Plusiocampa (Plusiocampa) hoffmanni Sendra & Antić & Barranco & Borko & Christian & Delić & Fadrique & Faille & Galli & Gasparo & Georgiev & Giachino & Lukić & Marcia & Miculinić & Nicolosi & Palero & Paragamian & Pérez & Polak & Prieto & Turbanov & Vailati & Reboleira 2020, sp. nov.
Creators: name: Sendra, Alberto
name: Antić, Dragan
name: Barranco, Pablo
name: Borko, Špela
name: Christian, Erhard
name: Delić, Teo
name: Fadrique, Floren
name: Faille, Arnaud
name: Galli, Loris
name: Gasparo, Fulvio
name: Georgiev, Dilian
name: Giachino, Pier Mauro
name: Kovac, L'ubomír
name: Lukić, Marko
name: Marcia, Paolo
name: Miculinić, Kazimir
name: Nicolosi, Giuseppe
name: Palero, Ferran
name: Paragamian, Kaloust
name: Pérez, Toni
name: Polak, Slavko
name: Prieto, Carlos E.
name: Turbanov, Ilya
name: Vailati, Dante
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Campodeidae
Plusiocampa
Plusiocampa hoffmanni

description: Plusiocampa (Plusiocampa) hoffmanni Sendra & Paragamian sp. nov.
urn:lsid:zoobank.org:act: 7C4D40A0-3013-48A3-B3DF-529E78F99DDC
Figs 59–94, 204; Tables 6–8
Etymology
This species is named in honour of Luc Hoffmann (1923–2016), an extraordinary man, a naturalist and philanthropist, who helped create many international conservation organisations and supported conservation research and actions in the Mediterranean and elsewhere.
Material examined
Holotype GREECE • ♀; Crete, Marathos nomos Iraklion, Spilaio Doxa (n. 1065); 490 m a.s.l.; 11 May 2005; Fulvio Gasparo leg.; MZB.
Paratypes GREECE – Crete • 2 ♂♂, 2 ♀♀; same collection data as for holotype but 2 Jun. 2002; Coll. AS • 1 ♀; Zoniana nomos Rethymon, Spilaio Sfento Trypa (n. 701); 630 m a.s.l.; 11 Apr. 2003; Kaloust Paragamian leg.; Coll. AS • 6 ♀♀; Krousonas, Malevizi, Krousaniotiko Livadi, Varathro Stou Bokon ton Poro; 1Jul. 1990; Kaloust Paragamian leg.; Coll. AS • 1 ♀; Mylopotamos, Livadia, Varathro Sipouli; 24 Mar. 1990; Kaloust Paragamian leg.; Coll. AS • 1 ♂, 2 ♀♀; Malevizi, Gonies, Varathro Psistraki; 20 Nov. 2005; Kaloust Paragamian and S. Paragamian leg.; Coll. AS.
Description
BODY. Body length: 4.8 mm (juvenile), 4.7 and 5.4 mm (males from Spilio Doxa), 5.9 and 6.4 mm (females from Spilio Doxa), and 7.4 mm (male from Sfentoni Trypa). Epicuticle smooth under optical microscope, but reticulate at high magnification (Figs 68–69); body with thin, long clothing, smooth or with a few thin distal barbs on dorsal side and well barbed on ventral side, legs and urosternal appendages.
HEAD. Antennae with 44–53 antennomeres; central antennomeres 2.5–3× as long as wide, apical antennomere 2.5× as long as wide (Fig. 61). Large cupuliform organ occupying ¼ of total length of apical antennomere, with 8–10 complex olfactory chemoreceptors (Figs 59–60). Small coniform sensillum of third antennomere located in ventral position between c and d macrosetae. Thin and long gouge sensilla, 38–50 µm long, in a single distal whorl of 10–14 sensilla on each medial and distal antennomere (Figs 62–64). Protruding frontal process with tubercular setae and macrosetae with thin barbs. Three macrosetae along line of insertion of antennomere and x setae relatively long, covered from distal third to fourth (Figs 65–66).
