Mycomystes coccineus ( Lacordaire, 1842 ) 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 : 3087-3089

publication ID

https://doi.org/ 10.1080/00222933.2021.1890254

persistent identifier

https://treatment.plazi.org/id/038D975C-FFB9-9615-FEA4-65AD14A9C3B3

treatment provided by

Marcus

scientific name

Mycomystes coccineus ( Lacordaire, 1842 )
status

new combination

Mycomystes coccineus ( Lacordaire, 1842) , new combination

Figure 2–3, 5, 11 View Figures 1-12 , 14 View Figures 13-18 , 1 View Figures 1-12 , 28–33 View Figures 28-33 , 55 View Figure 55

Lybas coccineus Lacordaire, 1842: 239 [description].

Mycotretus coccineus ( Lacordaire, 1842) . Crotch 1876: 458 [generic transference to Mycotretus ]; Gemminger and Harold 1876: 3692; Kuhnt 1909: 72; Kuhnt 1911: 48; Curran 1941: 286; Deelder 1942: 88; Blackwelder 1945: 466; Alvarenga 1994: 22; Skelley 1998: 18; Pecci-Maddalena and Lopes-Andrade 2020: 585; Pecci-Maddalena et al. 2020: 3.

Mycotretus unicolor Fauvel, 1860: 326 [description], new synonym. Gemminger and Harold 1876: 3695; Kuhnt 1911: 54; Blackwelder 1945: 468; Alvarenga 1994: 37.

Mycotretus sanguinosus Crotch, 1876: 458 [description], new synonym. Gemminger and Harold 1876: 3695; Gorham 1888: 68; Kuhnt 1909: 72; Kuhnt 1911: 53; Curran 1941: 286 [doubtful synonymy with L. coccineus ]; Blackwelder 1945: 467; Alvarenga 1994: 34; Skelley 1998: 18.

Type specimen

Probably in MRSN (see below).

Type specimens of synonymised species.

Mycotretus sanguinosus Crotch, 1876 , lectotype, here designated (UMZC; Figure 33 View Figures 28-33 )

‘TYPE [blue label, printed]\ TYPE. [printed] sanguineus N Gran R. [handwritten]

\ LECTOTYPE [printed] Mycotretus sanguinosus Crotch 1876 [handwritten]’.

Other specimens examined (9)

1 specimen ( UMZC; Figure 31 View Figures 28-33 ) ‘ Bras [handwritten]\ TYPE . [printed, crossed out] coccineus Bras Reiche [handwritten]’; 1 specimen ( RBINS; Figure 32 View Figures 28-33 ) ‘ Coll . R . I. Sc. N. B . Guyane FranÇaise , Cayenne . Coll . Chapuis [printed]\ Mycotretus unicolor, Cayenne, Fauvel [handwritten] ’. 2 females ( MNRJ, dissected) ‘ ColeÇão M . Alvarenga [printed]\ Chiriqui, Panamá, Ribbe [handwritten]\B .C.A., Col ., VII. Mycotretus sanguinosus . [printed]\1874 [printed]’; 1 male ( MNRJ, dissected) ‘ Benjamin Constant, Amazonas, Brasil 18–28 .IX .1962, K. Lenko – col . [printed]\Mycotret. 500 [handwritten]’; 1 female ( MNRJ, dissected) ‘ ColeÇão M . Alvarenga [printed]\TABATINGA, Amazonas BRASIL, 22 a 24–VII–1956, M . Alvarenga legit . [printed]\1885–A [handwritten]\ Mycotretus 509 [handwritten]\Ápice tibias, dilatadas, ápice prosterno comprimido. [handwritten]’; 1 male ( MNRJ, dissected) ‘ Hansa Humboldt, Sta . Catharina , Brasilien Reitter [printed]\1B [handwritten]\mycotretus 217 [handwritten]\ Cr [?] 89 . H. 5. [handwritten]\ Mycotretus sanguinosus Crotch [handwritten]\Det . Oscar Monte [printed]’; 2 female ( FSCA, dissected) ‘Peru [printed]’; 1 male ( FSCA, dissected) ‘ Esp . Santo , Staud . 98. [printed]’. 1 ( SEMC) ‘ Peru: Junin, 840 m . Sani Beni vicinity,. 8 km. E. Satipo , Oct 1–10 1935, F . Woytkowski’ .

