taxonID	type	description	language	source
03800B62FFDF804E21E7FF76FE52F92C.taxon	description	(Figs. 1, 2)	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDF804E21E7FF76FE52F92C.taxon	diagnosis	Diagnosis. This new species is easily recognized by the yellowish coloration of clypeus and labrum, by the yellowish pubescence on T 2 (Fig. 2) and the yellowish-orange hairs on head and fore legs that contrast with the brown pilosity on the rest of the body (Figs. 1, 2).	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDF804E21E7FF76FE52F92C.taxon	description	Description. Holotype male. Measurements (mm): Approximately body length: 25.1. Head width: 6.7. Forewing length: 20.1. Mandible basal width: 1.8. Mandible length: 3.4. Escape length: 1.0. F 1 length: 1.6. F 2 length: 3.5. F 3 length: 4.5. UID: 2.7. DII: 3.4. Coloration: Integument of head in general dark brown, but mandible light brown with dark brown apex (Fig. 1). Labrum, clypeus, supraclypeal and paraocular areas yellowish (Fig. 1). Antenna brown, escape, pedicel and F 1 slightly reddish brown. Forelegs and pronotal lobe light brown. Mesoscutum, mesoscutellum and tegula dark brown (Fig. 2). Hypoepimeral tubercle, metanotum, metepisternum and propodeum reddish brown. Middle and hind legs brown (Fig. 2). Terga and sterna brown with yellowish brown distal margin. Wings brown with slight violet iridescence (Fig. 2). Pubescence: Head and forelegs yellowish-orange (Figs. 1, 2). Mesosoma with brown hairs, slightly darker on mesoscutum and mesoscutellum (Fig. 2). Middle and hind legs with dark brown hairs (Fig. 2). Metasoma with brown hairs, similar to those on mesoscutum, except T 2 with yellowish hairs (Fig. 2). Integument and sculpture surface: Labrum with fine areolation, almost absent, with coarse and relatively scattered punctation, with a narrow and not well-defined smooth longitudinal area. Clypeus strongly areolate and with fine and dense punctation, coarser and scattered towards the lateral sides. Distal margin of terga and sterna smooth. Structures: Maxillary palpus with five palpomeres (relative lengths: 2 nd> 3 rd> 1 st> 4 th ≈ 5 th). Mandible with three apically acute teeth, except second widely rounded (relative lengths: 1 st> 2 nd> 3 rd) (Fig. 1). Apical tooth widely separated from the others (Fig. 1). Third tooth with apex directed upwards. Trimmal angle absent. Acetabular carina reaching the base of second tooth (Fig. 1). Labrum relatively semicircular, without longitudinal carina (Fig. 1). Clypeus convex (lateral view) and with concave upper half (dorsal view). Central area of epistomal suture slightly more convex than central area of clypeal lower margin (Fig. 1). Inner orbits of compound eyes slightly diverging downwards (Fig. 1). Occipital area not visible behind the eyes (frontal view) (Fig. 1). Vertex slightly above the upper orbital tangent. External lateral area of lateral ocelli with a deep longitudinal cavity directed backwards. Pronotal lobe rounded. Mesoscutum without glabrous area on posterior half. Mesoscutellum with two rounded glabrous protuberances. Axilla raised, rounded and glabrous. Tegula with a small rounded protuberance on central inner side. Hypoepimeral area with relatively acute protuberance. Claws with well-developed internal tooth.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDF804E21E7FF76FE52F92C.taxon	materials_examined	Type specimen. Holotype male, with the following data label: Coleção Campos Seabra \ Cachimbo Pará - Brasil julho 1955 F. M. Oliveira (MNRJ).	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDF804E21E7FF76FE52F92C.taxon	etymology	Etymology. From Latin aureus (golden) and ceps (head) due to the yellowish-orange pubescence on head.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDF804E21E7FF76FE52F92C.taxon	distribution	Distribution. The distribution of this new species remains restricted to Cachimbo, in the Amazonian state of Pará, northern Brazil.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDF804E21E7FF76FE52F92C.taxon	discussion	Comments. This species exhibits a unique pattern of coloration of pilosity that makes it easily recognized and unmistakable between the species of Centris (Ptilotopus). The female of this new species is unknown.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDE804821A6FBBDFECCF936.taxon	description	(Figs. 3 - 5)	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDE804821A6FBBDFECCF936.taxon	diagnosis	Diagnosis. Integument and pubescence blackish (Figs. 3, 4). Clypeus areolate with central area of upper margin relatively bright, inpunctate, with very fine areolation, almost absent (Fig. 3). Dorsal surface of mesoscutellum with two elliptical, narrow, raised and well-defined glabrous area with lateroposterior margin with elevated ridge (Fig. 5).	