Colletes ornatus Schrottky, 1902

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 : 264-266

Colletes ornatus Schrottky, 1902

Colletes ornatus Schrottky, 1902 . Holotype ♀ in MZUSP, examined. Type locality: Brazil, São Paulo, Jundiaí.

Diagnosis. Colletes ornatus is a little similar to C. altimontanus , but can be distinguished from it by the characters emphasized in the diagnosis for the latter (see above). Furthermore, C. ornatus is the only species of Colletes known to occur in Minas Gerais with a bright-orange tuft of hairs on pronotal lobe, contrasting with the paleyellow remaining pilosity on the dorsal surface of mesossoma.

♀/♂—labrum black, impunctate, but with longitudinal sulci; clypeus with mid-longitudinal depression; hypostomal carina forming a high, concave lamella; mid-posterior region of mesoscutum with large, smooth impunctate area; ventral region of mesepisternum, near ventral end of episternal groove, without swollen area surrounded by hairs; marginal zone of T1 flat.

♀—malar area 0.65 times as long as interocellar distance; clypeus coarsely rugose; F1 only slightly longer than its apical width; gena, behind the upper eye margin, concave but not carinate posteriorly; anterolateral angle of pronotum spiniform, at least as long as its basal width; pilosity on mesoscutum, except antero-lateral area, paleyellow; pilosity on mesepisternum, ventrally, sparse; fore coxa bearing a spine; punctation on T1 sparse and moderately coarse.

♂—malar area 0.85 times as long as interocellar distance; F1 slightly shorter than its apical width; gena, behind the upper eye margin, concave but not carinate posteriorly; anterolateral angle of pronotum spiniform, at least as long as its basal width; pilosity on mesoscutum pale-yellow; pilosity on mesepisternum, ventrally, sparse; fore coxa without spine; inner spur of hind tibia serrate; punctation on T1 moderately coarse and dense, generally more sparsely punctate disc.

Redescription. Female (Holotype, Fig. 14 ):

Measurements (mm): Approximate body length 9.4; head width 3.0; head length 2.4; interocellar distance 0.45; ocellorbital distance 0.46; F1 0.22 x 0.21 (length x apical width); malar area 0.29 x 0.38 (length x width); intertegular distance 2.4; wing length 6.4; length of hind basitarsus 1.2.

Structure: Labrum with longitudinal sulci; clypeus with mid-longitudinal depression; supraclypeal area on same plane as clypeus; hypostomal carina forming a high, concave lamella; gena, behind the upper eye margin, concave but not carinate posteriorly; anterolateral angle of pronotum spiniform, at least as long as its basal width; propodeum rugose laterally; ventral region of mesepisternum, near ventral end of episternal groove, without swollen area surrounded by hairs; fore coxa without spine; second recurrent vein of fore wing arcuate distad, “S”- shaped; outer surface of hind basistarsus flat; inner hind tibial spur serrate; marginal zone of T1 flat.

Body color: Black on face, metassoma and terga; dark-brown on mandible, galea, prementum, antenna, coxae, trochanters, sterna and marginal zones of terga; dark-ferruginous on tibiae and tarsi; light ferruginous on glossa, palpi, ocelli, tegulae, tarsal claws, wing veins and marginal zones of sterna.

