Leptopezella masneri Sinclair & Cumming, 2007,

Barros, Luana Machado, Freitas-Silva, Rafael A. P. & Ale-Rocha, Rosaly, 2019, First records of Leptopezella Sinclair & Cumming (Diptera: Hybotidae: Ocydromiinae) from Brazil, Zootaxa 4615 (2), pp. 397-400: 397-400

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Leptopezella masneri Sinclair & Cumming, 2007


Leptopezella masneri Sinclair & Cumming, 2007  ( Figs 1–4View FIGURES 1–3View FIGURE 4)

Diagnosis. Head, thorax and abdomen shiny; occiput mostly shiny, with grey tomentum near middle; hypandrium small with truncate apex; left surstylus long and strongly arched; hypoproct with hook-like projection from right side; phallus lacking spines.

Type material examined. PARATYPE. BOLIVIA. La Paz: Chulumani, Apa-Apa , 1800m, 16°22′S. 67°30′W, 1– 4.v.1997, L. Masner s.s. B-09 [1♂, 1♀, CNC]GoogleMaps  .

Additional material examined. BRAZIL. Espírito Santo: Divino de S[ão] Lourenço, P [arque] N[acional] Ca- paraó 1500 m, 20°24′30″S 41°47′06″W, 15–23.iii.2013, C.O. Azevedo & F.G. Braga, Malaise [1♀, MZUSP]GoogleMaps  ; Castelo, P [ar]q[ue] Est[adual] Pomo [sic. Forno] Grande 20°31′9″S 41°5′12″W, 1200 m, 25.ix.–2.x.2013, Malaise, D.N. Bar- bosa [1♀, MZUSP]GoogleMaps  . Minas Gerais: Cabo Verde, Fazenda da Cata – 598 m, 21°27′11.04″S 46°20′52.8″W, Luz – mata, 07.ix.2006, Amorim, Ribeiro, Falaschi & Oliveira col., BIOTA-FAPESP [1♀, MZSP]GoogleMaps  ; Borda da Mata   GoogleMaps, Sítio do Sr.   GoogleMaps Nor- berto, 10.vi.2010, Malaise iv, Airton & Cassia [1♀, 1♂, MZUSP]. Rio de Janeiro: Itatiaia, Maromba , ix.[1]946, Barreto col. [1♀, MZRJ]  . São Paulo: Salesópolis, Boracéia, 13.ix. [1]947, Travassos, Ventel, J. Lane & Rabello col. [1♂, MZSP]; São Paulo, Jaraguá   GoogleMaps, viii.[19]85, J. Lane coll. [4♀, MZSP]  ; [Barra do] Turvo   GoogleMaps, viii.[19]53, J. Lane col. [1♀, MZSP]; Campos do Jordão   GoogleMaps, P [arque] E[stadual] C[ampos] do Jordão, 7.x.2010, Malaise iv, Airton & Cássia cols. [1♀, MZUSP]  ; idem, 17.v.2010, Malaise, N.M. Perioto [2♀, MZUSP]  ; S[ão] Luis [sic. Luiz] do Paraitinga, P [arque] E[stadual] S[erra do] M[ar], Núcleo Sta. Virgínia, 23°19′27″S 45°05′38″W, 20.xii.2011, Malaise, NW Perioto [2♀, MZUSP]GoogleMaps  . Paraná: Ponta Grossa, Vila Velha , Reserva IAPAR BR 376 [km 83, 25°14′S 50°03′W, ref. Marinoni & Dutra (1993)], 01.xii.1986, Lev [antamento] Ent [omológico] PROFAUPAR, Lâmpada [3♂, 5♀, DZUP]GoogleMaps  ; São José dos Pinhais, Serra do Mar   GoogleMaps, i.1985, Malaise, J.A. Rafael [1♀, INPA]; idem, iv.1995 [3♀, INPA]; Piraquara , Mananciais da Serra do Mar   GoogleMaps, 25°29′46″S 48°58′54″W, 01.xi.2007, Varredura, J.A. Rafael col. [1♀, INPA]  . Santa Catarina: [Seara,] Nova Teutônia, 300–500 m, 27°11′S 52°23′W, xi.1977, F. Plaumann [1♀, MZSP]  . Geographical distribution (Fig. 4). Bolivia (Sinclair & Cumming 2007) and Brazil* (Espírito Santo, Minas Gerais, Paraná, Rio de Janeiro, Santa Catarina, São Paulo). Remarks. Females have the frons wider (wider than anterior ocellus at mid-height) than males (as wide as anterior ocellus at mid-height). Some Brazilian specimens have the antennae entirely pale or brown, probably due to previous alcohol storage. Leptopezella  is known to occur in the Neotropical Region from Bolivia and Southeast and South Brazilian records of L. masneri  . Also, we are aware of one female of Leptopezella  from Salta, Argentina ( Sinclair & Cumming 2000), housed in the University of Guelph, Canada (B. Sinclair, pers. comm., Feb. 2019) and one female collected about 40 km north of Manaus, North Brazil, both lacking specific identification, but indicating the occurrence of the genus in those localities ( Fig. 4View FIGURE 4).View FigureView Figure

