Cyparium achardi, von Groll & Lopes-Andrade, 2022

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, European Journal of Taxonomy 835 (1), pp. 1-97 : 15-25

publication ID	https://doi.org/ 10.5852/ejt.2022.835.1909
publication LSID	lsid:zoobank.org:pub:8B8432B1-C714-4179-8687-66902F4CBF53
DOI	https://doi.org/10.5281/zenodo.7392074
persistent identifier	https://treatment.plazi.org/id/ABFE4E1F-DB31-46C1-BDC7-BDD1C4FF81E3
taxon LSID	lsid:zoobank.org:act:ABFE4E1F-DB31-46C1-BDC7-BDD1C4FF81E3
treatment provided by	Felipe
scientific name	Cyparium achardi
status	sp. nov.

Treatment

Cyparium achardi View in CoL sp. nov.

urn:lsid:zoobank.org:act:ABFE4E1F-DB31-46C1-BDC7-BDD1C4FF81E3

Figs 4 View Fig , 7–13 View Fig View Fig View Fig View Fig View Fig View Fig View Fig , 46 View Fig ; 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 View Fig ). Eyes long ( Fig. 7D View Fig ). Hypomeron and metaventrite smooth. Metanepisternum and metepimeron with imbricate microsculpture. Tergite VIII of males coarsely punctate ( Fig. 11D View Fig ). Aedeagus strongly sclerotized ( Fig. 12A–C View Fig ); apex and parameres short ( Fig. 12A View Fig ). Distal gonocoxites of females straight and thick ( Fig. 13C, E View Fig ).

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 View Fig ). Clypeus yellowish-brown; mouth parts yellowish ( Fig. 7D View Fig ); antennomeres I–VI and apical half of XI yellow; VII–X dark yellow ( Fig. 7D–F View Fig ). Hypomeron, epipleuron, and metepimeron brown to black, lighter laterally ( Fig. 7B View Fig ). Thorax and abdomen brown to black, lighter laterally ( Fig. 7B View Fig ). Coxae and femora light to chestnut brown, lighter posteriorly in some specimens; tibiae light to dark brown; tarsi yellow ( Fig. 7B–C View Fig ).

HEAD. Punctation dense, fine ( Fig. 7D View Fig ). Eyes tapered apically ( Fig. 7D View Fig ). 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 View Fig ). Mandibles curved, subapical serrations on left mandible conspicuous ( Fig. 7H–I View Fig ). Maxillae with palpomere II thickened; galea and lacinia densely pubescent, narrow ( Fig. 7J View Fig ). Mentum with sides distinctly angulated, curved apically ( Fig. 8A View Fig ). Setae of labial palpomere II exceeding palpomere III; palpomere III thick, with long apical setae ( Fig. 8A View Fig ). Hypopharynx with sclerotized plate cup-shaped ( Fig. 8A–B View Fig ). Postgena with strigulate microsculpture; gular pores sparse; gula small and rounded at anterior region ( Fig. 7C View Fig ). Antennae variable in size between males and females ( Fig. 7E–F View Fig ).

PROTHORAX. Pronotum smooth, shining; punctation somewhat dense, fine; pubescence short, fine ( Fig. 8D–E View Fig ); somewhat squared, lateral areas curved, forming an obtuse angle at lateral areas of posterior margin ( Fig. 8E View Fig ). Hypomeron smooth ( Fig. 8F View Fig ). Notosternal suture straight, inward-directed ( Fig. 8F View Fig ). Profurca elongated, exceeding half of foramen ( Fig. 8G View Fig ). Prosternal process acute apically ( Fig. 9A View Fig ).

MESOTHORAX. Mesonotum with prescutellar suture (= scutellar lines, Leschen & Löbl, 2005) almost straight ( Fig. 9B View Fig ). Scutellum rounded posteriorly ( Fig. 9B View Fig ). Anterior phragma wide, slightly curved ( Fig. 9C View Fig ). Mesanepisternum smooth ( Fig. 9D View Fig ). Procoxal rest rounded, curved posteriorly ( Fig. 9D View Fig ). Mesoventral line rounded; median line moderately curved; area between median line and mesocoxal line longer laterally ( Fig. 9D View Fig ). Mesoventral process large and straight at base in lateral view ( Fig. 9E View Fig ).

