Centris (Wagenknechtia) orellanai Ruiz, 1940

Vivallo, Felipe, 2013, Revision of the bee subgenus Centris (Wagenknechtia) Moure, 1950 (Hymenoptera: Apidae: Centridini), Zootaxa 3683 (5), pp. 501-537 : 515-517

Centris (Wagenknechtia) orellanai Ruiz, 1940

( Figures 17−20 , 35, 36 and 40 )

Centris nigerrima orellanai Ruiz, 1940 . 44: 335 (Original description).

Centris orellanai ; Snelling & Brooks, 1985. 369: 19 (Cleptoparasite). Chiappa, 1998. 22: 90, 91 (Distribution, key). Montalva & Ruz, 2010. 35: 45 (List, distribution).

Centris (Wagenknechtia) orellanai ; Rocha-Filho et al., 2009. 26: 301 (Cleptoparasite). Giannini et al., 2013. 258: 78 (Floral record).

Centris (Wagenknechtia) orellanae [sic]; Toro, 1986b. 13: 127 (Distribution).

Comments. During the preparation of this publication, I visited the collection of the Colegio San Pedro Nolasco, Santiago , Chile (CSPN) to photograph the holotype of Centris orellanai . According to J. Salamanca, the curator of the collection, the holotype had unfortunately been destroyed along with other specimens of that collection. In this paper a neotype for this species is designated and, described in detail to facilitate the differentiation of this species from others in the subgenus. A complete description of the male of this species can be found in Vivallo et al. (2002).

This species is similar to Centris cineraria , differing (both sexes) in the coloration of the pubescence on mesoscutum and scutellum (light brown to orange in C. orellanai ( Figs. 17–20 ); relatively whitish in C. cineraria ( Figs. 1–4 )), and by the metallic reflections on metasoma (relatively greenish in C. orellanai ( Figs. 18 and 20 ); bluish in C. cineraria ( Figs. 2 and 4 )). Both females also differ in the hair number of the secondary comb of the fore elaiospathe (four in C. orellanai ; three in C. cineraria ) and in the preapical tooth of the claw of midleg (present in C. orellanai ; absent in C. cineraria ).

Diagnosis. Both sexes with integument dark brown on head and mesosoma ( Figs. 17 and 19 ). Metasoma with greenish metallic reflections. Mesoscutum and scutellum with light brown or orange hairs. The rest of the body with dark brown pilosity ( Figs. 18 and 20 ). Female: fore elaiospathe located in the distal half of foretibia with the secondary comb formed by four giant spatulate hairs. Hairs of hind elaiospathe not overlapping. Claws with preapical tooth, except in hind legs.

Neotype female. Measurements. Approximate body length: 14.5; head width: 5.3; forewing length: 8.9; intertegular span: 5.9; F1 length: 1.3; F2 length: 0.2; F3 length: 0.2; UID: 3.0; LID: 3.3; mandible length: 3.2; mandible basal width: 1.1; labrum length: 1.1; labrum width: 1.5. Coloration. Integument dark brown to black, malar area light brown, legs slightly reddish brown ( Fig. 17 ). Metasomal terga and sterna dark brown with greenish metallic reflections except at the distal margins ( Fig. 18 ). Wing membranes slightly yellowish with veins light brown ( Fig. 18 ). Surface sculpture. Clypeus with coarse and relatively uniform punctation throughout, without defined smooth or elevated areas. Labrum with similar punctation but denser, mainly toward the distal edge; basal margin with a smooth area, slightly shorter at sides. Paraocular area with fine, dense and uniform punctation, sparser near the lateral ocellus. Mesoscutum and scutellum not areolate, with dense and relatively uniform punctation. T1 with fine and dense punctation at sides, sparser on disc. T2 with similar punctation, but the punctures of the disc are denser than on disc of T1. T3 and T4 with fine and dense punctation throughout, including the discs. T5 with similar punctation, but much denser than on previous terga. Pubescence. Dark brown, except mesoscutum, scutellum and tegula with light brown to orange hairs ( Fig. 17 and 18 ). T1 with dark brown slightly blackish, long and plumose hairs laterally, sparser, shorter and simple on disc. All other terga with dark brown to black, short and simple pilosity, mixed with some longer hairs but not covering the entire surface. Prepygidial fimbria with plumose and simple hairs intermixed. Pygidial fimbria with brown, long and simple hairs. Structure. Flabellum circular with the anterior margin slightly acute and projected forward. Labial palpus with the 4th palpomere apically truncate. Maxillary palpus with five palpomeres (2nd>3rd>1st>4th≈5th). Mandible with four teeth of acute apex ( Fig. 17 ). Apical tooth slightly widened at the base. Gap between third and fourth teeth longer than between others. Trimmal angle obtuse, poorly developed, almost absent. Acetabular carina reaching the base of the 4th tooth. Clypeal disc convex. Labrum semicircular. Inner orbits of compound eyes diverging below. Vertex above the upper ocular tangent. Distance between the lateral ocellus and the eye more than twice the diameter of the median ocellus. Scutellum slightly depressed longitudinally. Outer surface of the anterior tibia with a short and shallow concavity. Fore elaiospathe with the anterior primary comb forming a compact structure only in the distal half. Secondary anterior comb formed by four giant spatulate hairs. Hind elaiospathe with the hairs separated by more than twice their own diameter. Primary basitibial plate elliptical with rounded distal end and a deep cavity in the distal half. Secondary basitibial plate indicated only by an elevation from the anterobasal margin of the primary plate towards the posterior margin, bordering the cavity ( Fig. 35 ). Pygidial plate with rounded apex and without secondary plate ( Fig. 36 ). Claws of foreleg with preapical tooth very reduced in midleg and absent in hind leg.

