Tetraglossula deltivaga Ogloblin 1948
Creators: name: Almeida, Eduardo A. B.
name: Gibran, Nadia S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Colletidae
Tetraglossula
Tetraglossula deltivaga

description: Tetraglossula deltivaga Ogloblin, 1948
(Figures 10, 11, 12, 13, 14 I –L, 15G–I, 16B, 17C,G, 18E)
Tetraglossula deltivaga Ogloblin, 1948, 166. Type data: holotype MLP ♂ (examined); type locality: Argentina, Buenos Aires. Leioproctus (Tetraglossula) deltivagus; generic combination by Michener 1989.
Diagnosis. This species and T. bigamica are distinct from the remaining Tetraglossula species for the small to moderate body size (<10 mm; usually 7–9.5 mm), dark metasoma, and the pale to whitish pubescence on mesosoma. Punctation on disc of scutum of female (Fig. 16 B) evenly sparse (moderately sparse, but denser near median and parapsidial lines in T. bigamica); metapostnotum of T. deltivaga approximately as long as metanotum (Fig. 17 C,G), whereas in T. bigamica it is longer than metanotum (Fig. 17 B,F). The male S7 of T. deltivaga has a narrow basal lobe (Fig. 14 F; see comments below), a shape comparable to that of T. meloi; apical lobe with distinctively long and plumose setae particularly on lateral margin (apical margin of apical lobe of T. meloi also with several of these distinct setae). Light bluish to whitish hues can be noticed on the metasomal terga of most specimens of T. deltivaga, a characteristic observed in T. anthracina as well.
Male genitalia and hidden sterna S6–S8: Figs 14 I–L, 15G–I. Line drawings of the male Tetraglossula deltivaga type (S6–S8 and genitalia) can be found in Ogloblin (1948: Figs 5–7). Basal lobe of S7 (Fig. 14 J) narrow, with robust setae along the middle and apical edge of this sclerite, little superposed with the apical lobe, aligned with the axis of the apodeme; apical lobe with distinctively long and plumose setae particularly on lateral margin; medial sclerotized region positioned proximally to apical and basal lobes of S7 moderately long (shorter than in T. anthracina [Fig. 14 B], longer than in T. bigamica and T. fucosa [Fig. 14 F,M]). Apical lobe of S8 slightly longer than disc of S 8 in profile (Fig. 14 L).
Comments. There are five specimens supposedly studied by Ogloblin deposited in MLP, but none with an original type label. Among those, the holotype is recognizable because it the only male in that series and it was collected in the type locality (i.e., Dique Lujan); this specimen has the genitalia dissected.
Distribution (Fig. 19): BRAZIL: Minas Gerais (Volta Grande [UFMG:1]), São Paulo (Campinas [UFMG:1], Itirapina [RPSP:18], Mirassol [RPSP:1], Ribeirão Preto [RPSP:230], São Carlos [MZUSP:2, SEMC:1], Serrana [RPSP:1], Teodoro Sampaio [RPSP:2]); ARGENTINA: Buenos Aires [MLP:5]. These records indicate a major disjunction in the distribution of T. deltivaga between areas in southeastern Brazil (mainly savannah habitats in the domain of Cerrado) and Buenos Aires province in Argentina (Pampas domain). Analysis of genitalia and hidden sterna from the most extreme distribution records did not indicate significant morphological differences among specimens herein treated as T. detivaga.
description: Published as part of Almeida, Eduardo A. B. & Gibran, Nadia S., 2017, Taxonomy of neopasiphaeine bees: review of Tetraglossula Ogloblin, 1948 (Hymenoptera: Colletidae), pp. 521-544 in Zootaxa 4303 (4) on pages 531-534, DOI: 10.11646/zootaxa.4303.4.5, http://zenodo.org/record/841526