Photinopygus chrysopygus ( Nordmann, 1837 )

Chatzimanolis, Stylianos, 2023, A revision of the genus Photinopygus Chatzimanolis (Staphylinidae: Xanthopygina), Zootaxa 5292 (1), pp. 1-100 : 32-35

Photinopygus chrysopygus ( Nordmann, 1837)

( Figs. 47 , 64–70 )

Staphylinus chrysopygus Nordmann, 1837: 45 .

Xanthopygus chrysopygus (Nordmann) ; Kraatz 1857: 539.

Photinopygus chrysopygus (Nordmann) ; Chatzimanolis 2021: 91.

Type material. Lectotype, here designated, male with labels: “Type” / “5913” / “Hist.-Coll. ( Coleoptera ) Nr. 5913 Staphylinus chrysopygus Nordm. Brasil.von Olfers Zool.Mus.Berlin”/“ Syntype Staphylinus chrysopygus Nordmann 1837 labelled by MFNB 2019” / “ Lectotype Staphylinus chrysopygus Nordmann des. Chatzimanolis 2020”. In the collection of MFNB. Paralectotype, here designated, female, with labels: “Type” /“Hist.-Coll. ( Coleoptera ) Nr. 5913 Staphylinus chrysopygus Nordm. Brasil. von Olfers Zool. Mus. Berlin” / “ Syntype Staphylinus chrysopygus Nordmann 1837 labelled by MFNB 2019” / “ Paralectotype Staphylinus chrysopygus Nordmann des. Chatzimanolis 2020”. In the collection of MFNB.

