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Sternorrhyncha

Sternorrhyncha
Aphididae (aka).jpg
An aphid.
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Sternorrhyncha
Superfamilies

Aleyrodoidea
Aphidoidea
Coccoidea
Phylloxeroidea
Psylloidea

The Sternorrhyncha[1][2][3] suborder of the Hemiptera contains the aphids, whiteflies, and scale insects, groups which were traditionally included in the order Homoptera. "Sternorrhyncha" refers to the rearward position of the mouthparts relative to the head.

Distributed worldwide, all members of this group are plant-feeders (phytophagous), and many are major crop and ornamental pests.

Many exhibit modified morphology and/or life cycles, including phenomena such as flightless morphs, parthenogenesis, sexual dimorphism, and eusociality.

Phylogeny

The phylogeny of the Sternorrhyncha, inferred from analysis of small subunit (18S) ribosomal RNA, is shown in the cladogram.[4]


Sternorrhyncha

Psylloidea (jumping plant lice, etc) Psylla alni male.jpg

Aleyrodoidea (whiteflies) Neomaskellia bergii from CSIRO.jpg

Coccoidea (scale insects) Scale insect.jpg

Aphidomorpha

Phylloxeroidea (phylloxera bugs) Daktulosphaira vitifoliae from CSIRO.jpg

Aphididae (aphids) Aphid-sap2 (cropped).jpg

Groups

Well-known groups in the Sternorrhyncha include:

References

  1. ^ "ITIS standard report - Sternorrhyncha". Integrated Taxonomic Information System. Retrieved 27 July 2014.
  2. ^ Grimaldi & Engel (2005) Evolution of the Insects 289-303.
  3. ^ Paraneoptera Species File (Version 5.0/5.0)
  4. ^ "Phylogeny of Insects". What-When-How. Retrieved 21 February 2018.

External links