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 View Fig ). Metaventrite smooth; punctation sparse, fine; some specimens with faint lateral imbricate microsculpture ( Fig. 9D View Fig ). Mesocoxal line forming an open angle next to each coxal cavity and finely punctate under coxal cavity ( Fig. 9D View Fig ). Metanepisternum and metepimeron ( Figs 7B–C View Fig , 9D View Fig ) with imbricate microsculpture, but almost inconspicuous in some specimens. Intercoxal plates smooth ( Fig. 7B View Fig ). Metendosternite with straight furcal arms; ‘stalk ridge’ not exceeding half of stalk length ( Fig. 10A View Fig ); ventral longitudinal flange flat in lateral view ( Fig. 10B View Fig ).

WINGS. Elytra slightly longer than wide, partially covering tergite VI ( Fig. 7A View Fig ); basal and lateral lines punctate ( Fig. 8D View Fig ); sutural line dashed; adsutural area with a row of short setae ( Fig. 7A View Fig ); six rows of coarse punctures (not including sutural line), but row 5 and 6 somewhat intermixed ( Figs 7A View Fig , 10C View Fig ); apical coarse punctation moderately sparse; apical serrations moderately large, well visible ( Fig. 10D View Fig ); pubescence short, fine, denser on disc. Epipleuron with a row of punctures (poorly marked in some specimens). Hind wings fully developed ( Fig. 10E View Fig ).

LEGS. Pro-, meso- and metacoxae, and femora with strigulate microsculpture. Pro- and mesofemora somewhat fusiform ( Fig. 10F–G View Fig ); punctation moderately sparse and coarse. Metafemora straight, finely punctate ( Fig. 10H View Fig ). Mesotibiae densely spinose, spines fine ( Fig. 10G View Fig ). Metatibiae sparsely spinose, spines fine ( Fig. 10H View Fig ).

ABDOMEN. Tergites VI–VIII with imbricate microsculpture ( Fig. 11A View Fig ). Tergite VII trapezoidal; punctation dense, coarse; pubescence sparse, fine ( Fig. 11A View Fig ). Ventrite 1 sparsely and coarsely punctate; pubescence sparse, fine; strigulate microsculpture ( Fig. 11B–C View Fig ). 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 View Fig ). Pro- and mesotarsomeres I–III enlarged, with tenent setae ( Fig. 10F View Fig ). Tergite VIII triangular; punctation dense, coarse, subglabrous ( Fig. 11D View Fig ). Tergite IX with rectangular ventral struts ( Fig. 11E,F View Fig ). Sternite VIII rectangular, longish; finely punctate and with strigulate microsculpture ( Fig. 11G View Fig ). Sternite IX thicker posteriorly and triangular anteriorly ( Fig. 11F View Fig ). Aedeagus strongly sclerotized, enlarged and darker basely and narrowed apically, apex of median lobe short ( Fig. 12A,B View Fig ); openings in dorsal view somewhat enlarged, forming an acute angle ( Fig. 12C View Fig ); internal sac with irregular sclerites, with two hooks ( Fig. 12D,E View Fig ), parameres short, somewhat enlarged apically ( Fig. 12A View Fig ).

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 View Fig ). Tergite VIII triangular, rounded posteriorly; punctation dense, coarse (inconspicuous in some specimens); subglabrous ( Fig. 13A View Fig ).Sternite VIII rectangular with strigulate microsculpture ( Fig. 13B View Fig ). Vagina and bursa copulatrix membranous; vaginal plate with an apical sclerite and a pair of spermatheca at base of oviduct ( Fig. 13C–D View Fig ). Distal gonocoxites parallel, straight and thick; gonostyli larger at apex ( Figs 13C, E View Fig ).

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 View Fig ).