Type material. Holotype female ( CSPN) destroyed. Neotype female here designated with the following information: Chile: V Región: Los Andes 05/02/2002 Vivallo, col\ Neotype Centris (Wagenknechtia) orellanai Ruiz, 1940 . The neotype will be deposited at MNHN.

Type locality. Chile: V Valparaíso Region: Los Andes.

Floral records. See table 1.

Distribution. This species occurs exclusively in Chile, from IV Coquimbo Region (Baños del Toro) to V Valparaíso Region (Los Andes). CHILE: ( Moure, 1950; Montalva & Ruz, 2010). IV COQUIMBO: ( Toro, 1986b). Los Pelambres ( Ruiz, 1940), Baños del Toro, Cuncumén, Río La Laguna ( Vivallo et al., 2002), Río Seco, Talahuén ( Wagenknecht, 1971). *Illapel, *Lagunitas. VI LIBERTADOR GENERAL BERNARDO O’HIGGINS: *Termas del Flaco. V VALPARAÍSO: Los Andes ( Toro, 1986b). *Los Maitenes.

Material examined. CHILE: IV COQUIMBO: 2 males: Coquimbo entre Vicuña y frontera Int. 1970-72. leg. A. R. Moldenke ( CTMI). 4 males: Baños del Toro 0 6/01/1966 L. Peña, col\ Coll. Cerda/ MNHN Chile ( MNHN). 1 female: Baños del Toro 24/09/1946 ( MNHN). 2 males: Baños del Toro 07/01/1950 ( MNHN). 1 female: Baños del Toro 07/01/1950 ( MNHN). 1 male: Baños del Toro 4 En.48\ orellanai \ 3 Centris orellanae -Ruiz ( DZUP). 2 females: Río Laguna 22/09/1946 Sielfeld, col\ Coll: Sielfeld/ MNHN Chile ( MNHN). 1 female: Rio Laguna Chile 22-XI-1946 Wagenknecht ( DZUP). 1 female: R. Laguna 2700 mts 22-XI-1946 ( DZUP). 2 females: Río Seco Lagunitas 16/12/1940 Sielfeld, col\ Coll: Sielfeld/ MNHN Chile ( MNHN). 1 female: Lagunitas 3900 mts. 16-XII- 1940 \ orellanai ( DZUP). 1 female: Hda. Illapel Chile 11-XI-54 2800 m.alt. L.E. Pena\ Centris orellanai (Ruiz) Det. J. S. Moure 1956 ( DZUP). VI LIBERTADOR GENERAL BERNARDO O’HIGGINS: VI Región T. del Flaco\ 5-XII- 1982 \ Magunacelaya col. Chile ( PUCV). V VALPARAÍSO: 1 male and 3 females: Los Andes: Los Maitenes 3500 msnm. 03/02/1973 Sielfeld, col\ Coll. Cerda/ MNHN Chile ( MNHN).

Figures

FIGURE 40. Distribution records for Centris escomeli Cockerell, 1926 and C. orellanai Ruiz, 1940.

FIGURES 17 – 20. Centris orellanai Ruiz, 1940. Fig. 17. Female (Neotype female: Los Andes, Chile): Head, frontal view. Fig. 18. Habitus, lateral view. Fig. 19. Male (Baños del Toro, Chile): Head, frontal view. Fig. 20. Habitus, lateral view. Scale bars 1 mm.

FIGURES 35 – 38. Figs. 35 and 36. Centris orellanai Ruiz, 1940 (Neotype female): Fig. 35. Basitibial plate. Fig. 36. Pygidial plate. Fig. 37. Centris muralis Burmeister, 1876: Basitibial plate. Fig. 38. Centris cineraria Smith, 1854: Male genital capsule (dorsal view). Scale bars 0. 5 mm.

FIGURES 1 – 4. Centris cineraria Smith, 1854. Fig. 1. Female (Viña del Mar, Chile): Head, frontal view. Fig. 2. Habitus, lateral view. Fig. 3. Male (Viña del Mar, Chile): Head, frontal view. Fig. 4. Habitus, lateral view. Scale bars 1 mm.