Diagnosis

Body shape rounded, TL = 4.35–4.86 mm (4.61 mm, n = 2), almost circular; large pentagonal mentum with subequal sides, nearly rounded outline; apex of prosternal process conspicuously wider than procoxae (> 1.5× procoxal width); metendosternite welldeveloped, laminae present, anterior tendons conspicuously widened in males; colour pattern full yellowish to reddish-brown, antennomeres VIII–XI blackish. Genitalia with penile flagellum elongate, approximately 2.09× the length of penis; flagellar head resembling a ‘fish-like’ structure. Vaginal process present, blunt swelling and elongate to the level of gonostyli.

Distribution

North and Southeast Brazil, Colombia, Costa Rica, Guiana, French Guiana, Panama, Suriname ( Alvarenga 1994) ( Figure 55 View Figure 55 ).

Nomenclature

The species synonymised here under Mycomystes coccineus ( Mycotretus unicolor and Mycotretus sanguinosus ) are fully yellowish to reddish in colour, and are oval (almost circular) in body shape. Specimens from North and Southeast Brazil were dissected and no morphological difference was observed in their body structures, even in the penile flagellum.

Remarks

The primary type of M. coccineus is probably housed in the Brême collection, MRSN (Torino). The drawers of the collection were photographed and the specimen mentioned here is labelled as ‘Lacordaire [handwritten]’ and is kept in drawer ‘15’, in which it is handwritten ‘Erotyliens – Engidiformes 1 H–16’. Unfortunately, that information was observed after visiting the museum. As we did not have dorsal and ventral images of the specimen, we prefer not to designate the lectotype of M. coccineus here.

Curran (1941) pointed out that M. sanguinosus would be a possible synonymous of M. coccineus , although stating his act as doubtful (‘?’). However, subsequent authors ( Blackwelder 1945; Alvarenga 1994) did not recognised Curran’s synonymy of M. sanguinosus with M. coccineus . Curran examined only specimens from ‘Kartabo’ ( Guyana) with no information on individuals of different localities. Therefore, we do not recognise the validity of the Curran’s act and propose the new synonymy of M. sanguinosus with M. coccineus in the present work.

RBINS

Royal Belgian Institute of Natural Sciences

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

FSCA

Florida State Collection of Arthropods, The Museum of Entomology

SEMC

University of Kansas - Biodiversity Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Erotylidae

Genus

Mycomystes

Loc

Mycomystes coccineus ( Lacordaire, 1842 )

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

Mycotretus coccineus (

Skelley PE 1998: 18
Alvarenga M 1994: 22
Blackwelder RE 1945: 466
Deelder CL 1942: 88
Curran CH 1941: 286
Kuhnt P 1911: 48
Kuhnt P 1909: 72
Crotch GR 1876: 458
Gemminger M & Harold E 1876: 3692
1876
Loc

Mycotretus sanguinosus

Skelley PE 1998: 18
Alvarenga M 1994: 34
Blackwelder RE 1945: 467
Curran CH 1941: 286
Kuhnt P 1911: 53
Kuhnt P 1909: 72
Gorham HS 1888: 68
Crotch GR 1876: 458
Gemminger M & Harold E 1876: 3695
1876
Loc

Mycotretus unicolor Fauvel, 1860: 326

Alvarenga M 1994: 37
Blackwelder RE 1945: 468
Kuhnt P 1911: 54
Gemminger M & Harold E 1876: 3695
Fauvel CAA 1860: 326
1860
Loc

Lybas coccineus

Lacordaire JT 1842: 239
1842