Ataenius strigatus
(Say, 1823)
Ataenius strigatus is a small aphodiine dung beetle in the Scarabaeidae. The was originally described by Thomas Say in 1823 as Aphodius strigatus. It occurs across much of North America and extends into Central America. Like other members of the , it is associated with decomposing organic matter.
Pronunciation
How to pronounce Ataenius strigatus: /əˈtiːniəs strɪˈɡeɪtəs/
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Identification
Distinguished from other Ataenius by the striated or grooved implied by the species name. Separation from requires examination of subtle morphological features including genitalia and tarsal structures. Identification to species level typically requires knowledge of Aphodiinae .
Appearance
Small scarab beetle, typical of the Ataenius. The specific epithet 'strigatus' refers to striations or fine grooves, likely on the . Body form is compact and oval, consistent with aphodiine dung beetles. Exact coloration and size measurements are not well documented in available sources.
Habitat
Associated with decomposing organic matter, including and decaying plant material. Specific microhabitat preferences are not well documented.
Distribution
Nearctic region: Canada (New Brunswick, Ontario, Quebec), United States (Florida, Indiana, Iowa, Kansas, Maryland, Michigan, Mississippi, Nebraska, New Jersey, Ohio, South Carolina, South Dakota, Tennessee, Texas, Virginia, Wisconsin). Neotropical region: Mexico (Distrito Federal, Durango, Guerrero, Nuevo León, Sinaloa, Tabasco, Veracruz). Present in Middle America and North America broadly.
Diet
Presumed to feed on decomposing organic matter including , based on -level traits of Aphodiinae, though specific dietary records for this are not documented.
Ecological Role
Contributes to nutrient cycling through decomposition of organic matter. As a member of Aphodiinae, likely plays a role in breakdown and soil nutrient redistribution, though specific ecological studies on this are not available.
Human Relevance
No documented direct economic or medical significance. Occasional specimens may be collected in ecological surveys or biodiversity studies.
Similar Taxa
- Other Ataenius speciesCongeneric share similar small size, compact body form, and association with decomposing matter. Differentiation requires detailed morphological examination.
- Other Aphodiinae generaSmall aphodiine dung beetles in related (e.g., Aphodius, Euparius) share general habitus and ecological associations. Generic assignment based on tarsal formula and other structural characters.
More Details
Taxonomic History
Originally described as Aphodius strigatus by Thomas Say in 1823, later transferred to Ataenius. The basionym Aphodius strigatus is preserved in taxonomic databases.
Observation Frequency
Relatively few documented observations (61 records on iNaturalist as of source date), suggesting either genuine rarity, undercollection, or identification challenges.