Developmental stages

Developmental stages

The aphids are hemimetabolous, meaning that their different larval stages are active and resemble apterous adult forms. They have the same living habits, feed in the same way -and cause just the same kind of damage- as those adults.

A female aphid can give birth to large batches of larvae (see the video). Their development consists of 4 larval stages and one adult stage, with a moult between each one (see the video). The 4 larval stages are distinguished essentially by the size and degree of development of appendages, number of antennal segments, the form and size of cornicles and of the cauda. The cauda of larval stages is either very weakly differentiated from the abdomen or not at all, unlike the adult stage where it is clearly distinct. In future alates, the wing buds do not appear until the 3rd larval stage. From the birth of the adult stage the development lasts between 8 and 10 days depending on climatic conditions.
An adult lives for 10 to 120 days with an average of 50 to 60 days. It weighs about 1mg.
It can produce between 40 and 60 larvae. Aphid larval development can be summarized as follows:       

developpement larvaire

 Capitophorus horni : different morphs

larva N3
(prominent shoulders)

larva N4 with wing buds
and larva L1

alate adult (LV)
alate virginopara (LV

apterous adult and larva L1
apterous virginopara (AV)

 Takecallis arundicolens : sequence from stage N4 to alate adult stage  

larva N4 with wing buds

end of imaginal moult 

Swelling of wings

translucent alate adult

After a few hours, pigmentation appears

see the video : Acyrthosiphon pisum : moulting

Modification date : 07 February 2023 | Publication date : 23 November 2010 | Redactor : Evelyne Turpeau, Maurice Hullé, Bernard Chaubet