Additional Materials. ARGENTINA: Misiones: El Soberbio [-27.18°, -54.13°], ii.1985, S. Bolle leg., FMNHINS4030569 (1 ♀ FMNH) ; San Ignacio [-27.26°, -55.54°] Le Moult leg., Bernhauer coll., FMNHINS3975884 (1 ♀ FMNH) ; unknown locality, Le Moult leg., Bernhauer coll., FMNHINS3975883 (1 ♁ FMNH); BRAZIL: Espírito Santo: Castelo [-20.60°, -41.19°], xi.1976, M. Alvarenga (1 ♀ CNC) ; unknown locality, Sharp coll. (1 ♁ NHMUK); unknown locality, Schmidt leg., Fry coll., Bernhauer coll., FMNHINS4030588 (1 ♀ FMNH) ; Minas Gerais: Itabirito [-20.25°, -43.80°], 1450 m, xii.1998, F.Z. Vas-de-Mello leg., FMNHINS3975561 (1 ♀ FMNH) ; Poços de Caldas [-21.79°, -46.56°], 1966, O. Leoncini leg. (1 ♀ CNC) ; Paraná: Caviuna [-23.30°, -51.37°], ix.1946, A. Maller leg. (4 ♀ AMNH) ; Matelandia [-25.25°, -53.98°], i.[19]62, A. Moller leg., Scheerpeltz coll. (1 ♁ NMW) ; Rio de Janeiro: Corcovado [-22.95°, -43.21°], ix–x.1969, Alvarenga, Seabra leg. (1 ♀ AMNH) ; Petrópolis [-22.51°, -43.18°], H. Schulz leg., Scheerpeltz coll. (1 ♀ NMW) ; Teresópolis [-22.412°, -42.966°], F. Schneider leg., Bernhauer coll., FMNHINS3975877 (1 ♁ FMNH) ; Rio Grande do Sul: São Leopoldo [-29.76°, -51.15°], F. Schneider leg., Scheerpeltz coll. (3 ♁, 1 ♀ NMW) ; unknown locality, Pohl leg., Bierig coll. (1 ♀ AMNH) ; Santa Catarina : Hansa Humboldt [-26.43°, -49.24°], viii.1939, E. Reitter leg., Scheerpeltz coll. (3 ♁, 2 ♀ NMW; 1 ♁ NHMD) ; same locality, x.1944, A. Maller leg. (1 ♁, 1 ♀ AMNH) ; same locality, iv.1948, A. Maller leg. (1 ♁ AMNH) ; same locality, xi.1944, A. Maller leg. (1 ♁ AMNH) ; same locality, xi.1945, A. Maller leg. (1 ♀ AMNH) ; same locality, i.1946, A. Maller leg. (1 ♁ AMNH) ; same locality, i.1949, A. Maller leg. (1 ♀ AMNH) ; same locality, iii.1949, A. Maller leg. (1 ♁, 1 ♀ AMNH) ; Joinville [-26.32°, -48.84°], xii.1920, Schmith leg., FMNHINS3975532 (1 ♁ FMNH) ; Mafra [-26.117°, -49.8°], xii.1939, J. Guerin leg., Bierig coll., FMNHINS3975534 (1 ♀ FMNH) ; Nova Teutônia [Seara] [-27.25°, -50.33°], 16.x.1938, F. Plaumann leg. (1 ♀ MFNB) ; same locality except 1.xi.1938, Bernhauer coll., FMNHINS3975880 (1 ♁ FMNH) ; same locality except 19.xi.1938 (1 ♀ MFNB) ; same locality except 4.xi.1938 (1 ♀ MFNB) ; same locality except 2.x.1939 (1 ♀ MFNB) ; same locality, xii.[19]68, F. Plaumann leg., Newton coll., FMNHINS3975565 (1 ♁ FMNH) ; same locality, ix.[19]67, under bark, F. Plaumann leg., Newton coll., FMNHINS3975568 (1 ♀ FMNH) ; same locality, E. Ross leg., Scheerpeltz coll. (1 ♁ NMW) ; same locality, Bernhauer coll., FMNHINS3975881, FMNHINS3975879 (1 ♁, 1 ♀ FMNH) ; same locality, Bierig coll., FMNHINS3975515, FMNHINS3975514, FMNHINS3975516, FMNHINS3975518, FMNHINS3975517 (5 ♀ FMNH) ; same locality, iii.[19]44, F. Plaumann leg., Bierig coll., FMNHINS3989873 (1 ♀ FMNH) ; Rio Laeiss [José Boiteux] [-26.96°, -49.63°], A. Hepp leg., Blackwelder coll. (1 ♀ AMNH) ; Rio Negrinho [-26.25°, -49.52°], i.1926, K. Muller leg., Bierig coll., FMNHINS3975531 (1 ♀ FMNH) ; unknown locality (1 ♀ SDEI) ; unknown locality, Lüderwaldt leg., FMNHINS3975878 (1 ♀ FMNH) ; São Paulo: São Paulo [-23.55°, -46.63°], 1911, E. Ross leg., Scheerpeltz coll. (1 ♀ NMW) ; same locality, Bierig coll., FMNHINS3975508, FMNHINS3975509 (2 ♀ FMNH) ; Serra da Bocaina [NP], São José do Barreiro [-22.65°, -44.58°], 1650 m, i.1969, M. Alvarenga leg. (1 ♀ AMNH) ; unknown state: unknown locality (2 ♀ SDEI) ; PARAGUAY: Alto Paraná: unknown locality, 10.i.1936, Bierig coll., FMNHINS3975510 (1 ♁ FMNH) ; Canindeyú: Salto del Guairá [-24.02°, -54.34°], 10.xii.1971, L. Peña leg. (2 ♁, 1 ♀ CNC) ; Caazapá: Harmosa, prop. Sosa family, San Rafael Reserve [-26.321°, -55.749°], 90 m, 3–6.xii.2000, FIT, Z.H. Falin leg., SM0235893, SM0235897, SM0235885, SM0235926, SM0235585, SM0235898 (5 ♀ SEMC; 1 ♀ UTCI) ; Guairá: Villarrica [del Espirito Santo] [-25.75°, -56.43°], Bernhauer coll., FMNHINS3975876, FMNHINS4030603 (1 ♁, 1 ♀ FMNH) ; same locality, 1932, Mares coll., FMNHINS3975538 (1 ♀ FMNH) ; same locality, 7.xi.1926, F. Schade leg., Scheerpeltz coll. (1 ♁ NMW) ; same locality, 23.xi.1924, F. Schade leg., Scheerpeltz coll. (1 ♁ NMW) ; same locality, 11.ix.1924, F. Schade leg., Scheerpeltz coll. (2 ♀ NMW) ; same locality, xii.1927, F. Schade leg., Scheerpeltz coll. (1 ♁ NMW) ; same locality, xii.1925, F. Schade leg., Scheerpeltz coll. (1 ♁ NHMD) ; same locality, xi.1926, F. Schade leg., Scheerpeltz coll. (1 ♀ NHMD) ; same locality, xii.1938, F. Schade leg., Scheerpeltz coll. (1 ♀ NMW) ; same locality, x.1925, F. Schade leg., Scheerpeltz coll. (1 ♀ NMW) ; same locality, xii.1926, F. Schade leg., Scheerpeltz coll. (1 ♁ NMW) ; unknown locality, 300 m, 13.v.1951, C. Pfannel leg., FMNHINS4030573, FMNHINS4030574 (1 ♁, 1 ♀ FMNH) ; same locality except 12.ix.1951, FMNHINS4030572, FMNHINS4030571 (2 ♀ FMNH) ; Itapúa: Hohenau [-27.08°, -55.65°], i.1955, FMNHINS3975596, FMNHINS3975597, FMNHINS3975598, FMNHINS3975599 (4 ♀ FMNH) ; same locality, 30.x.1949, H. Jacob leg., Scheerpeltz coll. (1 ♁ NMW) ; same locality, 25.x.1942, Scheepeltz coll. (1 ♁ NMW) ; same locality, 20.x.1934, H. Jacob leg., Scheepeltz coll. (1 ♀ NMW) ; same locality, 6.viii.[19]33, H. Jacob leg., Scheerpeltz coll. (1 ♀ NMW) ; San Pedro Mi, San Rafael Reserve [-26.321°, -55.805°], 90 m, 27–30.xi.2000, FIT, Z.H. Falin leg., SM0235572, SM0235856, SM0235858 (3 ♀ SEMC) .

