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Scarabaeoidea of Southern South America Links |
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Scarab Guide Links
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Classification |
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Aulacopalpus aconcaguensis Smith, 2002
Aulacopalpus aconcaguensis Smith 2002:401. |
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Figure 12. Parameres in caudal view of
Aulacopalpus aconcaguensis. |
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Distribution of Aulacopalpus aconcaguensis and
Aulacopalpus castaneus. |
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Holotype. Male. Length 10.9 mm. Width 6.0 mm. Color: head and elytron light brown,
pronotum dark brown with greenish reflections. Head: Figure 4. Dorsal surface densely
punctate and moderately setose; punctures moderately-sized; setae long, slender, tawny.
Frontoclypeal suture weakly bisinuate. Labrum with apex vertically produced with respect
to clypeus, weakly produced at middle, rounded. Maxillary palpus with terminal
segment enlarged, with deep sulcus. Mentum with surface moderately setose, apex acuminate.
Antenna 10-segmented (segments 5 and 6 partially fused making antenna appear
9-segmented); club elongated, flattened, longer that combined basal segments (club
length approximate to head length). Pronotum: Form widest at middle, midline absent
(weakly punctate in other individuals). Surface densely punctate, moderately setose;
punctures moderately-sized; setae long, slender, tawny. Scutellum: Shape parabolic: 1.3
times wider than long medially. Surface densely punctate, setose; punctures moderately
large; setae long, slender, tawny. Elytron: Surface glabrous. Longitudinal striae punctate;
punctures moderately-sized, separated by 2-6 puncture widths. Intervals sparsely punctate
with moderately-sized punctures. Epipleuron with row of dense setae ventral to bead.
Pygidium: Width 2.3 times length medially. Surface sparsely punctate, moderately setose;
punctures moderately-sized; setae tawny. Venter: Thorax densely setose; setae long, tawny.
Legs: Protibia with 3 subequally large teeth. Tarsal claws with modified claw slightly
thickened when compared to other claw, apex bifurcate. Tarsomere 5
without ventromedial tooth. Meso- and metatibia with apical spurs
slender, acute. Mesotibial apex with 17 spinules. Metatibial apex with 25 spinules. Parameres:
Figure 12. Basally with broad, medial furrow.
Variation. (34 paratypes). Length 10.9-16.6 mm. Width 6.0-8.6 mm. Color
of elytron light to dark brown. The paratypes do not differ significantly from
the holotype. Female unknown.
Etymology. From the latinized adjective for "Aconcaguan," referring to the
region in Chile in which this species is found and the province where most of
the type series was collected. |
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Diagnosis. This species is distinguished from all other species in the genus
Aulacopalpus by the following combination of characters: antennal club elongated
in males (length equal to or slightly shorter than head); pronotum green
to greenish brown when viewed without magnification; elytron brown, glabrous;
all tarsal claws with modified claw slightly thickened when compared
to other claw and with apex bifurcate (males); tarsomere 5 without ventromedial
tooth; parameres basally with broad, medial furrow. |
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Distribution (see map). Coastal Chile from Coquimbo to Santiago.
Locality Data. Based on 35 specimens examined from the CMNC, FMNH,
MNNC, PVGH.
CHILE (34). ACONCAGUA (19): Cachagua, Zapallar. COQUIMBO (5):
Coquimbo, Guaquén, Ovalle, Quebrada Amolanas. SANTIAGO (3): Las Cruces.
VALPARAISO (7): Algarrobo, El Totoral, La Campana, Placeres Tunquén.
NO DATA (1). |
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Temporal Data. February (1), May (2), June (2), July (9), August (18),
September (2). |
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Excerpt from:
Smith,
A. B. T. 2002. Revision of the South American Endemic genus Aulacopalpus Guérin-Ménville with phylogenetic and biogeographic
analyses of the subtribe Brachyisternina (Coleoptera: Ruteliinae:
Anoplognathini: Brachysternina). Coleopterists Bulletin 56: 379-437. |
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