Hoplitimyia undetermined

Fachin, Diego Aguilar, Zichinelli, Marcela Maria Parada & Barrett, Bolívar Rafael Garcete, 2022, An illustrated checklist of Stratiomyidae (Diptera: Brachycera) from Paraguay with three new synonyms and 22 new records of species for the country, Zootaxa 5190 (1), pp. 1-55 : 32

sp. 1 ( Figs 95–97 , 103–105 )

Material examined. Paraguay: 1 ♂, Dpto. [Departamento], Amambay, Parq. Nac. [Parque Nacional] Cerro Corá , 31.x.1983, T. Bonaoe ( MNHNPY; MNHNP-HX 2049) . 1 ♂, Asunción, J. [Jardín] Botánico , 25.ix.1992, A. Aguilar ( MNHNPY; MNHNP-HX 2051) ; 1 ♀, Jardín Botánico , 18.vii.1994 ( MNHNPY; MNHNP-HX 2054) . 3 ♂, 1 ♀, Boquerón, Mariscal [José Félix] Estigarribia , 22.03°S 60.59°W, 10.i.2016, B. & N. Garcete coll. ( MNHNPY; MNHNP-HX 2037, 2042–2044) . 1 ♂, Dpto. [Departamento] Chaco [currently Alto Paraguay], Parq. Nac. Def. d/ Chaco [Parque Nacional Defensores del Chaco], 16.ix.1982, H. Ferreira C. ( MNHNPY; MNHNP-HX 2052) . 1 ♂, Central Dept. [Departamento], Areguá , 14.xi.1980, D. Lowrie ( MNHNPY; MNHNP-HX 2050) . 1 ♀, Cordillera Depto. [Departamento], Dist. [Distrito] Caacupé , Cabañas , 07.v.1980, R.D. Cave colr [collector], from the collection of Larry G. Bezark ( CSCA) . 1 ♀, Cordillera, Piribebuy, Cruce Piribebuy, Ruta 2, 25.377°S 57.043°W, 20.ii.2016, B. & N. Garcete colls ( MNHNPY; MNHNP-HX 2039) . 6 ♂, 4 ♀, Cordillera, Tobatí, Cerro Tobatí , 25.281°S 57.091°W, 16.i.2016, B. Garcete coll. ( MNHNPY; MNHNP-HX 2034–2036, 2038, 2040–2041, 2045–2048) . 1 ♀, San Pedro, [Estancia] Carumbé , 10.i–10.ii.1973, Col. R. Golbach ( MZUSP) . 1 ♂, Dpto. [Departamento] San Pedro, Puerto Ybapobó, Bosque denso de galeria, entre zonas de palmares, 9:00 hs a 9:30 hs, 27.x.1991, B. Barrios ( MNHNPY; MNHNP-HX 2053) .

Distribution. Paraguay (Alto Paraguay: Parque Nacional Defensores del Chaco; Amambay: Parque Nacional Cero Corá; Asunción: Jardín Botánico; Boquerón: Mariscal José Félix Estigarribia; Central: Areguá; Cordillera: Caacupé, Piribebuy, Tobatí; San Pedro: Estancia Carumbé, Puerto Ybapobó).

Comments. Differently from typical males and females of H. mutabilis ( Fabricius, 1787) , in which the abdominal tergites 4–5 are entirely yellow or nearly so (according to James 1934: 443) and the abdominal tergites 1–3 are completely black, this species has also a yellow transverse band posteriorly on tergite 3 in females, which can be interrupted medially (see, for example, a female in: https://www.inaturalist.org/observations/67455941) or not ( Fig. 96 ), and in males, as well, there are yellow posterior bands on tergites 2–3, which are usually narrow ( Figs 95 and 103 ), but in two males (in one from Alto Paraguay, Parque Nacional Defensores del Chaco and in one from San Pedro, Puerto Ybapobó), the pair of posterior bands extend towards the anterior margin ( Figs 104–105 ). James & McFadden (1979: 12) mentioned that, rarely, some specimens of H. mutabilis from southern Brazil and Argentina could have narrow posterior bands, also interrupted medially, on tergite 3. As the Hoplitimyia species have not been revised and the specimens were not dissected, we are not sure if these specimens correspond to a range of color variation of H. mutabilis or should be part of a distinct species, maybe H. subalba ( Walker, 1854) , which is known by having, at least in males, a pair of yellow narrow posterior bands on tergites 2-3 ( James & McFadden 1979: 11, as Stratiomys fasciata Fabricius, 1787 ). At least two other species of the genus occur in the southern portion of the continent ( Woodley 2001: 266) for which we have not seen the type specimens or additional pictures, so we are keeping this species as morphospecies until the intraspecific variation among the species can be better understood.

Figures

FIGURES 85–96. Stratiomyid species, habitus dorsal. 85. Merosargus golbachi James in James & McFadden, 1971, male. 86. Merosargus longiventris (Enderlein, 1914), male. 87. Merosargus obscurus (Wiedemann, 1830), female. 88. Merosargus stigmaticus (Lindner, 1949), male. 89. Microchrysa bicolor (Wiedemann, 1830), male. 90. Ptecticus testaceus (Fabricius, 1805), male. 91. Sargus fasciatus Fabricius, 1805, male. 92. Sargus thoracicus Macquart, 1834, female. 93. Sargus sp. 1, female. 94–95. Hoplitimyia sp. 1, male and female, respectively. 96. Nothomyia sp. 1, female. Scale bar, 1 mm.

FIGURES 97–102. Stratiomyid species, habitus dorsal. 97. Odontomyia fiebrigi Lindner, 1976, female. 98. Promeranisa nasuta (Macquart, 1850), male. 99–100. Psellidotus sp. 1, male and female, respectively. 101–102. Psellidotus sp. 2, male and female, respectively. Scale bar, 1 mm.

FIGURES 103–114. Stratiomyid species, abdomen dorsal view and habitus dorsal and lateral. 103–105. Hoplitimyia sp. 1, male. 106. Chrysochlorina albipes James, 1939, male. 107. Cyphomyia leucocephala Wiedemann, 1819, female. 108–109. Cyphomyia wiedemanni Gerstaecker, 1857, male. 110–111. Leucoptilum plaumanni James, 1943, female. 112–113. Gowdeyana vitrisetosus (Lindner, 1935), female. 114. Myxosargus sp. 1, male. Photographs 106–114 © Jean-Michel Maes.