Diagnosis. Photinopygus chrysopygus belongs in the concave pronotum species group. Among species of that group that have pronotum with dense punctation (i.e., with 5–9 organized rows of punctures on each half beside median impunctate line), antennomeres 4–5 longer than wide, and sternite 7 in males without porose structure, P. chrysopygus can be recognized by the following combination of characters: sternite 8 in males with medium ( Fig. 65 ) U-shaped emargination posteriorly, antennomeres 8–10 transverse ( Fig. 67 ), antennomeres 4–10 orange (color consistent among specimens), and aedeagus as in Figs. 68–70 .

Description. Forebody ( Fig. 64 ) length 7.4–8.6 mm. Color of head, pronotum and mesoscutellum dark brown to black; antennae orange; legs dark brown to black; elytra metallic blue with green or purple overtones; abdomen dark brown to black except posterior 1/3 of segment 7 orange and segment 8 orange.Antenna ( Fig. 67 ) with antennomere 3 without tomentose pubescence; antennomere 4 with tomentose pubescence; antennomeres 4–6 longer than wide; antennomere 7 subquadrate; antennomeres 8–10 transverse. Head transverse; HW/HL ratio = 1.30–1.35. Posterior margin of head slightly extended posteriad on each side of neck. Head with medium-sized punctures, distance between punctures as wide as 1–2 punctures but punctures denser posteriorly. Left mandible with bicuspid tooth. Pronotum ( Fig. 66 ) subquadrate; PW/PL ratio = 1.00–1.02. Lateral margins of pronotum in dorsal view posteriad of midpoint concave; pronotum with 7–8 dense rows of punctures on each half beside median impunctate line; distance between punctures as wide as 1–2 punctures but areas of pronotum without punctures. EL/PL ratio = 1.54–1.56. Elytra with dense punctation; distance between punctures as wide as 0–0.5 punctures. Metepisternum covered with punctures (impunctate area less than 1/3). Abdomen with tergite 3 having setose punctures only on posterior margin; tergite 4 setose; tergites 3–4 with curved carina (arch-like); tergite 5 curved carina only at lateral margin. In males, sternite 7 without porose structure, sternite 7 with shallow and broad emargination posteriorly; sternite 8 with medium U-shaped emargination posteriorly ( Fig. 65 ). Aedeagus as in Figs. 68–70 ; in dorsal view paramere expanding to broad rounded apex; paramere shorter and narrower (except tip) than median lobe; in lateral view paramere becoming narrower near tip; paramere with peg setae as in Fig. 70 . Median lobe in dorsal view converging to narrow pointed tip; in lateral view median lobe becoming narrower; median lobe with small subapical tooth.

Distribution. Know from the Chacoan and Paraná biogeographic dominions. Distributed in the province of Misiones in Argentina, the states of Espírito Santo, Minas Gerais, Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina and São Paulo in Brazil, and the departments of Alto Paraná, Canindeyú, Caazapá, Guairá and Itapúa in Paraguay. Map is shown in Fig. 47 .

Habitat. Collected at low to mid (90–1650 m) elevations under bark and with flight intercept traps.

Figures

FIGURE 47. Distribution map of Photinopygus calidus (Erichson) (circles), and P. chrysopygus (Nordmann) (squares).

FIGURES 64–67. Photinopygus chrysopygus (Nordmann). 64. Habitus. 65. Sternites 7–8. 66. Pronotum. 67. Antenna. Not to scale.

FIGURES 68–70. Aedeagus of Photinopygus chrysopygus (Nordmann). 68. Lateral view. 69. Dorsal view. 70. Detail of paramere, ventral view.