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Scarabaeoidea of Southern South America Links
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Keys |
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Scarab Guide Links
(goes to the University of Nebraska
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Classification |
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Bolborhinum nasutum (Fairmaire and Germain, 1861) |
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Bolborhinum nasutum male in dorsal view.
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Bolborhinum nasutum male in lateral view. |
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Bolborhinum nasutum female in lateral view. |
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Original combination. Bolboceras nasutum Fairmaire and Germain, 1861: 2 (emended from Bolboceras nasutus).
Type locality: “Chilensia.”
Type series: lectotype at MNHN labeled a) “1620” (handwritten), b) “Bolboceras / nasutus” (handwritten by Fairmaire), c) “TYPE” (red label, typeset), d) “BOLBOCERAS / NASUTUM / FAIRMAIRE & GERMAIN / LECTOTYPE m# / A.B.T. SMITH” (red label, handwritten and typeset), e) “Southern Neotropical Scarabs / database # AS2609500 / Bolborhinum nasutum / (Fairmaire & Germain, 1861) / DET: A.B.T.SMITH 2007” (typeset). Lectotype designated by Mondaca and Smith (2008). |
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Synonym. Bolboceras andicola Philippi, 1873: 312.
Type locality: “La Leonera, Cord. Rancagua” Chile (original type locality: “Andibus prov. Santiago”).
Type series: neotype at FMNH labeled: “LA LEONERA / Cord. Rancagua / 26,30-Dic-1954” (typeset), b) “1750 m / Coll:L.E. Pena” (typeset with black border), c) “Bolbocera / geotrupoides / Lap. / det. L.E.Pena 1956” (handwritten and typeset), d) “Bolborhinum / nasutum / Fairmaire / DET. / H.F. HOWDEN 61” (handwritten and typeset), e) “FMNH1986 / L.PeñaColl. / Acc#17-422” (typeset), f) “BOLBOCERAS / ANDICOLA / PHILIPPI m# / NEOTYPE / A.B.T. SMITH” (red label, handwritten and typeset), d) “Southern Neotropical Scarabs / database # AS2607237 / Bolborhinum nasutum / (Fairmaire & Germain, 1861) m# / DET: A.B.T.SMITH 2006” (typeset). Neotype designated by Mondaca and Smith (2008). |
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Specimens examined. 53 specimens were examined from AUPC, FMNH, HAHC, JEBC, JMEC, MEUC, MGAC, MNHN, MNNC, SRTC, UCCC, UMCE, VMDC. |
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Diagnosis. Length 13.0-17.0 mm. Color usually reddish-brown. This species is distinguished from other Bolborhinum by the shape and placement of the cephalic armature in the males. The clypeal horn is located at midline of clypeal apex, directed anteriorly or vertically; horn robust, slightly curved, with apex truncate or rounded. Dorsal surface of the head flat, laterally with a pair of carina that converge distally at base of clypeal horn; vertex impunctate, not depressed. Pronotum with a small, deep anterior excavation located transversally behind of the apical margin; pronotal declivity widened and flattened broadly behind declivity; postero-superior ridge transverse, sinuate medially; pronotal surface dorsally impunctate, laterally with puncture scarce, moderately sparse.
Female similar to male, except in the shape and ornamentation of the head; dorsal surface with a weakly elevated tubercle situated on the frontoclypeal line. Pronotum with a small depression located immediately behind the apical margin; disc impunctate, laterally with moderately sparse to dense punctures; punctures moderate in size. |
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Distribution (Fig. 58). CHILE (53). V Región de Valparaíso (2): Piscicultura (2). Región Metropolitana de Santiago (12): Cerro El Roble (6); El Canelo (4); Quebrada San Ramón (1); Río Clarillo (1). VI Región del General Bernardo O’Higgins (6): Alto Huemul (5); La Leonera (1). VII Región del Maule (27): Cajón del Teno (1); La Mina (1); Reserva Nacional Altos del Lircay (1); Talca (1); Vilches Alto (23). VIII Región del Biobío (5): Las Trancas (1); Piedras Comadres (2); Recinto (1); Shangri-la (1). Country record (1). |
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Temporal data: January (9), February (1), October (8), November (10), December (24). |
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References:
Philippi, R.A. (1873) Chilenishe Insekten. Stettin Entomologische Zeitung, 34, 296-316, plate 1-2. |
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Excerpt from:
Mondaca, J. and A.B.T. Smith. (2008) A revision of the southern South American genus Bolborhinum Boucomont (Coleoptera: Geotrupidae: Bolboceratinae). Zootaxa, 1794, 1-48. |
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