Cercyon (Cercyon) nigriceps ( Marsham, 1802 )

Clarkson, Bruno, Mise, Kleber M. & Almeida, Lucia M., 2020, Cercyon Leach, 1817 (Coleoptera: Hydrophilidae: Sphaeridiinae) from Brazil: new species and records, Revista Brasileira de Entomologia (e 201972) 64 (1), pp. 1-8 : 6-7

Cercyon (Cercyon) nigriceps ( Marsham, 1802)

Dermestes nigriceps Marsham, 1802: 72.

Cercyon nigriceps ( Stephens, 1829): 151 .

= Dermestes atricapillus Marsham, 1802: 72 (synonymized by Gemminger and Von Harold, 1868: 498; precedence of C. nigriceps over C. atricapillus determined by Stephens, 1839: 97, see also Hansen, 1999: 284).

= Sphaeridium centrimaculatum Sturm, 1807: 23 (synonymized by Gemminger and Von Harold, 1868: 498).

= Cercyon striatus Sharp, 1882: 108 (synonymized by FikaÏcek, 2009: 354).

= Cercyon panamensis Hansen, 1999: 286 (replacement name of C. striatus Sharp ; synonymized by FikaÏcek, 2009: 354).

For complete synonymy see Smetana (1978), Hansen (1999) and Ryndevich and Hebauer (2010).

Material examined: BRAZIL: Paraná: Antonina : “ ANTONINA - PR / Reserva Spitanduva / BRASIL 31.I.1987 / Lev. Ent. PROFAUPAR/ LÂMPADA” (1 male: DZUP); same data, different date: “ 27.II.1987 ” (1 male: DZUP); Fênix: “FÊNIX - PARANÁ / Reserva Est - ITCF/ BRASIL 30.XI.1986 / Lev.Ent. PROFAUPAR/ LÂMPADA” (1 ex.: DZUP); same data, different dates, all specimens deposited in DZUP: “ 27.I.1987 ” (3 exs.); “ 27. III. 1987 ” (3 exs.); “ 28. III. 1987 ” (1 ex.); “ 25. IV. 1987 ” (2 exs.); Guarapuava : “GUARAPUAVA - PARANÁ / Est. Água Sta.Clara/ BRASIL 28.I.1987 / Lev. Ent. PROFAUPAR/ LÂMPADA” (2 males and 1 unsexed specimen: DZUP); same data, different dates, all specimens deposited in DZUP: “ 31.XII. 1986 ” (1 male); “ 02. II. 1986 ” (1 female); Jundiaí do Sul : “JUNDIAÍ DO SUL – PR / Fazenda Monte Verde/ BRASIL 30.XII.1986 / Lev. Ent.PROFAUPAR/ LÂMPADA” (6 exs.: DZUP); same data, different dates, all specimens deposited in DZUP: “ 01.I.1987 ” (1 ex.); “ 30.I.1987 ” (1 ex.).

Discussion. This is an adventive species currently distributed in all biogeographical regions, which probably is native from the Oriental Region ( Smetana, 1978; Hansen, 1999). In Neotropical Region, the species is recorded from Costa Rica, Panama, Cayman Islands, Greater and Lesser Antilles, Brazil, Paraguay, and Argentina. In Brazil, it is recorded from Pará State, north of the country ( Fikáček, 2009; Arriaga-Varela et al., 2017). The species is herein recorded for the first time in Atlantic rain forest area of Paraná State Southern Brazil and shows a wide range distribution in the State ( Fig. 4 ). The new distribution records are compatible with the known wide distribution of the species in South America ( Fig. 4 ). The species is easily recognizable by the very small size (body length 1.0– 2.1 mm), metaventrite with complete femoral lines and the conspicuous male genitalia.For more detailed information on the morphology and illustrations of the species see Smetana (1978) and Arriaga-Varela et al. (2017).

Bionomics. All examined specimens were collected at light as indicated in their labels with the word “LÂMPADA” which means “lamp” in Portuguese but this species is known as terrestrial and are usually found inhabiting dung of various herbivorous mammals (e. g. cow and horse) as well as other kinds of decaying organic matter (rotting plant debris, compost piles, carrion), also recorded from nests of birds and small rodents ( Smetana, 1978; Hansen, 1987; Ryndevich, 2007; Fikáček, 2009; Arriaga-Varela et al., 2017).

Figures

Figure 4. Map with the known distribution of Cercyon curi sp. nov., Cercyon inquinatus Wollaston,1854, Cercyon nigriceps (Marsham,1802) and Cercyon (Cercyon) praetextatus (Say, 1825) in South America based on d’Orchymont (1939), Fikáček (2009) and the current work. White square highlights the region of Paraná State where most part of the examined specimens is from.