Spinoliella nomadoides (Spinola)

Gonzalez, Victor H., Smith-Pardo, Allan H. & Engel, Michael S., 2017, Phylogenetic Relationships Of A New Genus Of Calliopsine Bees From Peru, With A Review Of Spinoliella Ashmead (Hymenoptera: Andrenidae), Bulletin of the American Museum of Natural History 2017 (412), pp. 1-72 : 43-44

Spinoliella nomadoides (Spinola)

Figure 12

Camptopaeum [sic] nomadoides Spinola 1851: 196 (syntype ♀♀, MSNT, seen: central and northern provinces, Chile).

Spinoliella nomadoides (Spinola) ; Ashmead, 1899: 86.

DIAGNOSIS: This species can be distinguished by the combination of its larger body size (7–8 mm); compound eye inner orbits ventrally divergent in both sexes (fig. 12A, B); female pygidial plate narrow, with lateral margins converging toward apex at a 40° angle, apically truncate; male mandible arcuate, with small preapical tooth; frons, mesoscutum and mesoscutellum finely punctate to alveolate among large, scattered setiferous punctures, micropunctures or alveoli often faint on female mesoscutellar disc (thus appearing imbricate) (fig. 12C); female mesobasitarsus robust, about 3.3× longer than broad; metabasitibial plate depressed on disc, setose, delimited by a strong border or carina in both sexes (fig. 12E); female outer metatibial spur distinctly curved apically (fig. 12D); and metasoma light reddish brown distinctly contrasting with dark brown to black head and mesosoma. It resembles S. rufiventris and S. ruzi in the body color and size, and in the sculpturing of frons, mesoscutum and mesoscutellum; however, in those species the female pygidial plate is apically bifid, the metabasitibial plate is slightly depressed on the disc but not delimited by a strong border or carina, the female outer metatibial spur is apically straight, and the male mandible is straight, without a preapical tooth.

TYPE MATERIAL EXAMINED: Syntype ♀, [ Chile] ( MSNT).

MATERIAL EXAMINED (n = 3♀♀, 6♂♂):

CHILE: Atacama (R-III): 2♂♂, Atacama , Q. Maitencillo, SW of Vallenar, October 11, 1980, Luis E. Peña // AMNH_BEE00194212 (1♂ AMNH, 1♂ SEMC) ; 1♂, Region III, Rd. N of Huasco, km 72, -27.88955, -71.08239, 216 m, 14.x–07.xi.2013 [14 May–7 June 2013], J. Postlethwaite & S. Monckton ( PCYU) ; Coquimbo (R-IV): 2♀♀, Region IV, Caleta Los Hornos S of La Higuera, yellow pans, 11.x.97 [11 October 1997], L. Packer ( PCYU) ; 1♀, Vicuña , 15-Oct-1972, H. Toro Col. // AMNH_ BEE00194213 ( AMNH) ; 1♂, same as previous except 18-Oct 1972, Cabezas Col. // AMNH_

BEE00194211 ( AMNH); 1♂, Elqui, km 6 S Vicuna, Oct 20, 1991, J.G. Rozen, L. Pena & A. Ugarte // AMNH_BEE00194210 ( AMNH). Bío Bío (R-VIII): 1♂, Ñuble Prov., Las Trancas, 1200 m, L. Peña, on cactus flowers ( SEMC) .

DISTRIBUTION: Chile: Atacama (R-III): Atacama ; Coquimbo (R-IV): Elqui; Bío Bío (R-VIII): Ñuble.

FLORAL RECORD: A single male has been captured at flowers of an unidentified species of cactus ( Cactaceae ).

COMMENTS: The arcuate male mandible with a small preapical tooth of this species is unique among Spinoliella . Such a mandible resembles that of species of Arhysosage (see Engel, 2000).

Figures

FIGURE 12. Spinoliella nomadoides (Spinola) from Coquimbo, Chile (AMNH). A. Female facial view. B. Male facial view. C. Detail of male mesoscutum and mesoscutellum in dorsal view. D. Female metatibial spurs. E. Female metabasitibial plate. F. Male metatibial spurs, metabasitarsus, remaining metatarsomeres, and pretarsus.