Mycomystes peruvianus ( Kirsch, 1876 ) Pecci-Maddalena & Skelley & Lopes-Andrade, 2021

Pecci-Maddalena, Italo S. C., Skelley, Paul & Lopes-Andrade, Cristiano, 2021, Taxonomic review of Mycomystes Gorham, 1888 (Coleoptera: Erotylidae: Tritomini), Journal of Natural History 54 (47 - 48), pp. 3075-3102 : 3095-3097

publication ID

https://doi.org/ 10.1080/00222933.2021.1890254

persistent identifier

https://treatment.plazi.org/id/038D975C-FFA1-960D-FEDA-658812D7C1B9

treatment provided by

Marcus

scientific name

Mycomystes peruvianus ( Kirsch, 1876 )
status

new combination

Mycomystes peruvianus ( Kirsch, 1876) , new combination

Figures 52–54 View Figure 49-54 , 55 View Figure 55

Mycophtorus peruvianus Kirsch, 1876: 101 [description]. Gemminger and Harold 1876: 3695; Kuhnt 1909: 89; Kuhnt 1911: 66; Mader 1942: 176; Mader 1951: 224; Blackwelder 1945: 468; Alvarenga 1994: 41; McHugh and Chaboo 2015: 278; Skelley and Powell 2018: 305.

Mycotretus peruvianus ( Kirsch, 1876) . Skelley and Powell 2018: 305 [generic transference to Mycotretus ]; Pecci-Maddalena and Lopes-Andrade 2020: 579.

Holotype ( SNSD; Figures 52–54 View Figure 49-54 )

‘Pozuzu, M. Kirsch [pale green paper, printed]\Typus [red paper, printed]\Mycophthorus peruvianus Kirsch Typus! [white paper, handwritten]\Staatl.Museum für Tierkunde Dresden [white paper, printed]\ HOLOTYPUS [red paper, printed]\ Mycotretus peruvianus (Kirsch) , det. P. Skelley 2012 [white paper]’.

Other specimens examined (13)

1 female ( FSCA, dissected) ‘ PERU, Madre de Dios, Tambopata Res . Zone, Tambopata Research, CnTr on Rio Tambopata [printed]\ S13 08 . 305, W69 36 . 502, 622 ft (3–7)- X-2004, CRBartlett Malaise Trap [printed]’; 1 male ( FSCA, dissected) ‘ PERU: Dept . Madre de Dios: Pantiacolla Lodge , Alto Madre de Dios R ., 12°39.3 ʹ S 71°13.9 ʹ W, 420 m, 14–19-XI -2007, D. Brzoska , ex . flight intercept trap, PER1B07 004 [printed]\SEMC0874169, KUNHM- ENT [printed]\ Mycotretus peruvianus (Kirsch) det . P . Skelley’ 16’ [printed] ”. 1 male, 1 female, 5 gender not determined ( FSCA, dissected) ‘ BOLIVIA: Dpto . Sta . Cruz , 5 km .SSE. Buena Vista, Hotel Flora y Fauna , 440 m, Forest FIT; S 17°29.925 W 63° 39.128; 440 m; Forest FIT; 15.24- XII-2003; S GoogleMaps . & J. Peck ; 03–131’; 4 ( FSCA) ‘ BOLIVIA: Dpto . Sta . Cruz , 5 km .SSE. Buena Vista, Hotel Flora y Fauna , 440 m, Forest FIT; S 17°29.925 W 63° 39.128; 440 m; Forest FIT; 24/ 31-XII-2003; S GoogleMaps . & J. Peck ; 03–132 ’;

Diagnosis

Body shape rounded, small, length 2.8 mm, width 1.8 mm. Body oblong, convex, weakly glossy, finely and evenly punctate; colouration brown with paler margins and appendages. Clypeus with a marginal bead fine and complete across apex. Additional characters: Metendosternite: anterior tendons thin. Genitalia: Penile flagellum elongate, approximately 2× the length of penis. Head of penile flagellum small, not very dark and with a single short anterior process that is upturned (similar to the ‘tip of an arrow’ in dorsal view). Vaginal process inconspicuous.

Distribution

Bolivia, Peru ( Alvarenga 1994; Skelley and Powell 2018) ( Figure 55 View Figure 55 ).

Nomenclature

Mycomystes peruvianus was described in the genus Mycophtorus Lacordaire (1842) . Later, it was redescribed and provisionally placed under Mycotretus by Skelley and Powell (2018). In the redefinition of Mycomystes proposed here, the species is transferred to Mycomystes due to the following features: presence of a subptengonal mentum with a nearly rounded outline; body oval, almost circular; apical maxillary palpomere semicircular and approximately 5× wider than apical labial palps; and abdominal lines conspicuous.