Pilosity: Predominantly pale-yellow, except bright ferruginous on pronotal lobe and antero-lateral area of meoscutum; with some isolate dark-ferruginous hairs on inferior paraocular area, vertex, disc of mesoscutum and T4–T6. On mandible, simple, sparse and short; on paraocular area, branched, dense with? a mixture of long and short hairs; on clypeus, a mixture of simple and branched hairs, short and very sparse; on frons, branched, dense and long; on vertex, branched and short; on preoccipital fringe, branched, dense and very long; on mesoscutum, branched, very sparse and short; on scutellum, branched, very sparse and short; on metanotum, branched, sparse and long; on mesepisternum, forming a tuft of branched, moderately short hairs near tegula, branched, sparse and long laterally and ventrally; on metepisternum, branched, dense and long; on propodeum, laterally, branched, dense and very short, intermingled with erect, very long and very dense hairs; on fore coxa, branched, dense and very long; on fore femur, simple, dense and very short on dorsal surface, branched and very long on ventral surface; on fore tibia, simple, erect, dense and long on inner surface, almost laying on the integument, and sparse on outer surface; on fore tarsus, simple, dense and short on anterior surface, long and apically curved on posterior surface; on fore mediotarsi simple, moderately dense and moderately long; on mid coxa, branched, sparse and long; on mid trochanter, branched, dense and very long; on mid femur, forming a line of simple, very short and erect hairs on the proximal third of ventral surface, branched and very long on the remaining of ventral surface; on mid tibia, forming a line of branched, erect, moderately short hairs basally on inner surface, forming a tuft of branched, very short hairs on distal half of inner surface, simple, sparse and short on outer surface; on mid basitarsus, simple, thick, very dense and short on inner surface, very sparse on outer surface; on mid mediotarsi, simple, thick, dense and short; on hind coxa and trochanter, branched, dense and very long; on hind femur, apically-branched, thick, dense and very long on anterior surface, ordinarily branched on dorsal, ventral and posterior surfaces; on hind tibia simple, sparse and short on outer surface, thick and dense on inner surface, apically-branched and very long on inner margin, erect and very long on inner surface, apically-branched and very long on outer surface; on hind tarsus, simple, sparse and short on outer surface, denser and thicker on inner surface; on T1, branched, very sparse and long on disc, shorter and much denser on lateral margins, decumbent on marginal zone; on T2–T5, decumbent, with some isolate erect, short (long on T5) hairs; on T6, simple, semi-erect, very dense and long; on S1, branched, dense and long on disc; on S2, simple, erect, dense and short on disc; almost lying on the integument laterally, branched on marginal zone; on S3–S6, simple, semi-erect, very sparse and short on disc, almost lying on the integument and denser laterally, branched on marginal zones; on S5, simple, moderately dense and moderately long on disc, long on marginal zone; on S6, composed of few simple, short hairs on disc, denser and longer on posterior margin.

Punctation: Absent on labrum, disc of supraclypeal area, anterior third of scutellum, anterior and dorsal surfaces of mid femur, and ventral surface of mid tibia; on clypeus, very sparse, coarse and deep, integument between punctures shiny; on paraocular area, dense, with punctures overlapping and forming rugae, along the inferior half of eye, sparser and finer along superior half of eye; on scape, sparse, fine and shallow, punctation restricted to ventral surface; on frons, dense, coarse and deep, integument among punctures microreticulate; on vertex, very dense, coarse and shallow, space among punctures represented by punctures walls; on gena, sparse, fine and deep, sparser and finer along outer margin of eye; on mesoscutum, very sparse, very coarse and very deep on disc, with a very large impunctate area on mid-posterior region; on scutellum, a few isolate, coarse punctures on anterior half, integument among punctures shiny, much denser and coarser on posterior half, integument rugose; on metanotum, dense and very coarse, punctures without well-defined walls; on mesepisternum, laterally, dense, very coarse and very deep anteriorly to episternal groove, sparser and a little finer posteriorly to groove, sparse, fine and shallow ventrally; on metepisternum, very dense, very coarse and deep; on T1, sparse (sparser on mid-longitudinal band) and fine, intermingled by very fine punctures; on T2, sparse and very fine, intermingled by coaser punctures; on T3, very sparse and very fine; on T4–T6, inconspicuous; on S2–S6, very sparse, fine (coarse on S6) and very shallow.

Examined material. Holotype female: Labeled as follows—“17.586” “100.075” “ Colletes ♀; ornauts Schr.; P. Moure det.39” “ BRASIL, SÃO PAULO; JUNDIAÍ; Staudinger col.”. There are also two blank labels attached to the holotype, one, red square and the other, smaller, blue, round.

Additional material: seven specimens (7♂) from the following localities (see Fig. 11 ) —Brazópolis, ??/12/ 1961, [C.Elias], 3♂, { DZUP}. Uberaba, ??/10/1961, [C.Elias], 4♂, { DZUP}.

Geographic distribution. ARGENTINA; BRAZIL (Maranhão, Minas Gerais [see Fig. 11 ], Pará, Rio de Janeiro, and São Paulo); PARAGUAY.

Comments. Colletes ornatus was included as one of the drawings in the paper by Schrottky (1902), and this author thus described it (our translation from Portuguese): “Black; white-haired head; clypeus with some punctures and a mid-longitudinal groove; the antennae black. Mesonotum finely punctate, the scutellum with finer punctures, pilosity on both, fuscous. Anteriorly to the tegulae, there is a patch of long, orange hairs on each side, giving the insect a very beautiful appearance. Abdomen almost glabrous; the thorax ventrally, white-haired; legs fuscous, white-haired; scopa on hind femora somewhat yellowish. Tegulae testaceous; wings hyaline, the veins fuscous. Length 10 mm.” ( Schrottky 1902:345–346).

Figures

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.

FIGURE 14. Colletes ornatus Schrottky, 1902. Holotype ♀: dorsal view (A), frontal view (B), lateral view (C) and original labels (D).