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The different types of cookies used on this site

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These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

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About the AT Internet audience measurement tool :

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Good to know:

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When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

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For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at cil-dpo@inrae.fr or by post at :

INRAE

24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Identification of aphids associated with Betulaceae

A key based on visual identification is provided to help you identify frequent aphid species.

The link on the species name gives access to the identification file

Common alder (Alnus glutinosa)

Pterocallis alni, P. maculatus

light yellow to yellowish green with antennae ringed, cornicles short and dark, anal wing vein dark in alate

Italian alder (Alnus cordata)

Cryturaphis grassii

aphid nearly round and flat, yellow streaked with brown, frontal tubercles highly developed, abdomen of alate with dorsal patch more or less developed

Crypturaphis grassii : adulte aptère sur Alnus cordata

Silver birch (Betula pendula) and downy birch (Betula pubescens)

Betulaphis quadrituberculata whitish yellow to greenish yellow, antennae short, capitate hairs on abdomen of larvae and nymphs, cornicles short and light
Calaphis flava pale green to yellowish, antennae same length as body, capitate hairs present in larvae and nymphs, cornicles short and light-coloured, wing veins distinct in alate
Callipterinella calliptera green streaked with stripes, dark to black, antennae dark at tip, shorter than body, wing veins strongly marked in alate
Callipterinella minutissima greenish yellow, antennae short, cornicles short, alate greenish with large lateral tubercles and wing veins dark
Callipterinella tuberculata greenish with dark spots on abdomen, antennae shorter than body, wing veins distinct in alate
Euceraphis punctipennis large and elongate, green, antennes same size as body, cornicles short, cauda knobbed, alate slightly waxy with wings elongate

Common hornbeam (Carpinus betulus)

Myzocallis carpini

yellowish to whitish, very similar to Myzocallis coryli the hazel aphid, the morphological difference tibeing the rostrum length, however each of these two species is specific to its plant host

Hazel (Corylus avellana)

Corylobium avellanae

greeny yellow, sometimes marbled with red, antennae and cornicles long, abdomen with capitate hairs, alate with spots on abdomen

Myzocallis coryli

yellowish to whitish, abdomen with capitate hairs, cornicles short and light-coloured, cauda knobbed, in alate small black spot on basal part of pterostigma