Cyparium achardi von Groll & Lopes-Andrade 2022, sp. nov.
Creators: name: Groll, Elisa Von
name: Lopes-Andrade, Cristiano
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Cyparium
Cyparium achardi

description: Cyparium achardi sp. nov.
urn:lsid:zoobank.org:act: ABFE4E1F-DB31-46C1-BDC7-BDD1C4FF81E3
Figs 4, 7–13, 46; Supp. file 1A
Diagnosis
TL: 3.00– 3.28 mm in males and 3.32–3.40 mm in females. Entirely black, with lateral areas of some ventral sclerites lighter (Fig. 7A–C). Eyes long (Fig. 7D). Hypomeron and metaventrite smooth. Metanepisternum and metepimeron with imbricate microsculpture. Tergite VIII of males coarsely punctate (Fig. 11D). Aedeagus strongly sclerotized (Fig. 12A–C); apex and parameres short (Fig. 12A). Distal gonocoxites of females straight and thick (Fig. 13C, E).
Etymology
In homage to the entomologist Julien Achard (1881–1925) for his significant contribution on the Neotropical Scaphidiinae.
Material examined
Holotype BRAZIL • ♂; Minas Gerais, Viçosa, EPTEA Mata do Paraíso; 19 Nov. 2019; LabCol leg.; “Fungo 27 \\ Em Leucoagaricus sp. \\ Cyparium achardi von Groll & Lopes-Andrade HOLOTYPUS ” [red paper]; CELC. (Supp. file1A).
Paratypes BRAZIL • 3 ♂♂, 1 ♀ (1 ♂ entirely dissected, preserved in glycerin); same collection data as for holotype; “ T. do Pesquisador ”; 8 Nov. 2016; C. Lopes-Andrade et al. leg.; “\\ Em Marasmiellus volvatus ”; CELC • 2 ♀♀ (1 ♀, abdomen dissected, preserved in glycerin); same collection data as for holotype; 14 Nov. 2019; “Fungo 22 \\ Em Marasmiellus sp. ”; CELC • 1 ♀; same collection data as for holotype; “Fungo 26 \\ Em Hygrocybe sp. ”; CELC • 1 ♂; same collection data as for holotype; “Fungo 28 \\ Em Leucocoprinus ianthinus ”; CELC • 1 ♂; same collection data as for holotype; “Fungo 12 \\ Em Marasmius haematocephalus ”; CELC • 1 ♀; same collection data as for holotype; 26 Nov. 2019; LabCol leg.; “Fungo 53 \\ Em Leucocoprinus sp. ”; CELC • 1 spec.; Viçosa, Recanto das Cigarras, Mata da Biol.; 20 Nov. 2019; LabCol leg; “Fungo 19 \\ Em Leucocoprinus cepistipes ”; CELC.
All paratypes additionally labelled “ Cyparium achardi von Groll & Lopes-Andrade PARATYPUS [yellow paper]”.
Description
MEASUREMENTS (holotype, in mm). TL 3.12, PL 1.31, PA 0.80, PB 1.90, EW 1.20, EL 2.17, IS 0.18, HW 0.80.
COLORATION. Black; iridescent (Fig. 7A–C). Clypeus yellowish-brown; mouth parts yellowish (Fig. 7D); antennomeres I–VI and apical half of XI yellow; VII–X dark yellow (Fig. 7D–F). Hypomeron, epipleuron, and metepimeron brown to black, lighter laterally (Fig. 7B). Thorax and abdomen brown to black, lighter laterally (Fig. 7B). Coxae and femora light to chestnut brown, lighter posteriorly in some specimens; tibiae light to dark brown; tarsi yellow (Fig. 7B–C).
HEAD. Punctation dense, fine (Fig. 7D). Eyes tapered apically (Fig. 7D). Labrum transverse; lateral areas rounded, smoothly delimited apically; central margin slightly curved; sclerotized portion rounded with a row of short setae; lateral setae slightly exceeding margins of labrum; slightly porose centrally (Fig. 7G). Mandibles curved, subapical serrations on left mandible conspicuous (Fig. 7H–I). Maxillae with palpomere II thickened; galea and lacinia densely pubescent, narrow (Fig. 7J). Mentum with sides distinctly angulated, curved apically (Fig. 8A). Setae of labial palpomere II exceeding palpomere III; palpomere III thick, with long apical setae (Fig. 8A). Hypopharynx with sclerotized plate cup-shaped (Fig. 8A–B). Postgena with strigulate microsculpture; gular pores sparse; gula small and rounded at anterior region (Fig. 7C). Antennae variable in size between males and females (Fig. 7E–F).
