Alary-polymorphism

Guides

• Archipsocidae

  Ancient Barklice

  Archipsocidae is a family of barklice in the order Psocodea, containing approximately 80 species across five genera. Members are distinguished by reduced wing venation and small body size (1.2–1.8 mm). The family exhibits alary polymorphism, where individuals within a population may have different wing morphologies. Some species are known to be viviparous, an uncommon reproductive mode among barklice.

  barklicepsocopterapsocodeapsocomorphaviviparousalary-polymorphismreduced-wing-venation

• Chaetosiphon

  strawberry aphid

  Chaetosiphon is a genus of aphids in the family Aphididae, comprising species specialized on Rosaceae hosts, particularly strawberries (Fragaria) and roses (Rosa). The genus includes economically significant agricultural pests, most notably Chaetosiphon fragaefolii, which vectors multiple strawberry viruses. Species in this genus exhibit complex life cycles with both holocyclic (sexual) and anholocyclic (parthenogenetic) populations, and show morphological variation in karyotype and chaetotaxy that has complicated taxonomic classification.

  aphidstrawberry-pestvirus-vectoragricultural-pestRosaceae-specialistinvasive-speciesparthenogenesisalary-polymorphismbiological-control