Morphology

Morphology and identification criteria for aphids

The aphids are insects whose body length, between 2 and 5 millimetres, spans three well differentiated regions: the head, thorax and abdomen.

The head possesses a pair of antennae, compound eyes and the rostrum, the feeding organ.

The thorax carries three pairs of legs and, in the alate forms, two pairs of wings.

The abdomen, showing light- to dark coloration and with an elongate to rounded shape, is characterized by the presence or absence of a pair of cornicles and a cauda.

Aptère

Morphologie de l'aptère
Morphologie de l'ailé

Modification date : 15 May 2024 | Publication date : 02 March 2010 | Redactor : Evelyne Turpeau, Maurice Hullé, Bernard Chaubet