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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 picinus Harold, 1868 |
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Ataenius picinus Harold
Photo by Paul Skelley. |
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Ataenius picinus distributional records
from southern South America. |
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Original combination: Ataenius picinus Harold, 1868a: 281. |
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Type locality: “Chili.” |
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Synonyms: Ataenius duplopunctatus Lea, 1923: 6; type locality: “Western Australia: Parkerville.”
Ataenius salutator Fall, 1930: 99; type locality: “Pensacola,
.....Florida.”
Ataenius queirosii Paulian, 1934: 219; type locality: “Vaté, .
.....Nouvelles-Hébrides.”
Ataenius darlingtoni Hinton, 1937: 179; type locality: “Porto Rico: .....Caratanga, Lagoon.”
Ataenius boucomontii Paulian, 1937: 41; type locality: “Australie: .....Sydney.”
Ataenius alegrus Balthasar, 1947: 50; type locality: “Brasilia, .
....Porto Alegro.”
Saprosites rugosus Richards, 1959: 41; type locality: “Mt. Roskill, .....Auckland” (New Zealand).
Ataenius paracognatus Balthasar, 1961: 123; type locality: ..
...“Bolivien, El Beni.” |
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Type specimens: Ataenius picinus lectotype at MNHN examined. Labeled: 1) “Chili / Ataenius / picinus
/ mihi” (handwritten), “Ex-Musaeo E.Harold” (typeface), “MUSÉUM PARIS / 1962 / COLL R. OBERTHUR”
(typeface), “LECTOTYPE / Ataenius / picinus Harold / Cartwright ‘70” (red typeface and black
handwritten), “Southern Neotropical Scarabs / database # AS2598816 / Ataenius picinus Harold, 1868 / DET:
A.B.T.SMITH 2005” (typeface). Lectotype designated by Cartwright (1973). |
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Specimens examined: 26 specimens were examined from ABTS, FMNH, MNHN, MNNC, UCCC,
UNSM. |
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Distribution: CHILE (26). VII Región del Maule (25): Linares, Talca (vicinity), Talca (20 km S); No
Data (1).
Stebnicka (2004) also recorded this species from IX Región de la Araucanía and X Región de Los Lagos.
Outside the study region, this species has been recorded from Oceania; Australia; New Zealand; Nearctic; Central America; West Indies; Bolivia; Brazil; Paraguay; Uruguay; Argentina (Corrientes, Entre Ríos, Formosa,
Jujuy, Misiones, Santiago de Estero) (Stebnicka 2004). We also examined specimens in the HAHC
from Ecuador; Peru; Argentina (Buenos Aires, Chaco, Córdoba, La Rioja, Salta, Tucumán). |
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Temporal data: January (3), November (5), December (17). |
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Diagnosis: Length 5–6 mm. It is most easily recognized by having only 4 spinules comprising the apical
metatibial fringe, in lacking a set of punctures on the disc of the metasternum, and in having
the ninth elytral interval being finely, densely punctured, where the punctures appear randomly
spaced. |
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Remarks: Stebnicka (2004) included A. picinus in the Ataenius strigicaudus group. Ataenius picinus is a
variable and widespread species, partially explaining its numerous synonyms. We can only assume it was
somehow spread by humans, possibly in ships ballast or with the transportation of livestock. It is frequently
attracted lights and is relatively common in collections. |
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References:
Stebnicka, Z.T. (2004) The New World species of Ataenius Harold, 1867. IV. Revision of the A. strigicauda-group (Coleoptera: Scarabaeidae:
Aphodiinae: Eupariini). Acta Zoologica Cracoviensia, 47(3–4), 211–228. |
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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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