The genus apparently prefers moist or damp forest undergrowth and it has been collected with sweep nets ( Sinclair & Cumming 2007), but also with flight interception and light traps. When considering the updated records from North, South and Southeast Brazil, the genus has been collected at a broad altitude range, from almost 1,800 m in Bolivia to about 60 m in Manaus ( Brazil), and several landscapes, such as savanna-like vegetation (Vila Velha, Brazil), closed canopy forests like the Amazon rainforest, and in the wet temperate rainforests of Australia ( Sinclair & Cumming 2007).

Most of the genera of Ocydromiinae  are well characterized, but the generic relationships remain poorly understood, and brief discussions can be found in Sinclair & Cumming (2000) and Ale-Rocha & Freitas-Silva (2014). However, some questions remain, such as the validity of Hoplopeza Bezzi and Scelolabes Philippi ( Sinclair & Cumming 2000)  , and the possible paraphyly of Oropezella Collin  with respect to Chvalaea Papp & Földvári ( Ale-Rocha & Freitas-Silva 2014)  .

Leptopezella  seems to belong to a hypothetical group within Ocydromiinae  that includes Chvalaea, Oropezella and  Stylocydromia Saigusa  , sharing the slender cuneiform wings ( Sinclair & Cumming 2007) with the anal lobe very reduced and vein R 4+5 curved posteriorly. The wing of Abocciputa Plant  has also a poorly developed anal lobe, but the wing widens near the apex. Except for the absence of crossvein dm-m, Leptopezella  is similar to Chvalaea by the presence of a weak pterostigma and shape of the veins R 1 and M 4. Leptopezella  exhibits an intermediate length of cell cua, between the very short condition observed in Chvalaea and the long condition present in Oropezella and Stylocydromia.

In contrast to all these genera, crossveins r-m and bm-m in Leptopezella  are positioned very closely, similar to what is found in some Tachydromiinae  , while in Abocciputa, Chvalaea and Oropezella  bm-m is basal to r-m, both separated by a short segment of M 1+2. However, Leptopezella  is not related to Tachydromiinae  since the phallus is biarticulated and the ejaculatory and ventral apodemes are absent ( Sinclair & Cumming 2006). All the other genera included in this hypo- thetical Ocydromiinae  group also have a long vein Rs, contrary to what is observed in Leptopezella  , with a single known exception in Oropezella (i.e., O. bicolor Ale-Rocha & Freitas-Silva, 2014).

Male terminalia of Leptopezella  are similar to Chvalaea with a narrow dorsal connection of the epandrial lamellae, lamellae lacking projections, narrow unbranched surstyli, hypandrium with apical margin convex, and phallus with the apical segment very long. Presently no Chvalaea species are known that bear a spine on the hypoproct and the shape of the phallus among the Australian species of Leptopezella  is also unique in Ocydromiinae  . Given the possible close relationship of Leptopezella  with Oropezella and Chvalaea, improved knowledge about diversity and morphology of Leptopezella  will help elucidate the validity and relationship of Chvalaea and Oropezella.


Canadian National Collection of Insects, Arachnids, and Nematodes


Museu de Zoologia da Universidade de Sao Paulo


Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo


Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure


Instituto Nacional de Pesquisas da Amazonia