Euborellia brasiliensis (Borelli, 1912)

Kamimura, Yoshitaka & Ferreira, Rodrigo L., 2017, Earwigs from Brazilian caves, with notes on the taxonomic and nomenclatural problems of the Dermaptera (Insecta), ZooKeys 713, pp. 25-52 : 35

Euborellia brasiliensis (Borelli, 1912) Figs 29-32

Material examined.

2 ♂♂, 2 nymphs, Gruta dos Coelhos cave , Lima Duarte, Minas Gerais, 11.vii.2005, Ferreira, RL leg. ( ISLA 15564) .

Association with caves.

This species was found in deeper areas (aphotic zones) of Gruta dos Coelhos and Gruta do Pião caves, both associated with quartzite rocks and located in the Ibitipoca state park (Lima Duarte municipality, Minas Gerais state, Brazil). In the latter cave, several individuals were found walking near root masses, probably searching for prey. There are several caves in the area, and at least three distinct inventories of cave fauna were performed over the last 10 years. However, this species was only found in two caves, suggesting that, although probably not accidental, their association with subterranean habitats is uncommon.

Remarks.

This apterous anisolabidid species from Brazil (Fig. 29 ) was originally described as Heterolabis brasiliensis by Borelli (1912), as the type species of the monotypic genus Heterolabis . Popham and Brindle (1966) recognized the type species as a member of the genus Euborellia Burr, 1910 and proposed the combination Euborellia brasiliensis (Borelli, 1912) Popham & Brindle, 1966. Therefore, they considered the generic name Heterolabis as a synonym of Euborellia . Their decision was followed by Reichardt (1968b), Sakai (1970), and Steinmann (1977, 1978).

Srivastava (1978) described a second species belonging to Heterolabis , i.e. Heterolabis punctata Srivastava, 1978. Its transfer to the genus Euborellia was proposed by Sakai (1982, 1987) and Srivastava (1999). Since the binomen Euborellia punctata was preoccupied by Euborellia punctata Borelli, 1927, they proposed the replacement names Euborellia srivastavai Sakai, 1987 and E. mindanoensis Srivastava, 1999, respectively. An alternative generic position for H. punctata was proposed by Steinmann (1989b); who recognized it as a member of the genus Epilabis Burr, 1915. Since the relevant binomen was preoccupied by Epilabis punctata Srivastava, 1976, he proposed the replacement name Epilabis harlequin Steinmann, 1989.

Currently Heterolabis Borelli, 1912 is considered a synonym of Euborellia , and the species previously considered as members of Heterolabis is as follows:

1. Euborellia brasiliensis (Borelli, 1912): Popham and Brindle (1966)

Synonym: Heterolabis brasiliensis Borelli, 1912

2. Euborellia srivastavai Sakai, 1987

Synonyms: Heterolabis punctata Srivastava, 1978; Epilabis harlequin Steinmann, 1989 (junior objective synonym); Euborellia mindanoensis Srivastava, 1999 (junior objective synonym).

The generic name Heterolabis Borelli, 1912 is an invalid homonym of Heterolabis Kriechbaumer, 1889 ( Ichneumonidae ).

Distribution.

Brazil.

Figures

Figures 23 - 35. 23 - 26 Euborellia janeirensis (male): habitus (23), penultimate sternite + manubrium (24), and genitalia (25, 26) 27 - 28 Euborellia janeirensis (female): habitus (27), and spermatheca (28) 29 - 32 Euborellia brasiliensis (male): habitus (29), penultimate sternite + manubrium (30), and genitalia (31, 32) 33 Anisolabididae gen. sp. 1 (female): habitus 34 Anisolabididae gen. sp. 2 (nymph): habitus 35 Anisolabididae gen. sp. 3 (nymph) habitus. Scale bars 3 mm for Figs 23 - 25, 27, 29, 30, 33 - 35; 0.5 mm for Figs 26, 28, 31; 100 μm for Fig. 32.