PROTHORAX. Pronotum smooth, shining; punctation somewhat dense, fine; pubescence short, fine (Fig. 8D–E); somewhat squared, lateral areas curved, forming an obtuse angle at lateral areas of posterior margin (Fig. 8E). Hypomeron smooth (Fig. 8F). Notosternal suture straight, inward-directed (Fig. 8F). Profurca elongated, exceeding half of foramen (Fig. 8G). Prosternal process acute apically (Fig. 9A).
MESOTHORAX. Mesonotum with prescutellar suture (= scutellar lines, Leschen & Löbl, 2005) almost straight (Fig. 9B). Scutellum rounded posteriorly (Fig. 9B). Anterior phragma wide, slightly curved (Fig. 9C). Mesanepisternum smooth (Fig. 9D). Procoxal rest rounded, curved posteriorly (Fig. 9D). Mesoventral line rounded; median line moderately curved; area between median line and mesocoxal line longer laterally (Fig. 9D). Mesoventral process large and straight at base in lateral view (Fig. 9E).
METATHORAX. Metanotum with wide alacrista, rounded and somewhat turned to the posterior end; scutoscutellar suture slightly straight; median membranous area wide and very short (Fig. 9F). Metaventrite smooth; punctation sparse, fine; some specimens with faint lateral imbricate microsculpture (Fig. 9D). Mesocoxal line forming an open angle next to each coxal cavity and finely punctate under coxal cavity (Fig. 9D). Metanepisternum and metepimeron (Figs 7B–C, 9D) with imbricate microsculpture, but almost inconspicuous in some specimens. Intercoxal plates smooth (Fig. 7B). Metendosternite with straight furcal arms; ‘stalk ridge’ not exceeding half of stalk length (Fig. 10A); ventral longitudinal flange flat in lateral view (Fig. 10B).
WINGS. Elytra slightly longer than wide, partially covering tergite VI (Fig. 7A); basal and lateral lines punctate (Fig. 8D); sutural line dashed; adsutural area with a row of short setae (Fig. 7A); six rows of coarse punctures (not including sutural line), but row 5 and 6 somewhat intermixed (Figs 7A, 10C); apical coarse punctation moderately sparse; apical serrations moderately large, well visible (Fig. 10D); pubescence short, fine, denser on disc. Epipleuron with a row of punctures (poorly marked in some specimens). Hind wings fully developed (Fig. 10E).
LEGS. Pro-, meso- and metacoxae, and femora with strigulate microsculpture. Pro- and mesofemora somewhat fusiform (Fig. 10F–G); punctation moderately sparse and coarse. Metafemora straight, finely punctate (Fig. 10H). Mesotibiae densely spinose, spines fine (Fig. 10G). Metatibiae sparsely spinose, spines fine (Fig. 10H).
ABDOMEN. Tergites VI–VIII with imbricate microsculpture (Fig. 11A). Tergite VII trapezoidal; punctation dense, coarse; pubescence sparse, fine (Fig. 11A). Ventrite 1 sparsely and coarsely punctate; pubescence sparse, fine; strigulate microsculpture (Fig. 11B–C). Metacoxal lines finely punctate. Ventrites 2–5 sparsely and finely punctate; pubescence sparse, fine; imbricate microsculpture anteriorly and with strigulate microsculpture middle-posteriorly.
Males
MEASUREMENTS (n = 1, paratype; in mm). Antennomeres (length(width)): 0.18(0.06), 0.11(0.05), 0.10(0.04), 0.09(0.04), 0.10(0.05), 0.07(0.06), 0.09(0.10), 0.09(0.11), 0.10(0.12), 0.10(0.13), 0.17(0.14); (n = 5, including the holotype; in mm): TL 3.00–3.28 (mean = 3.14, standard deviation ± 0.10), PL 1.20– 1.31 (1.25 ± 0.04), PA 0.80–0.97 (0.89 ± 0.06), PB 1.72–2.07 (1.93 ± 0.13), SL 0.13–0.17 (0.14 ± 0.01), SW 0.15–0.20 (0.18 ± 0.02), EI 1.72–1.92 (1.81 ± 0.07), EL 2.07–2.32 (2.18 ± 0.09), EW 1.07–1.25 (1.19 ± 0.07), EH 0.70–0.80 (0.75 ± 0.05), HW 0.74–0.83 (0.78 ± 0.03), IS 0.15–0.24 (0.17 ± 0.03), WA 0.14–0.17 (0.16 ± 0.01), MC 0.72–0.92 (0.81 ± 0.08), MB 0.42–0.50 (0.46 ± 0.04), VL 0.62–0.70 (0.64 ± 0.03).