Key to species of Mycomystes

1. Body oval to almost circular (i.e. elytral outline conspicuously arched at the 1/2 of elytra) (e.g. Figure 19–33 View Figures 19-27 View Figures 28-33 ); tibiae not or barely widened apically ( Figure 8 View Figures 1-12 ) ...................................... 2 – Body elongate (elytral outline arched at the 2/3 of elytra) (e.g. Figure 34 View Figures 34-39 , 42–43 View Figure 40-48 ); tibiae widened apically ( Figure 9 View Figures 1-12 ) ............................................................................................................. 5

2 (1). Dorsal colouration brown with paler margins and appendages. Mesoventrite broadly rectangular, approximately 4× as wide as long, coarsely punctate. Male genitalia with flagellar head small, with a single short anterior process that is upturned (similar to the ‘tip of an arrow’ in dorsal view). Bolivia, Peru ( Figure 52–54 View Figure 49-54 ) ................................................... ................................................................................................ Mycomystes peruvianus ( Kirsch, 1876) – Dorsal colouration yellowish to red-brown, often with distinct black pattern.

Mesoventrite approximately 1.5–2.0× as wide as long, usually finely punctate; flagellar head large ........................................................................................................................................ 3

3 (2). Body oval. Dorsal colouration highly variable: head full yellowish to full blackish; pronotum full blackish or usually with two or three yellowish oval spots; elytra full reddish or reddish and apically blackish ( Figure 19–27 View Figures 19-27 ). Male genitalia with flagellar head subrectangular ( Figure 13 View Figures 13-18 ), narrowed or slightly subtriangular, i.e. narrowed posteriorly and widened apically, with the lateral borders gently rounded close to anterior border. Southeast Brazil, Colombia, Peru, Venezuela........ Mycomystes apicalis ( Lacordaire, 1842) – Body almost circular and shortened. Dorsal colouration yellowish to reddish brown.

Flagellar head fish-like, conspicuously triangular, horseshoe-shaped, with a short anterior process, etc. .......................................................................................................................... 4

4 (3). Colour pattern full yellowish to reddish-brown, tarsi with the same colour of the body. North and Southeast Brazil, Colombia, Costa Rica, French Guiana, Panama ( Figures 28–33 View Figures 28-33 ) ..................................... ..................................... Mycomystes coccineus ( Lacordaire, 1842) – Colour pattern as the previous species, tarsi blackish. Mexico ( Figure 38–39 View Figures 34-39 ) .................

...................................................................................... Mycomystes fuscitarsis ( Gorham, 1888)

5 (1). Posterior apex of prosternal process, mesoventrite, metaventrite and legs blackish ( Figure 50 View Figure 49-54 ). Male genitalia with head of penile flagellum horseshoe-shaped, inner contours widely separated, anterior borders shallowly fused medially ( Figure 16 View Figures 13-18 ). South and Southeast Brazil Mycomystes nigriventris Pecci-Maddalena and Lopes-Andrade, 2020 – Ventral colouration full yellowish to reddish-brown. Male genitalia with head of penile flagellum not horseshoe-shaped ( Figure 15 View Figures 13-18 ). ............................................................. 6

6 (5). Protibiae with outer apical angle rounded; elytral punctation uniformly longitudinal. From Central America to Argentina ( Figure 40, 42–45, 47 View Figure 40-48 ) ............................................................... ....................................................................... Mycomystes melanophthalmus ( Duponchel, 1825) – Protibiae with outer apical angle sharply pointed; elytral punctation slightly irregular and confluent at disc. Mexico ( Figure 34 View Figures 34-39 ) Mycomystes ferrugineus Gorham, 1888

FSCA

Florida State Collection of Arthropods, The Museum of Entomology

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Erotylidae

Genus

Mycomystes

Loc

Mycomystes peruvianus ( Kirsch, 1876 )

Pecci-Maddalena, Italo S. C., Skelley, Paul & Lopes-Andrade, Cristiano 2021
2021
Loc

Mycotretus peruvianus ( Kirsch, 1876 )

Skelley PE & Powell GS 2018: 305
2018
Loc

Mycophtorus peruvianus

Skelley PE & Powell GS 2018: 305
McHugh JV & Chaboo CS 2015: 278
Alvarenga M 1994: 41
Mader L 1951: 224
Blackwelder RE 1945: 468
Mader L 1942: 176
Kuhnt P 1911: 66
Kuhnt P 1909: 89
Kirsch TFW 1876: 101
Gemminger M & Harold E 1876: 3695
1876