Colletes argentinus Friese, 1908

Ferrari, Rafael R. & Silveira, Fernando A., 2015, The species of Colletinae (Hymenoptera: Colletidae) in the Brazilian state of Minas Gerais, Zootaxa 3914 (3), pp. 245-274 : 257-260

Colletes argentinus Friese, 1908 stat. rev.

Colletes argentinus Friese, 1908 . Lectotype ♂ at ZMHB (designated by Moure & Urban [2002]), examined. Type locality: Argetina, Mendoza.

Colletes rugicollis ; Moure & Urban, 2002 (partim).

Diagnosis. This species is similar to C. rugicollis , however, they can be distinguished by the facial pilosity, which, in C. argentinus , is composed of black and white hairs (entirely yellowish in C. rugicollis ) and by the ordinary hypostomal carina in C. argentinus (forming a high, concave lamella in C. rugicollis ).

♀♂—Labrum black, impunctate and without longitudinal sulci; clypeus without mid-longitudinal depression; hypostomal carina ordinary; mid-posterior region of mesoscutum with small, smooth impunctate area; ventral region of mesepisternum, near ventral end of episternal groove, normal, without swollen area surrounded by hairs; marginal zone of T1 convex.

♀—Malar area 0.35 times as long as interocellar distance; clypeus coarsely rugose; F1 slightly longer than its apical width; gena, behind the upper eye margin, flat, not carinate posteriorly; anterolateral angle of pronotum triangular, shorter than its basal width; pilosity on mesoscutum composed of a mix of black and white hairs; pilosity on mesepisternum, ventrally, sparse; fore coxa without spine; inner spur of hind tibia serrate; punctation on T1 coarse and dense.

♂—Malar area 0.5 times as long as interocellar distance; clypeus with rugae; F1 slightly shorter than its apical width; gena, behind the upper eye margin, flat, not carinate posteriorly; anterolateral angle of pronotum triangular, shorter than its basal width; pilosity on mesoscutum composed of a mix of black and white hairs; pilosity on mesepisternum, ventrally, sparse; fore coxa without spine; inner spur of hind tibia serrate; punctation on T1coarse and dense; S7 as illustrated in Figures 6 C, 6D; genitalia as illustrated in Figures 7 C, 7D.

Redescription. Male (Lectotype, Fig. 10 ):

Measurements (mm): Approximate body length 9.1; head width 2.9; head length 2.4; interocellar distance 0.55; ocellorbital distance 0.48; F1 0.16 x 0.26 (length x width); malar area 0.22 x 0.40 (length x width); intertegular distance 2.3; wing length 6.2; length of hind basitarsus 0.9.

Structure: Labrum with longitudinal sulci; clypeus without mid-longitudinal depression but with coarse longitudinal rugae; hypostomal carina ordinary; gena, behind the upper eye margin, flat, not carinate posteriorly; anterolateral angle of pronotum triangular, shorter than its basal width; outer surface of hind basitarsum flat; marginal zone of T1 convex.

Body color: Predominantly black, except light-brown on tarsi, tarsal claws, tibial spurs, wing veins (except costal vein), pterostigma; dark-brown on galea, mandible, costal vein, femora, tibiae and marginal zones of terga.

Pilosity: Predominantly dark, except whitish on face, gena, preoccipital fringe, mesoscutum, and marginal zones of S2–S5. On mandible simple, moderately sparse and moderately short. On clypeus, branched, very sparse and moderately short (with some moderately long hairs intermingled). On paraocular area, branched, dense and long. On frons, branched, moderately sparse and long. On preoccipital fringe, branched, dense and long. On gena, branched, moderately sparse and short along superior margin of eye; long along external margin of eye. On vertex, branched, moderately dense and long. On mesoscutum, branched, moderately dense (black pilosity much more abundant than white one) and moderately long (black hairs slightly longer than white ones). On scutellum, branched, moderately long on anterior third; long on posterior two-thirds; forming a tuft on antero-lateral region. On metanotum, branched, dense and very long. On mesepisternum, forming a tuft of whitish, branched, moderately long hairs with sparse black hairs near tegula; much dense and long on disc; branched, moderately dense and much long on ventral area. On metepisternum, branched, moderately dense and long. On metapostnotum branched, moderately dense and long. On propodeum, laterally, branched, moderately sparse and very long. On fore femur, sparse, restrict to proximal margin on inner surface. On fore tibia, simple, moderately dense and moderately short on external surface; moderately long on inner surface. On fore basitarsus, simple, dense and moderately short on inner surface; moderately dense and moderately long on external surface. On mid trochanter, branched, moderately dense and long. On mid femur, forming a tuft of simple, moderately short hairs on inner surface; sparse and short on external surface. On mid tibia, simple, dense and moderately long. On mid basitarsus, simple, thick, dense and moderately long on inner surface; sparse and very long on external surface. On hind coxa, branched, dense and long. On hind trochanter, branched, dense and very long. On hind femur, branched, moderately sparse and long on inner surface; simple, dense and short on external surface. On hind tibia, simple, thick, very dense and moderately short on inner surface; sparse and moderately long on external surface. On hind basitarsus, simple, very dense and moderately short on inner surface; very sparse and long on external surface. On T1, branched, very sparse and moderately long on disc; moderately sparse and short laterally. On T2, very inconspicuous on disc; simple or only apically branched, moderately sparse, thick (when long) or thin (when short) laterally; very sparse on marginal band. On T3–T6 simple, sparse and short. On T7, simple, thick, moderately long and very dense. On S1, branched, moderately sparse and very long. On S2, branched, sparse and short on disc; moderately dense and moderately long on marginal zone. On S4–S5, branched, moderately dense and short on disc; long on marginal zone. On S6, simple, sparse and moderately short anteriorly; long posteriorly.