THORAX. Thoracic macrosetal distribution (Fig. 67): pronotum with 1+1 ma, 4+4 la 1,2,3,4, 2+2 lp 2,3; mesonotum with 1+1 ma, 3+3 la 1,2,3, 2+2 lp 2,3, 1+1 mp; metanotum with 1+1 ma, 0+0, 0+1, 1+1, 1+2 la or 0+1, 1+1 sla, 2+2 lp 2,3, 1+1 mp. All medial posterior macrosetae in a forward position. All long, thin notal macrosetae with very thin barbs along distal third or half; marginal setae longer than clothing setae, covered by a few thin distal barbs. Legs elongated, metathoracic legs overpassing end of abdomen at beginning of tarsus. Tibia longest part of leg, 1.11–1.30× as long as tarsus and 1.21–1.37× as long as femur (Table 7). Ratios between lengths of tibia, tarsus and femur seem more or less fixed (Table 7). Femora II–III with one long, thin dorsal macroseta and one shorter ventral macroseta. Tibiae I–III with two or three ventral macrosetae surrounded by thin, short barbs. Calcars surrounded from base almost to tip by thin, short barbs. Metatarsus with a pseudo-articulation on distal third. Typical double rows of thick, completely barbed setae along ventral side of tarsus. Dorsal and lateral subapical tarsal setae completely covered by thin barbs nearly from base almost to tip. Subequal to slightly unequal claws (posterior claw 1.05–1.15× as long as anterior one), with large lateral crests well developed on posterior claw prolongated backwards. Ventral side of claws with longitudinal ridges separated by a surface of micro-hemispherical structures. Pretarsal processes setiform, with abundant, very short proximal barbs (Figs 71–82).
ABDOMEN. Distribution of abdominal macrosetae on tergites: 1+1 post 1 on I–II; 1+1–0+0 la, 1+1 post 1 on III; 1+1 la, 3+3–4+4 post 1,2,4,5 on IV; 1+1 la, 5+5 post 1–5 on V–VII, 7+7 post on VIII; 8+8–9+9 post on abdominal segment IX. Urosternite I with 7+7–9+9, urosternites II–VII with 5+5–7+7, urosternite VIII with 2+2 macrosetae; all urosternal macrosetae robust, large, covered by long barbs along distal half to four-fifths (Figs 87–88). Stylus with subapical setae longer and more barbated, in fact completely surrounded by short, abundant barbs, more numerous on apical and ventromedial setae (Figs 92–93); large eversible vesicles (Figs 92, 94). Two complete cerci, 2.37 and 1.71× as long as body; this ratio higher in an incomplete 14.50 mm long cercus of 5.4 mm long male (Table 8); up to 11 articles, covered with numerous disorganized, long, thin macrosetae with thin barbs along distal half, in addition to a distal whorl of longer, thicker macrosetae on each article plus an apical whorl of barbed, thin, short clothing setae (Fig. 70).
SECONDARY SEX CHARACTERS. Female urosternite I with subcylindrical appendages, each bearing up to 18 glandular a 1 setae in a distal area (Figs 89–91). Male urosternite I (Figs 83–86) with a posterior area of up to 160 glandular g 1 setae in larger male from Sfedoni Trypa (absent in smaller male); with thick, large, subcylindrical appendages, much thicker than female appendages, each bearing up to 100 glandular a 1 setae in a large distal area in two largest adults. Spermatozoid fascicles with a thick spiral filament.
Phyletic affinities, habitat and distribution
The presence of medial posterior macrosetae on the mesonotum and metanotum relates P. (P.) hoffmanni sp. nov. to almost half of the species in the subgenus Plusiocampa, all living in the European region, including most of the Mediterranean islands. Among them, P (P) festae is probably the closest related species due to the distribution pattern of their notal macrosetae; in spite of the fact that both species live in Crete (Condé 1984a; Silvestri 1933a), they occupy different habitats, P. (P.) hoffmanni sp. nov. in deep subterranean habitats, P. (P.) festae in soil and subterranean superficial habitats. In addition to this ecological difference, there are several important features that allow them to be separated. Plusiocampa (P.) hoffmanni sp. nov. has troglomorphic traits, with longer appendages than P. (P.) festae and more antennomeres and cercal articles, with more complex and more numerous olfactory chemoreceptors within the cupuliform organ. In P. (P.) hoffmanni sp. nov., the claws are slightly unequal to subequal, but with large lateral crests and a backward prolongation of the posterior claws. Additionally, P. (P.) hoffmanni sp. nov. shows a protruding frontal process covered by tuberculated setae, 8+8 macrosetae on the first urosternite and 6+6 on the second to seventh urosternites. Some of these features also separate P. (P.) hoffmanni sp. nov. from P. (P.) rybaki, a poorly described troglomorphic species from the southern Balkan Peninsula (Condé 1956). Plusiocampa (P.) hoffmanni sp. nov. has been collected from the deep zone of 14 caves in the numerous karst areas of Crete (Fig. 204).
description: Published as part of 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), pp. 1-138 in European Journal of Taxonomy 591 on pages 54-62, DOI: 10.5852/ejt.2020.591, http://zenodo.org/record/3659823