Centris (Ptilotopus) dimidiata ( Olivier, 1789 )

Vivallo, Felipe, 2016, Taxonomic note on the oil-collecting bee Centris dimidiata (Olivier, 1789) (Hymenoptera: Apidae: Centridini), Zootaxa 4162 (3), pp. 519-534: 526-528

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http://doi.org/10.11646/zootaxa.4162.3.6

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lsid:zoobank.org:pub:DC017724-6E96-4B9C-8203-07243A5EA978

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http://treatment.plazi.org/id/03D387D0-FF9D-FFC3-FF10-F8E4AA602517

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scientific name

Centris (Ptilotopus) dimidiata ( Olivier, 1789 )
status

 

Centris (Ptilotopus) dimidiata ( Olivier, 1789)  

( Figures 17‒20 View FIGURES 17 – 20 , 25 View FIGURE 25 )

Apis dimidiata Olivier, 1789: 64   . New neotype designation.

Centris denudans rubida Gribodo, 1891: 111   . New synonymy.

Diagnosis. Female: Clypeus and labrum reddish brown. Head and mesosoma with light orange pubescence. Fore leg with light brown pilosity ( Figs. 17, 18 View FIGURES 17 – 20 ). Labrum triangular with longitudinal carina on lower half. Male: Lower paraocular area and labrum dark yellow ( Fig. 19 View FIGURES 17 – 20 ). Clypeal disc dark yellow with light brown longitudinal spot ( Fig. 19 View FIGURES 17 – 20 ). Labrum semicircular, without longitudinal carina on lower half. Inner orbits of compound eyes relatively parallel ( Fig. 19 View FIGURES 17 – 20 ). This species is most similar to C. denudans   . Females differ by the coloration of the pubescence on head (light orange in C. dimidiata   , Fig. 17 View FIGURES 17 – 20 ; dark brown in C. denudans   ) and forelegs (light brown in C. dimidiata   , Figs. 17, 18 View FIGURES 17 – 20 ; dark brown in C. denudans   ). Males differ by the coloration of the lower paraocular area and labrum (dark yellow in C. dimidiata   , Fig. 19 View FIGURES 17 – 20 ; light yellow in C. denudans   ), and by the clypeal disc (dark yellow with light brown longitudinal spot in C. dimidiata   , Fig. 19 View FIGURES 17 – 20 ; light yellow in C. denudans   ).

Description. Neotype female. Measurements: Approximate body length: 24.4; head width: 7.45; thorax width: 9.4; forewing length: 17.0; UID: 3.9; LID: 3.9; mandible length: 3.3; mandible basal width: 2.0; F1 length: 1.8; F2 length: 0.4; F3 length: 0.4. Coloration: Integument dark brown on head, mesosoma and metasoma. Legs brown, lighter on fore leg ( Figs. 17, 18 View FIGURES 17 – 20 ). Tegula orange to light brown ( Fig. 18 View FIGURES 17 – 20 ). Wing membrane and veins dark brown with violet iridescence ( Fig. 18 View FIGURES 17 – 20 ). Sculpture: Clypeus strongly areolate with coarse and very dense punctation (di<ds), with an impunctate longitudinal band on disc. Labrum with coarser and sparser punctures than on clypeus (di<ds). Terga and sterna finely areolate with fine, very dense and uniform punctation (di≈ds). Pubescence: Head and mesosoma with light orange pubescence, darker on vertex, clypeus and labrum ( Fig. 17 View FIGURES 17 – 20 ). Upper posterior surface of head with some long and simple hairs. Middle and hind femora with brown pilosity. Middle and hind legs with dark brown pubescence ( Fig. 18 View FIGURES 17 – 20 ). Basitibial plate with dense, dark brown pubescence. Metasoma with dark brown hairs, light brown on dorsal surface of T1. Structures: Mandible with three teeth of acute apex (1st>2nd≈3rd) ( Fig. 17 View FIGURES 17 – 20 ). Clypeus relatively flat (lateral view). Trimal angle absent. Acetabular carina reaching base of second tooth. Vertex above upper ocular tangent ( Fig. 17 View FIGURES 17 – 20 ). Inner orbits of compound eyes relatively parallel ( Fig. 17 View FIGURES 17 – 20 ). Mesoscutum with two well-defined glabrous areas, also present on mesoscutellum, but smaller. Elaiospathes with compact primary combs. Secondary anterior comb formed by four giant apically curved hairs. Basitibial plate elliptical, with raised posterior edge. Secondary plate absent. Primary pygidial plate narrow, with slightly broad and rounded apex. Pretarsal claws with preapical tooth.