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDE804821A6FBBDFECCF936.taxon	description	Description. Holotype female. Measurements (mm): Approximately body length: 30.4. Head width: 9.7. Forewing length: 20.6. Mandible basal width: 2.3. Mandible length: 4.4. Escape length: 1.4. F 1 length: 2.0. F 2 length: F 3 length: 0.5. DIS: 4.7. DII: 4.7. Coloration: Head black (Fig. 3), except malar area and center of mandible mahogany. Metepisternum, metanotum, and propodeum brown. Femora, sterna and T 1 dark reddish brown. T 2 - T 6 dark brown. Wings dark brown (Fig. 4) with greenish iridescence. Apex of fore and middle femora orange at sides. Central surface of internal half of tegula orange brown. Pubescence: Blackish, without yellow hairs on metasoma (Figs. 3, 4). Integument and sculpture surface: Clypeus strongly areolate, with coarse and dense punctation on periphery of disc; central area of upper margin relatively bright, impunctate, with very fine areolation, almost absent (Fig. 3). Labrum with coarse and very dense punctation. Posterior area of ocelli with short linear cavity projected backwards. Posterior area of ocelli with semicircular transversal linear cavity. Distal margin of T 2 - T 4 smooth. Structures: Flabellum elliptical. Maxillary palpus with four palpomeres (relative lengths: 2 nd> 3 rd> 1 st> 4 th). Mandible with three apically rounded teeth (relative lengths: 1 st> 2 nd> 3 rd) (Fig. 3). Apical tooth separated from the rest, with broad base (Fig. 3). Trimmal angle obtuse, almost absent. Acetabular carina reaching base of second tooth (Fig. 3). Labrum semicircular with well-developed central longitudinal carina. Clypeus convex, slightly concave near lower margin (lateral view). Vertex above the upper interocular tangent. Central area of epistomal suture straighter than central area of clypeal lower margin (Fig. 3). Occipital area well-developed, visible behind the eyes (frontal view) (Fig. 3). Pronotal lobe with acute projection. Hypoepimeral area with rounded tubercle. Mesoscutum with glabrous biconvex area on posterior half (Fig. 5). Mesoscutellum with two elliptical raised divergent posteriorly glabrous areas separated from each other, each with elevated ridge on lateroposterior margin (Fig. 5). Axilla raised and glabrous with relatively flat dorsal surface (Fig. 5). Tegula with a small rounded protuberance on central area of inner half. Primary anterior comb of fore elaiospathe starting below strigilis. Secondary comb formed by four giant apically curved hairs. Basitibial plate elliptical with abundant pilosity on disc, without secondary plate. Pygidial plate with rounded apex, with distal half slightly angled downwards (lateral view), without evident secondary plate. Claws with internal teeth, except hind leg.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDE804821A6FBBDFECCF936.taxon	materials_examined	Type material. Holotype female, with the following data label: Coleção Campos Seabra \ Brasil Goiás Minaçú V 1987 Monné & Roppa \ Minaçú Go V. 1987 Monné Roppa. Paratypes: 3 females with the same data label of the holotype. All specimens were deposited at MNRJ.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDE804821A6FBBDFECCF936.taxon	etymology	Etymology. From Latin neglectus (neglected, ignored) due to the misidentification of the specimens of this species with Centris atra Friese, 1899 (see below).	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDE804821A6FBBDFECCF936.taxon	distribution	Distribution. According to Moure (1995) and Silveira et al. (2002), this species occurs in the states of Goiás, Minas Gerais and Tocantins.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
03800B62FFDE804821A6FBBDFECCF936.taxon	discussion	Comments. Among the specimens studied was observed only a small variation in the coloration of the pubescence of the mesosoma and legs probably due to conservation conditions. This new species is similar to C. moerens. Both are differentiated by the yellow pilosity on T 1 - T 3 (absent in C. neglecta sp. nov. (Fig. 4), present in C. moerens), by the coloration of clypeus and mandible (mostly black in C. neglecta sp. nov. (Fig. 3) and reddish brown in C. moerens), by the curvature of the middle area of the upper and lower margins of clypeus (lower greater than upper in C. neglecta sp. nov. (Fig. 3) and relatively equal in C. moerens), and by the raised lateroposterior margin of glabrous areas of mesoscutellum (present in C. neglecta sp. nov. (Fig. 5) and absent in C. moerens (Fig. 6 )). Centris neglecta sp. nov. could also be confused with C. maranhensis Ducke, 1910, especially with specimens of that species with reduced yellow pubescence on mesosoma and metasoma. Both species are differentiated by the central area of upper margin of clypeus (with fine or absent areolation in C. neglecta sp. nov. (Fig. 3), uniformly areolated as on the rest of clypeus in C. maranhensis) and by the coloration of tegula (dark brown to black with light brown spot at central area of inner half in C. neglecta sp. nov. and uniformly dark brown to black in C. maranhensis). Additionally, in C. neglecta sp. nov. the pubescence of mesosoma and metasoma is completely blackish (Fig. 4), while in C. maranhensis there are yellow hairs generally on mesepisternum, mesoscutellum and on lateral sides of T 1 and T 2. The male of this new species is unknown.	en	Entomologia, Departamento de, Nacional, Museu, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro., Cristóvão, São, Janeiro, Rio de, E-mail, Brasil. (2019): Two new Brazilian species of oil-collecting bees of the genus Centris (Ptilotopus) Klug (Hymenoptera: Apidae). Revista Chilena de Entomología 1: 79-85
