Tetraglossula deltivaga Ogloblin, 1948

Almeida, Eduardo A. B. & Gibran, Nadia S., 2017, Taxonomy of neopasiphaeine bees: review of Tetraglossula Ogloblin, 1948 (Hymenoptera: Colletidae), Zootaxa 4303 (4), pp. 521-544 : 531-534

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 .

Figures

FIGURE 5. Allotype (♀) of Leioproctus (Tetraglossula) fucosus Michener, 1989 [SEMC]: (A) lateral habitus; (B) dorsal habitus; (C) labels attached to the specimen; (D) frontal view; (E) mesosoma, dorsal view; (F) metasoma, dorsal view. Ownership rights to these images and their copyright belong to SEMC (Snow Entomological Museum Collection). Scale bars = 1.0 mm.

FIGURE 6. Holotype (♂) of Bicolletes franki Friese, 1908 [ZMB]: (A) lateral habitus; (B) dorsal habitus; (C) frontal view; (D) right forewing; (D) metasoma, dorsal view; (E) labels attached to the specimen. Scale bars = 1.0 mm.

FIGURE 7. Tetraglossula franki (Friese, 1908), ♀, Argentina: Buenos Aires, Tandil [MLP]: (A) lateral habitus; (B) dorsal habitus; (C) frontal view; (D) labels attached to the specimen. Scale bars = 1.0 mm.

FIGURE 10. Holotype (♂) of Tetraglossula deltivaga Ogloblin, 1948 [MLP]: (A) dorsal habitus (scale bar = 1.0 mm); (B) frontal view; (C) detail of dorsal view; (D) label attached to the specimen.

FIGURE 11. Paratype (♀) of Tetraglossula deltivaga Ogloblin, 1948 [MLP]: (A) lateral habitus (scale bar = 1.0 mm); (B) dorsal habitus; (C) labels attached to the specimen; (D) frontal view; (E) detail of dorsal habitus.

FIGURE 12. Tetraglossula deltivaga Ogloblin, 1948, ♂, from Ribeirão Preto, São Paulo, Brazil [RPSP- 121836]: (A) lateral habitus; (B) dorsal habitus; (C) frontal view; (D) labels attached to the specimen. Scale bars = 1.0 mm.

FIGURE 13. Tetraglossula deltivaga Ogloblin, 1948, ♀, Ribeirão Preto, São Paulo, Brazil [RPSP- 121831]: (A) lateral habitus; (B) dorsal habitus; (C) frontal view; (D) metasoma, dorsal view; (E) labels attached to the specimen. Scale bars = 1.0 mm.

FIGURE 14. Male metasomal sterna VI (ventral view), VII (dorsal view), and VIII (dorsal and lateral views) of Tetraglossula spp.: (A – D) T. anthracina (Michener) [specimen from Brazil, MG, Santana do Riacho-UFMG IHY- 4683]; (E – H) T. bigamica (Strand) [specimen from Brazil, RS, Rosário do Sul-RPSP- 162186]; (I – L) T. deltivaga Ogloblin [Brazil, SP, Ribeirão Preto- RPSP]; (M – P) T. fucosa (Michener) [Brazil, SP, Ribeirão Preto-RPSP]; (R – U) T. meloi Almeida & Gibran, sp. n. [Holotype, RPSP # 951577]. ALb, apical lobe of S 7; BLb, basal lobe of S 7; LLb, lateral lobe of S 7; LPr, lateral process of S 8; MPr, median process of S 8; scale bars = 0.2 mm. Scale bars = 0.2 mm.

FIGURE 16. Punctation on scutum of Tetraglossula spp., dorsal view: A, T. anthracina (Michener), ♀ [specimen from Itirapina, SP, Brazil-RPSP]; B. T. deltivaga Ogloblin, ♀ [specimen from Itirapina, SP, Brazil-RPSP- 0955 FL]; C. T. franki (Friese), ♀ [specimen from Argentina: Buenos Aires, Tandil-MLP]. Not to scale.

FIGURE 17. Metanotum and metapostnotum of Tetraglossula spp., postero-dorsal view: A. T. anthracina (Michener), ♂ [specimen from Belo Horizonte, MG, Brazil-UFMG- 1402205]; B. T. bigamica (Strand), ♂ [specimen from Corumbá, MT, Brazil-RPSP]; C. T. deltivaga Ogloblin, ♂ [specimen from Ribeirão Preto, SP, Brazil-RPSP]; D. T. meloi Almeida & Gibran, sp. n., ♂ [specimen from Santo Antonio, BA, Brazil-RPSP- 951577, Holotype]; E. T. anthracina (Michener), ♀ [specimen from Santana do Riacho, MG, Brazil-UFMG- 23000]; F. T. bigamica (Strand), ♀ [specimen from Porto Murtinho, MS, Brazil-RPSP- 12.0728]; G. T. deltivaga Ogloblin, ♀ [specimen from Ribeirão Preto, SP, Brazil-RPSP]; H. T. franki (Friese), ♀ [specimen from Argentina: Buenos Aires, Tandil-MLP]. Red bars indicate approximate mid-length of metapostnotum (left) and metanotum (right). Not to scale.

FIGURE 19. Geographical distribution of Tetraglossula (left) indicated by the minimum convex polygon constructed using the individual occurrence points for all six species of the genus; individual records for each species shown on the maps on the right.