Noctiliostrebla pantaneira, Alcantara & Graciolli & Nihei, 2019

Alcantara, Daniel Maximo Correa, Graciolli, Gustavo & Nihei, Silvio S., 2019, Revision of Noctiliostrebla (Diptera: Streblidae), parasites of bulldog bats (Chiroptera: Noctilionidae: Noctilio), Zootaxa 4560 (3), pp. 483-521 : 511-513

Noctiliostrebla pantaneira sp. n.

( Figs 2B , 13 , 17B )

Noctiliostrebla maai: Dick & Gettinger (2005 : 1020; part, survey, misidentification); Presley & Willig (2008: 80; tab. 2; part, misidentification); Presley (2011: 835; tab. 1; part, misidentification); Presley (2012: 5–6; tabs 1–2; part, misidentification).

Diagnosis. The pattern of setae on the connexivum of the female is very similar to that found in N. dubia , but it is mainly differentiated by the few setae in the middle of the bare areas on the median dorsal connexivum. The female sternite II is weakly emarginate compared to the shape observed in N. dubia and N. traubi . The male is easily recognized by the set of macrosetae anterior to sternite VI, and sternite II weakly emarginate.

Description. Measurements (mm, n=20, 10 ♂♂, 10 ♀♀). HFL: ♂ 0.45 (0.43–0.47), ♀ 0.52 (0.51–0.55); SL: ♂ 0.51 (0.49–0.53), ♀ 0.56 (0.55–0.58); TL: ♂ 0.49 (0.47–0.51), ♀ 0.52 (0.51–0.55); WL: ♂ 0.29 (0.27–0.31), ♀ 0.30 (0.28–0.33); WW: ♂ 0.17 (0.15–0.18), ♀ 0.18 (0.17–0.20).

Thorax. Mesepimeron with 1–2 setae on each side. Wing with 1–3 setae on median vein. Metasternum ( Fig. 13B, E ) like in N. traubi .

Female abdomen. Syntergite I+II ( Fig. 13A ) like in N. maai , except 35–56 setae on each plate of lateral lobe, and inner lateral margin moderately inclined. Dorsal connexivum ( Fig. 13A ) like in N. dubia , except as follows: with few short setae at middle of bare areas; row posterior to spiracle VI with one pair of setae in the middle as long as setae on cluster of setae around spiracle III. Lateral connexivum with free cluster of minute setae below spiracle III. Tergite VII ( Fig. 13A, C ) like in N. dubia , except 4–7 setae on each plate. Sternite II ( Fig. 2B , 13B ) with posterior margin weakly emarginate, and longest lateral setae twice as long as shortest median setae; discal setae not in row. Sternite VII ( Fig. 2B ) subtriangular and longer than wide; 8–13 setae on each plate. Epiproct ( Fig. 13A, C ) like in N. dubia .

Male abdomen. Syntergite I+II like in N. dubia , except 37–71 setae on each plate of lateral lobe. Ventral connexivum with segmental setae longer and thicker than other ventral setae but not twice the length, easily distinguishable. Sternite II ( Fig. 13E ) with posterior margin weakly emarginate, and longest lateral setae longer than shortest median setae but not twice the length. Hypopygium ( Fig. 13 D–E) with ventral setae like in N. dubia ; sternite VI straight or slightly curved, narrower and longer than half length of cercus; cluster of macrosetae anterior of sternite VI, 1–3 macrosetae longer than dorsal macrosetae of hypopygium but not twice the length. Genitalia ( Fig. 13 F–H) like in N. guerreroi sp. n., except gonopod wider than in N. guerreroi sp. n., and dorsal margin of aedeagus similar to that of N. falsispina sp. n.

Distribution. Brazil (Mato Grosso, Mato Grosso do Sul), Paraguay ( Fig. 17B ).

Type locality. Brazil, Mato Grosso do Sul, Corumbá, Base de Estudos do Pantanal .

Host. Noctilio albiventris .

