Glaresis smithi Paulsen

Paulsen, M. J., 2016, Two new species of South American Glaresidae (Coleoptera: Scarabaeoidea), Zootaxa 4154 (5), pp. 595-600 : 598-599

Glaresis smithi Paulsen , new species

Figs. 2 , 5, 8.

Type locality. ARGENTINA: La Rioja: Guandacol.

Type series. Holotype male, deposited at CMNC, labeled: a) “ ARGENTINA, La Rioja / Guandacol , 1000m. / 1-3.XII.1983, L. Peña / at light”; b) “ H. & A. Howden / Collection / Ottawa , Canada ”; c) on red paper, “ Glaresis smithi / ♂ Paulsen / HOLOTYPE ” . Allotype female, deposited at CMNC, labeled: a) “ ARGENTINA, La Rioja / Guandacol , 1000m. / 1-3.XII.1983, L. Peña / at light”; b) “ H. & A. Howden / Collection / Ottawa , Canada ”; c) on red paper, “ Glaresis smithi / ♀ Paulsen / ALLOTYPE ”. Three paratypes, ( CMNC) labeled: a) as holotype; b) “[ Glaresis / fritzi / Mart.] / Det.: H.F. Howden, 19[86]”. Thirty-nine paratypes, ( CMNC, FSCA, LEMQ, MJPC) labeled: a) as holotype. Two paratypes, ( CMNC) labeled: a) as holotype; b) “ H. & A. Howden / Collection / Ottawa , Canada”. One paratype, ( LEMQ) labeled: a) “ ARGENTINA, Mendoza / 40km. N. San Rafael / 100m . , 6.XII.1983 / L. Peña ”. One paratype, ( CMNC) labeled: a) “ ARGENTINA, Mendoza / 40km. N. San Rafael / 100m ., 6.XII.1983 / L. Peña ”; b) “ H. & A. Howden / Collection / Ottawa, Canada ”. Two paratypes ( CMNC) labeled: a) “ ARGENTINA : Mendoza / 1 km N Reserva Telteca / S32º18'40'' W67º54'08'' / Jan- 4-2003, 540 m / F.C. Ocampo, A.B.T. Smith ”. One paratype ( UNSM) labeled: a) “ ARGENTINA : Mendoza / Reserva Ecologica de Nacuñan / S34º 02 42 ́́W 67º54 34 ́́/ Jan- 17-2003, 824m / F.C. Ocampo, A.B.T. Smith ”; b) “ UNSM Scarab DNA / Voucher specimen / [ AS 151 / MAY 2003]”. Six paratypes, ( CMNC) labeled: a) “Sa. Vaca Muerta / (950 m. s.n.m.) / Neuquen – Arg. ”; b) “ 14-XII-74 / Lg. M. Gentili”; c) “ H. & A. Howden / Collection / Ottawa , Canada ”. Paratypes (55) with label, on yellow paper, “ Glaresis smithi / Paulsen / PARATYPE ”.

Description, holotype male. Length 3.7 mm, width 1.7 mm. Color dark yellowish brown. Head with surface of clypeus and frons with moderate tubercles; tubercles separated by 2–3 diameters. Clypeal apex almost truncate, margin anteriorly not crenulate and narrowly beaded, lateral angles angulate. Mandible with apex and internal teeth strong but abraded, external lobe near base rounded. Pronotum transversely depressed in anterior ¼ and foveate at lateral ¼ of depression; fovea on each side at middle near lateral margin; distinct central furrow extended from base to transverse anterior depression. Pronotal surface with sparse, setae-bearing, weakly elongate tubercles; tubercles short as setae; basal pronotal margin crenulate, especially at posterior angle. Elytra with striae weakly concave, with small, round tubercles at setal bases; seta indistinct, shorter than rectangular interval punctures; interval with punctures shallow and surface between almost coplanar with striae. Metasternum lacking metatibial furrow. Mesotibia with 4 spines in distal half, equally projecting at bases (mesotibia not appearing toothed at middle); apex rounded. Posterior metatrochanteral margin tridentate with largest, obtuse tooth before metafemur; superior surface of metatrochanter unarmed. Metafemora with small tooth near trochanter; superior surface unarmed; externally with tuberculate carina from median projection extending onto ventral surface but interrupted, appearing as two distinct tubercles ( Fig. 5). Metatibia triangular, external margin not distinctly projecting at middle ( Fig. 8). Male genitalia not differing significantly from that of G. fritzi (see Gordon & Hanley 2014, fig. 15E).

Variation. Allotype female: Length 4.0 mm, width 1.7 mm. Paratypes: Length 3.1–4.0 mm, width 1.5–1.9 mm. Color light to dark reddish brown.

Distribution ( Fig. 10 ; n = 57). ARGENTINA (51): La Rioja (44): Guandacol. Mendoza (5): 40 km N San Rafael; Reserva Telteca; Reserva Nacuñan. Neuquén (6): Sierra de la Vaca Muerte.

Temporal Distribution. January (3), December (54).

Etymology. The species is named in honor of my friend, former lab-mate, and colleague, Andrew B.T. Smith, Canadian Museum of Nature, Ottawa, Canada, who collected part of the type series, for his research and valued collaboration on taxonomy of the Scarabaeoidea of southern South America.

Remarks. Overall this species seems to be found at higher elevations than G. fritzi , although the two species have been collected together at 500–1100 m in Mendoza Province in and around Reserva Nacuñan. The short, fine, almost indistinct elytral setae and ventral surface of the metatibia with two tubercles at middle ( Fig. 5) will readily identify this species.

Figures

FIGURE 10. Distribution of South American species of the Glaresis inducta group: orange circles = G. fritzi, white squares = G. smithi, blue triangles = G. mondacai.

FIGURES 1 – 3. Dorsal habitus of South American species of the Glaresis inducta group. 1) G. fritzi, 2) G. smithi, 3) G. mondacai.