neglecta
- Trioza pittospori
- Trioza portulacoides
- Trioza proxima
- Trioza remaudierei
- Trioza remota
- Trioza rhamni
- Trioza rotundata
- Trioza rumicis
- Trioza saxifragae
- Trioza schrankii
- Trioza scottii
- Trioza senecionis
- Trioza soniae
- Trioza tatrensis
- Trioza thomasii
- Trioza tripteridis
- Trioza urticae
- Trioza velutina
- Trioza viridula
- Trioza vitreoradiata
- Bactericera