Type material. HOLOTYPE ♀: Brazil: “ HOLOTYPE ♀ / Noctiliostrebla pantaneira / Alcantara, Nihei & Graciolli”, “MZSP / Host. N. albiventris Desmarest / Brazil, state of Mato Grosso do Sul, Corumbá, Base de Estudos do Pantanal—UFMS [= Universidade Federal do Mato Grosso do Sul] / 19°34’48.0”S, 57°01’15.1”W / 03.iii.2013 / D.M.C. Alcantara & C.S. Souza leg. / BEP88” ( MZSP) . PARATYPES (89 ♂♂, 76 ♀♀): Brazil : 1 ♂, 5 ♀♀, Mato Grosso, Poconé, Pousada Rio Clarinho , 16°36’02.1”S, 56°43’46.7”W, 19.i.2013, D. M.C. Alcantara, M. D. Santis & M.S. Sato leg., on N. albiventris ( MZSP) ; 1 ♀, Mato Grosso do Sul, Corumbá, Fazenda Arara Azul , 19°15’81”S, 57°03’44”W, 19.v.2007, J.M. Longo leg., on N. albiventris ( ZUFMS); 4 ♂♂, 8 ♀♀, Mato Grosso do Sul, Corumbá, Forte Coimbra, 19°54’49.6”S, 57°47’19.4”W, 4.iv.2008, M.O. Bordignon leg. ( ZUFMS); 1 ♂, 1 ♀, Mato Grosso do Sul, Corumbá, Passo do Lontra, Base de Estudos do Pantanal, 19°34’29”S, 57°00’53”W, 14.v.2007, J.M. Longo leg., on N. albiventris ( ZUFMS); 5 ♂♂, 5 ♀♀, same data as previous except 19°34’51.3”S, 57°01’13.5”W, 15.v.2007, ( ZUFMS); 1 ♂, 1 ♀, same data as previous except 19°34’51.3”S, 57°01’13.5”W, 15.v.2007, on Artibeus planirostris Spix ( Chiroptera : Phyllostomidae ) [doubtful record, see further on] ( ZUFMS); 1 ♂, 2 ♀♀, same data as previous except 19°34’38.9”S, 57°01’09.1”W, 28.x.2008, M.O. Bordignon leg. ( ZUFMS); 4 ♂♂, 3 ♀♀, Mato Grosso do Sul, Corumbá, Passo do Lontra, Base de Estudos do Pantanal, 27.i.2011, C.L. Silva leg., on N. albiventris ( ZUFMS); 2 ♂♂, 1 ♀, same data as previous except 1.iii.2011 ( ZUFMS); 10 ♂♂, 6 ♀♀, same data as previous except 25.iv.2011 ( ZUFMS); 2 ♂♂, 4 ♀♀, same data as previous except 26.iv.2011 ( ZUFMS); 26 ♂♂, 19 ♀♀, same data as previous except 27.iv.2011 ( ZUFMS); 3 ♂♂, same data as previous except 28.iv.2011 ( ZUFMS); 18 ♂♂, 10 ♀♀, same data as previous except 24.vi.2011 ( ZUFMS); 1 ♂, 1 ♀, same data as holotype ( DZUP); 1 ♂, 1 ♀, same data as holotype ( MZSP); 1 ♂, 1 ♀, same data as holotype ( NHMUK); 1 ♂, 1 ♀, same data as holotype ( ZMHU); 1 ♂, 1 ♀, same data as holotype except 27.ii.2013 ( MZSP); 1 ♂, 1 ♀, same data as holotype except 27.ii.2013 ( MPEG); Paraguay: 1 ♂, 1 ♀, Misiones, Rio Antinguy, 80m, 27°20.67’S, 56°40.52’W, 15.i.1996, R. D. Owen & M.R. Willig leg., on N. albiventris ( FMNH); 4 ♂♂, 3 ♀♀, Presidente Hayes, Estancía La Victoria , 120m, 23°39.03’S, 58°34.79’W, 29.vii.1995, R. D. Owen & M.R. Willig leg., on N. albiventris ( FMNH).

Etymology. A noun in apposition, the specific epithet “ pantaneira ” refers to the traditional inhabitants of the Pantanal region, where the holotype and most of the paratypes are from.

Remarks. In his comments about N. dubia, Wenzel (1976) mentioned two females that have many features in common with N. pantaneira sp. n. However, the females he examined were from the state of Amazonas, Brazil, and do not match the geographical records of N. pantaneira sp. n. Some of the specimens studied by Dick & Gettinger (2005), Presley & Willig (2008) and Presley (2011, 2012) were identified by us as N. pantaneira sp. n. and were included in the type series. Many specimens of N. pantaneira sp. n. were collected on the same host individuals as N. morena sp. n.

Figures

FIGURE 2. General morphology of abdomen of female Noctiliostrebla spp. A. External morphology of syntergite I+II of N. morena sp. n. (holotype, MZSP) in dorsal view. B. External morphology of abdomen of N. pantaneira sp. n. (holotype, MZSP) in ventral view. C. External morphology of posterior portion of abdomen of N. morena sp. n. (paratype from Mato Grosso do Sul, Base de Estudos do Pantanal, MZSP) in posterior view. D. External morphology of posterior portion of abdomen of N. morena sp. n. (holotype, MZSP) in dorsal view. Abbreviations: a.l., anterior lobe; cer., cercus; epi., epiproct; epi.a.l., anterior lobe of epiproct; i.l.m., inner lateral margin; l.l., lateral lobe of syntergite I+II; lg.hy., larger hypoproct; seg.s.III, segmental seta III; seg.s.IV, segmental seta IV; seg.s.V, segmental seta V; seg.s.VI, segmental seta VI; sml.hy., smaller hypoproct; sp.I, spiracle I; sp.II, spiracle II; st.II, sternite II; st.VII, sternite VII; tg.VII, tergite VII.

FIGURE 13. Noctiliostrebla pantaneira sp. n., holotype ♀ (MZSP) and ♂♂ paratypes (Brazil, Mato Grosso do Sul, Base de Estudos do Pantanal, MZSP). A. Female abdomen in dorsal view. B. Detail of posterior portion of female thorax and abdomen in ventral view, showing metasternal lobe and sternite II. C. Female tergite VII (with setae insertions) and epiproct in dorsal view. D. Detail of male abdomen in ventrolateral view, showing hypopygium. E. Detail of posterior portion of male thorax and abdomen in ventral view, showing metasternal lobe, sternite II and hypopygium. F. Male genitalia in lateral view. G. Distal portion of gonopod in lateral view. H. Distal portion of aedeagus in lateral view.

FIGURE 17. Distributional maps of Noctiliostrebla species (continued). A. N. morena sp. n. B. N. pantaneira sp. n. C. N. caissara sp. n.