Plusiocampa (Plusiocampa) spelaea Stach, 1930

Sendra, Alberto, Antić, Dragan, Barranco, Pablo, Borko, Špela, Christian, Erhard, Delić, Teo, Fadrique, Floren, Faille, Arnaud, Galli, Loris, Gasparo, Fulvio, Georgiev, Dilian, Giachino, Pier Mauro, Kovac, L'ubomír, Lukić, Marko, Marcia, Paolo, Miculinić, Kazimir, Nicolosi, Giuseppe, Palero, Ferran, Paragamian, Kaloust, Pérez, Toni, Polak, Slavko, Prieto, Carlos E., Turbanov, Ilya, Vailati, Dante & Reboleira, Ana Sofia P. S., 2020, Flourishing in subterranean ecosystems: Euro-Mediterranean Plusiocampinae and tachycampoids (Diplura, Campodeidae), European Journal of Taxonomy 591, pp. 1-138 : 83-84

Plusiocampa (Plusiocampa) spelaea Stach, 1930

Table 10

Plusiocampa spelaea Stach, 1930: 278 .

Diagnosis ( Stach 1930; Condé 1954a; Paclt 1957)

Non-troglomorphic species. Antennae with 20–22 antennomeres. Pronotum with 1+1 ma, 2+2 la, 2+2 lp macrosetae; mesonotum with 1+1 ma, 3+3 la, 2+2 lp, 1+1 mp macrosetae; metanotum with 1+1 ma, 1+1 la, 2+2 lp, 1+1 mp macrosetae. Two ventral tibial macrosetae. Urotergites I–II with 1+1 post macrosetae; urotergite III with 2+2 post macrosetae; urotergites IV–VII with 1+1 la, 5+5 post macrosetae; urosternite I with 8+8?, urosternites II–VII with 5+5, urosternite VIII with 2+2 macrosetae.

Remarks

The study of five females and one juvenile collected in four caves (see Table S 2 in Supplementary Material) has allowed the completion of the former description, although new specimens from the type locality are needed for a proper redescription of this species. Nevertheless, a complementary and differential description has been made using the studied material.

Non-troglomorphic species ( Table 10 ). Antennae with 21 and 23 doliiform antennomeres, apical antennomere 1.3× as long as wide, with a small cupuliform organ occupying 1/7 of antennomere, with four simple olfactory chemoreceptors. Small ventral sensillum of third antennomere between d and e macrosetae. Non-protruding frontal process with non-tubercular setae. Labial palp suboval with a thick lateral anterior sensillum, two guard setae, up to five normal setae and 75 neuroglandular setae. Pronotum with 2+2 la to 3+3 la macrosetae; long, barbed notal macrosetae; notal clothing setae long, smooth or with one or two distal barbs. Calcars with two rows of long barbs. Smooth subapical tarsal setae. Slightly unequal claws (1.15–1.20) with large lateral crests and a small backward overhang. Urotergite IV with 4+4 post macrosetae (5+5 according to redescription in Paclt 1957); urotergites VI– VII with 2+2 la macrosetae (1+1 la according to Paclt 1957); urotergite VIII with 6+6 post macrosetae; abdominal segment IX with 8+8 post macrosetae; urosternite I with 7+7, urosternites II–VII with 4+4, urosternite VIII with 2+2 macrosetae. Stylar setae with a few long, thin bars. Female with subcylindrical appendages bearing up to 9 glandular a 1 setae.

Habitat and distribution

Apparently, this species only lives in caves, but its non-troglomorphic shape reveals a more superficial habitat (MSS or soils). It has been found in six caves in the southern karst areas of the Western Carpathians, where it was described from the Domica-Baradla cave system in the Slovak and Aggtelek Karst, on the border between Slovakia and Hungary.