Description of male. Measurements: Approximate body length: 21.9; head width: 6.9; thorax width: 9.9; forewing length: 19.4; UID: 2.4; LID: 3.1; mandible length: 2.9; mandible basal width: 1.7; F1 length: 1.5; F2 length: 0.4; F3 length: 0.4. Coloration: Integument dark brown on head, mesosoma and metasoma. Legs brown, fore legs lighter ( Figs. 19, 20 View FIGURES 17 – 20 ). Tegula orange to light brown, translucent ( Fig. 20 View FIGURES 17 – 20 ). Wing membrane and veins dark brown, with violet iridescence. Sculpture: Clypeus strongly areolate with coarse and dense punctation. Labrum with coarser and denser punctures than on clypeus. Terga and sterna with fine, very dense and uniform punctation. Pubescence: Head, mesosoma and fore leg with light orange pubescence, darker on vertex ( Figs. 19, 20 View FIGURES 17 – 20 ). Upper posterior surface of head with some long and simple hairs laterally. Middle and hind legs with dark brown pubescence, lighter on femora ( Fig. 20 View FIGURES 17 – 20 ). Metasoma with dark brown, long pubescence ( Fig. 20 View FIGURES 17 – 20 ), light brown on dorsal surface of T1. Structures: Mandible with two teeth (2nd>1st); first tooth with acute apex, second concave ( Fig. 19 View FIGURES 17 – 20 ). Clypeus slightly convex (lateral view), with concave disc (ventral view). Trimal angle absent. Acetabular carina reaching base of second tooth. Vertex above upper ocular tangent ( Fig. 19 View FIGURES 17 – 20 ). Mesoscutum with two welldefined glabrous areas, also present on mesoscutellum, but smaller. Mesoscutellum with two rounded projections on dorsal surface. Pretarsal claws with well-developed preapical tooth.

Type data. Centris dimidiata: Whereabouts   unknown. As mentioned above, Olivier (1789) did not specify the sex or the number of specimens examined in the original description. According to the morphological characteristics given, he probably used one (or more) female(s). Neotype female with the following data: HYMNRJ 000312\ Coleção Campos Seabra\ Porto Velho Guaporé Brasil XI-1954 M. Alvarenga, Dente, Pereira e Werner (MNRJ) ( Fig. 23 View FIGURES 21 – 24 ).\ Neotype Apis dimidiata Olivier, 1789 F. Vivallo   des., 2016.

Centris denudans rubida   : holotype female with the following information label: Centris denudans   ♀ var Lep. rubida Grib. D. Gribodo   \ Caracas (MCG, examined).

Type localities. Centris dimidiata: Original   type locality: French Guiana: Cayenne. New type locality: Brazil: Porto Velho ( Fig. 23 View FIGURES 21 – 24 ). Centris denudans rubida   : Venezuela: Caracas ( Fig. 24 View FIGURES 21 – 24 ).

Distribution ( Fig. 25 View FIGURE 25 ). * BRAZIL: AMAZONAS: Acanga-Barcelos (Rio Negro). RONDÔNIA: Porto Velho. VENEZUELA: DISTRITO FEDERAL: Caracas ( Gribodo 1891; Dalla Torre 1896; Moure 1960b; Moure & Seabra 1962).

Material examined. BRAZIL: AMAZONAS: 1 male: Acanga-Barcelos, R. Negro AM   . Brasil 6, 8 VIII-1980 \ AS-20, 62º43’W, 1º7’S Camargo, Mazucato leg.\ Ptilotopus rubida ( Gribodo, 1891) Det. Moure, 1992   . ( RPSP) GoogleMaps   . RONDÔNIA: 1 male: Coleção Campos Seabra \ Porto Velho Guaporé Brasil XI-1954 M. Alvarenga, Dente, Pereira e Werner ( MNRJ)   .

RPSP

Universidade de Sao Paulo

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Apidae

Genus

Centris

Loc

Centris (Ptilotopus) dimidiata ( Olivier, 1789 )

Vivallo, Felipe 2016
2016
Loc

Centris denudans rubida

Gribodo 1891: 111
1891
Loc

Apis dimidiata

Olivier 1789: 64
1789