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Scarabaeoidea of Southern South America Links
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Keys and generic profile |
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Scarab Guide Links
(goes to the University of Nebraska
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Classification |
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Ataenius gracilis (Melsheimer, 1846) |
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Ataenius gracilis (Melsheimer)
Photo by Paul Skelley. |
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Ataenius gracilis distributional records
from southern South America. |
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Original combination: Oxyomus gracilis Melsheimer, 1846: 137. |
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Type locality: “Pennsylvania.” |
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Specimens examined: 1 specimen was examined from MZLU. |
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Distribution: CHILE (1). X Región de Los Lagos (1): Estero Pichi Pilluca.
Outside the study region this species is known from the Nearctic Realm, the Azores, and Japan (Stebnicka
2006). We also examined specimens in the HAHC from Mexico, Guatemala, El Salvador, Honduras, Costa
Rica, Panama, Cuba, Jamaica, Dominica, Virgin Islands, Trinidad, Venezuela, Colombia, Ecuador, Brazil,
Bolivia. |
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Temporal data: October (1). |
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Diagnosis: Length 3–4 mm. Body black, elongate and parallel-sided, flattened and notably
dulled. Head with longitudinally elongated punctures. Meso- and metafemur with complete posterior
marginal lines. |
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Remarks: Ataenius gracilis is widespread throughout the New World, and is introduced to several other
countries. It may be a detritivore, but has been collected in cow dung. Adults are frequently collected at
lights, thus it is one of the most commonly collected species. Gutiérrez (1947) reported this species from V
Región de Valparaíso, Región Metropolitana, and X Región de Los Lagos, Chile. We confirmed that these
records were based on misidentifications using specimens from the Gutiérrez collection (UCCC). The specimens
Gutiérrez identified as A. gracilis are actually A. chilensis. The one specimen we did examine is the
same specimen reported by Landin (1955) from Chile. Some doubt remains as to whether this species is actually
established in the study region. |
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References:
Gutiérrez, R. (1947) Escarabajos comunes a Chile y la Argentina (Col. Scarabaeidae). Revista de la Sociedad Entomológica Argentina,
13, 309–314.
Landin, B.-O. (1955) Reports of the Lund University Chile Expeditions 1948–49. 22. Coleoptera; Lamellicornia. Lunds Universitets
Arsskrift N. F., Avd. 2. Bd. 51. Nr. 14, 1–14.
Stebnicka, Z.T. (2006) Tribe Eupariini, pp. 143–144. In: I. Löbl and A. Smetana (eds.), Catalogue of Palaearctic Coleoptera, Volume
3. Scarabaeoidea – Scirtoidea – Dascilloidea – Buprestoidea – Byrrhoidea. Apollo Books, Stenstrup. 690 pp. |
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Excerpt from:
Smith, A. B. T. and P. E. Skelley. 2007. A review of the Aphodiinae (Coleoptera: Scarabaeidae) of southern South America. Zootaxa 1458: 1-80. |
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