Antennae almost reaching level of mesanepisternum, smaller than in females (Fig. 7E). Pro- and mesotarsomeres I–III enlarged, with tenent setae (Fig. 10F). Tergite VIII triangular; punctation dense, coarse, subglabrous (Fig. 11D). Tergite IX with rectangular ventral struts (Fig. 11E,F). Sternite VIII rectangular, longish; finely punctate and with strigulate microsculpture (Fig. 11G). Sternite IX thicker posteriorly and triangular anteriorly (Fig. 11F). Aedeagus strongly sclerotized, enlarged and darker basely and narrowed apically, apex of median lobe short (Fig. 12A,B); openings in dorsal view somewhat enlarged, forming an acute angle (Fig. 12C); internal sac with irregular sclerites, with two hooks (Fig. 12D,E), parameres short, somewhat enlarged apically (Fig. 12A).
Females
MEASUREMENTS (n = 1, paratype; in mm). Antennomeres (length(width)): 0.20(0.06), 0.13(0.05), 0.11(0.04), 0.12(0.05), 0.11(0.06), 0.08(0.07), 0.11(0.11), 0.10(0.13), 0.11(0.14), 0.10(0.16), 0.16(0.15); (n = 4, paratype; in mm): TL 3.32–3.40 (mean = 3.37, standard deviation ± 0.04), PL 1.23–1.39 (1.33 ± 0.07), PA 0.97–1.05 (1.01 ± 0.04), PB 2.05–2.17 (2.10 ± 0.05), SL 0.18–0.21 (0.19 ± 0.01), SW 0.17–0.20 (0.19 ± 0.01), EI 1.90–2.00 (1.94 ± 0.05), EL 2.27–2.40 (2.35 ± 0.05), EW 1.25–1.27 (1.25 ± 0.01), EH 0.80–1.00 (0.88 ± 0.09), HW 0.81–0.84 (0.84 ±0.02), IS 0.16–0.25 (0.20 ±0.04), WA 0.15–0.21 (0.18 ± 0.02), MC 0.87–0.95 (0.90 ± 0.03), MB 0.42–0.52 (0.46 ± 0.04), VL 0.67–0.75 (0.71 ± 0.03).
Antennae longer than in males, surpassing mesanepisternum (Fig. 7F). Tergite VIII triangular, rounded posteriorly; punctation dense, coarse (inconspicuous in some specimens); subglabrous (Fig. 13A).Sternite VIII rectangular with strigulate microsculpture (Fig. 13B). Vagina and bursa copulatrix membranous; vaginal plate with an apical sclerite and a pair of spermatheca at base of oviduct (Fig. 13C–D). Distal gonocoxites parallel, straight and thick; gonostyli larger at apex (Figs 13C, E).
Host fungi
Adults were collected from Marasmiellus volvatus Singer (Agaricales, Omphalotaceae) (1 record, 4 individuals), Marasmiellus sp. Murrill (1, 2), Marasmius haematocephalus (Mont.) Fr. (Agaricales, Marasmiaceae) (1, 1), Leucocoprinus ianthinus (Sacc.) P.Mohr (Agaricales, Agaricaceae) (1, 1), L. cepistipes (Sowerby) Pat. (1, 1), Leucoprinus sp. (1, 1), Hygrocybe sp. (Agaricales, Hygrophoraceae) (1, 1), Leucoagaricus sp. (Agaricales, Agaricaceae) (1, 1).
Remarks
Similar to C. pygidiale, which occurs in Jataí, Goiás, Brazil (1174 km from the collection site of C. achardi sp. nov.), but they differ in the humeral and apical region of the elytra, and in the scutellar shield (blackish in C. achardi and reddish in C. pygidiale); elytral punctation is also different: rows 1–3 are coarser in C. pygidiale and the remainder are coarser in C. achardi; furthermore, rows 1–3 are somewhat outward directed, while they are inward directed in C. pygidiale.
Distribution
Known only from Mata da Biologia, campus of the Universidade Federal de Viçosa, Viçosa, state of Minas Gerais, Southeast Brazil (Fig. 46).
description: Published as part of Groll, Elisa Von & Lopes-Andrade, Cristiano, 2022, Contributions to the taxonomy of Neotropical Cyparium Erichson (Coleoptera: Staphylinidae: Scaphidiinae), with the description of five new species, pp. 1-97 in European Journal of Taxonomy 835 (1) on pages 15-25, DOI: 10.5852/ejt.2022.835.1909, http://zenodo.org/record/7033400