Punctation: absent on labrum and on anterior halves of S4–S5. On clypeus, moderately dense and very coarse, forming striae due to puncture overlapping. On supraclypeal area, formed by a few coarse punctures on disc; moderately coarse laterally. On paraocular area, fine and very dense, but sparse on narrow longitudinal strip along eye. On scape, dense, very shallow and fine. On frons, very dense, very coarse and very deep. On interocellar region, dense, deep and moderately coarse. On vertex, very dense, moderately deep and coarse near ocelli; sparse, very fine (several punctures) or moderately coarse (some punctures) on elsewhere. On gena, dense, moderately deep and moderately coarse along superior eye margin. On mesoscutum, very dense, very deep and very coarse on disc; not as dense on mid-posterior region. On scutellum, very deep, coarse and very dense. On metanotum, very dense, puncture walls very thin. On mesepisternum, laterally, very dense, very coarse and very deep near scrobe; moderately dense and coarse ventrally. On metepisternum, very dense, deep and coarse. On propodeum, laterally, moderately dense, moderately shallow and moderately coarse. On T1, very dense, very coarse and deep; sparse on anterior margin and medially. On T2 very dense, shallow and very coarse. On T3, moderately sparse, deep and moderately coarse. On T4, moderately sparse, shallow and moderately fine. On T5–T7, inconspicuous. On S2–S6, moderately sparse, very shallow and very fine, the integument shiny.

Examined material. Lectotype male: Labeled as follows—“ Argentina; Mendoza; 10.2.1907; Jensen” “ Colletes ; argentinus ; 1907 Friese det.” “ Type ” “Zool. Mus.; Berlin”.

