Sitobion avenae
species of insect
Sitobion avenae, the English grain aphid, is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. It lives on grasses, sedge and rushes and can be a significant pest of cereals.
This species act as a host of the entomophthoralean fungi.
Parthenogenesis
Some genotypes of S avenae are obligate parthenogens and some are cyclical parthenogens. Cyclically parthenogenetic lines can reproduce parthenogenetically in the spring and summer. Production of sexual females and males is induced during autumn by decreasing day length and decreasing temperature. Mating followed by egg laying occurs on grasses (Poaceae) during late November. Eggs can overwinter with delayed development (diapause), and then, after being exposed to cold for two or three months, can hatch spontaneously and initiate the next cycle of clonal reproduction.
Genomics
A chromosome-level genome assembly of the English grain aphid (Sitobion avenae) was published in 2026.
The public source identifies “Sitobion avenae” as species of insect. This brief keeps that definition visible, then builds a research path around Sitobion, avenae and species.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Apr 19, 2026. The linked authority identifier is Q3838011. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2026.
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This entry incorporates text from “Sitobion avenae” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.