Additional material: 113 specimens (61♀ and 52♂) from the following localities (see Fig. 11 ) —Baependi, Parque Estadual da Serra do Papagaio, 08/04/2008, [F.A.Silveira], 1♀, { UFMG}; 09/04/2008, [F. A. Silveira], 2♀, { UFMG}; 10/04/2008, [F.A.Silveira], 1♀, { UFMG}. Belo Horizonte, COPASA/Barreiro, 24/09/1999, [G. Sousa], 1♀, { UFMG}; Parque das Mangabeiras, 05/12/1996, [J.Damasceno], 1♀, { UFMG}; 09/05/1997, [J.Damasceno], 1♀, { UFMG}. Cássia, Rancho do Popi, 28/03/1999, [E.A.B.Almeida], 6♂, { UFMG}. Itajubá, 02/12/1955, [M.Arié], 1♂, { DZUP}. Juiz de Fora, 11 / 03/1985, [M.V.Garcia], 1♀, { MEUV}. Ouro Preto, 25/01/1985, [Melo, Soares & Morato], 1♂, { MEUV}. Passos, ??/02/1961, [C.Elias], 1♀ and 1♂, { DZUP}; ??/03/1961, [C.Elias], 11♀ and 3♂, { DZUP}; ??/04/1961, [C.Elias], 2♂, { DZUP}; 20–25/11/1961, [C.Elias], 1♀ and 1♂, { DZUP}; 24/02/ 1962, [C.Elias], 10♀ and 1♂, { DZUP}; 01–08/03/1962, [C.Elias], 5♀, { DZUP}; 09–15/03/1962, [C.Elias], 1♀, { DZUP}; 21–28/03/1962, C.Elias,1♀, { DZUP}; ??/04/1962, [C.Elias], 1♀, { DZUP}; 21/05/1962, [C.Elias], 1♂, { DZUP}; 01–07/06/1962, [C.Elias], 1♀, { DZUP}; 01–03/11/1962, [C.Elias], 1♂, { DZUP}; 12–17/11/1962, [C.Elias], 5♂, { DZUP}; 24–31/12/1962, [C.Elias], 1♀ and 2♂, { DZUP}; 05/01/1963, [C.Elias], 1♀ and 2♂, { DZUP}; 16–22/01/1963, [C.Elias], 1♀ and 1♂, { DZUP}; ??/06/1963, [C.Elias], 2♀ and 1♂, { DZUP}; 24/10/ 1963, [C.Elias], 1♀, { DZUP}; 04/09/1963, [C.Elias], 2♀ and 1♂, { DZUP}; 16–21/12/1963, [C.Elias], 1♂, { DZUP}; ??/03/1964, [C.Elias], 2♂, { DZUP}. Patrocínio, 05/10/1965, [C.Elias], 1♂, { DZUP}. Poços de Caldas, 23/11/1962, [C.Elias], 1♀ and 5♂, { DZUP}. Santa Leopoldina, 04/03/1964, [C.Elias], 1♀, { DZUP}. Viçosa, 29/ 04/1985, [G.Melo], 1♀, { MEUV}; Universidade Federal de Viçosa, 18/11/1986, [G.S.Bastos], 1♀, { MEUV}; 24/ 10/1987, [J.R.Cure], 1♂, { MEUV}; 08/04/1988, [G.S.Bastos], 1♂, { MEUV}; 25/11/1988, [G.S.Bastos], 1♂, { MEUV}; 14/12/1988, [G.S.Bastos], 1♀, { MEUV}; 11/02/1989, [G.S.Bastos], 2♀, { MEUV}; [J.R.Cure], 1♀, { MEUV}; 25/02/1985, [G.S.Bastos], 2♀ and 4♂, { MEUV}; 04/03/1989, [G.S.Bastos], 1♂, { MEUV}; 11/03/1989, [G.S.Bastos], 1♀, { MEUV}; 18/03/1989, [F.A.Silveira], 2♂, { MEUV and UFMG}; [G.S.Bastos], 1♀, { MEUV}; 18/10/1989, [A.A.Soares], 1♀ and 2♂, { MEUV}; 03/12/1989, [G.S.Bastos], 1♂, { MEUV}.

Geographic distribution. ARGENTINA; BRAZIL (Minas Gerais [see Fig. 11 ]).

Comments. C. argentinus may be a junior synonym of C. punctatissimus Schrottky, 1902 , which is currently considered as a junior synonym of C. rugicollis . The type of C. punctatissimus should be deposited in MZUSP, but could not be found there and may be lost ( Rasmussen et al. 2009).

Figures

FIGURE 6. Sternum 7 (S 7) of Colletes. Dorsal view of S 7 of C. altimontanus Ferrari & Silveira, sp. n. (A), C. argentinus Friese, 1908 (C), C. meridionalis Schrokkty, 1902 (E), C. petropolitanus Dallta Torre, 1896 (G), C. rufipes Smith, 1879 (I), and C. rugicollis Friese, 1900 (K). Ventral view of S 7 of C. altimontanus (B), C. argentinus (D), C. meridionalis (F), C. petropolitanus (H), C. rufipes (J), and C. rugicollis (L).

FIGURE 7. Genitalia of Colletes. Dorsal view of genitalia of C. altimontanus Ferrari & Silveira, sp. n. (A), C. argentinus Friese, 1908 (C), C. meridionalis Schrokkty, 1902 (E), C. petropolitanus Dallta Torre, 1896 (G), C. rufipes Smith, 1879 (I), and C. rugicollis Friese, 1900 (K). Ventral view of genitalia of C. altimontanus (B), C. argentinus (D), C. meridionalis (F), C. petropolitanus (H), C. rufipes (J), and C. rugicollis (L).

FIGURE 10. Colletes argentinus Friese, 1908. Lectotype ♂: dorsal view (A), frontal view (B), lateral view (C), and original labels (D).

FIGURE 11. Geographic records of species of Colletes in the state of Minas Gerais, Brazil. In the map, records of C. argentinus Friese, 1908 are represented by stars; C. ornatus Schrottky, 1902 by triangles; and C. albicinctus Moure, 1943 by white circles.