Oncopodura fadriquei Jordana & Baquero

Jordana, Rafael, Fadrique, Floren & Baquero, Enrique, 2012, The collembolan fauna of Maestrazgo caves (Teruel, Spain) with description of three new species, Zootaxa 3502, pp. 49-71 : 63-70

publication ID	https://doi.org/ 10.5281/zenodo.212081
DOI	https://doi.org/10.5281/zenodo.5670891
persistent identifier	https://treatment.plazi.org/id/510F6C71-FFC1-3C74-FF7E-F9FEFDD4F8EF
treatment provided by	Plazi
scientific name	Oncopodura fadriquei Jordana & Baquero
status	sp. nov.

Treatment

Oncopodura fadriquei Jordana & Baquero sp. nov.

Figs 38–58 View FIGURES 38 – 39 View FIGURES 40 – 44 View FIGURES 45 – 49 , Tab. 1

Diagnosis. Unpigmented; without eyes; claw moderately broad, untoothed, and with a prominent internal lamina; empodium acuminate with basal swelling; 19 + 19 dorsal manubrial setae; dens with well developed conical subbasal spine, two well developed bidentate internal distal spines, and terminal external hook; mucro with 5 teeth.

Type locality. La Cija Cave, Fortanete, Teruel, UTM Coordinates (ED50): 30TO706648/ 4495135, 1584 m asl.

Type material. Holotype on slide Te8, 14.xi.2009, temperature = 8,2 ºC, HR 98,4%. Paratypes: 10 specimens in ethylalcohol, F. Fadrique leg. Holotype and 5 paratypes deposited in MZNA; other paratypes in the Barcelona Natural Science Museum.

Additional material from type locality. Sample T3, 1 specimen on slide and 3 specimens in ethylalcohol, 11.xi.2011. Sample Te07, 1 specimen on slide, 2 specimens in ethylalcohol, 2.iv.2010, temperature 8,6 ºC, HR 92,15%. Sample Te10, 1 specimen on slide, 27.v.2010, temperature 8,35ºC, HR 97,46%. F. Fadrique leg. Deposited in the Barcelona Natural Science Museum.

Additional material from other caves. St. Victor Cave, Fortanete (Teruel): 23 specimens in ethylalcohol and 1 specimen on slide (sample T1), 12.xi.2011, UTM Coordinates (ED50): 30TO710974/4480491, temperature 13,88ºC, HR 95,27%. F. Fadrique leg. Turcacho Cave, Iglesuela del Cid, Teruel: 1 specimen on slide, 3 specimens in ethylalcohol (sample Te11), 2.xii.2011, UTM Coordinates (ED50): 31TO729984/4485051, temperature 10,36ºC, HR 96,17. F. Fadrique leg. Deposited in MZNA.

Description. Habitus typical of genus ( Fig. 38 View FIGURES 38 – 39 ). Maximum length 2.0 mm (mean of 6 specimens = 1.82 mm). Colour white without trace of pigment.

Antennae ( Figs 40–43 View FIGURES 40 – 44 ). 1.5-1.9 times of cephalic length, without apical bulb and scales. Ant I with 1 ventral microseta, 2 blunt ventral sensilla, 8 dorsal thick setae (smaller than those of Ant II–III) and 9 normal setae. Ant II with 7–10 sensillae similar to those of Ant IV and 11 setae thick at their base. Ant III with sensory organ formed by 2 expanded sensilla, with 1 apical curved seta, 2 blunt sensilla in each side and 2 sensilla similar to those of Ant IV ( Fig. 42 View FIGURES 40 – 44 ), 11 setae thick at their base, apparently smooth, but in great magnification ciliated with cilia appressed to the seta ( Fig. 41 View FIGURES 40 – 44 ). Ant IV with three sub-apical modified setae near the apical sensillum ( Fig. 44 View FIGURES 40 – 44 ) clearly different from others. 4 middle long and expanded sensilla and 1 shorter basal one ( Fig. 43 View FIGURES 40 – 44 ).

Head. Eyes and PAO absent. Labrum with 4 prelabral setae and 3 rows of 5, 5, 4 setae on papillae ( Fig. 45 View FIGURES 45 – 49 ). Dorsal chaetotaxy: 7+7 inter-antennal macrosetae and 3 lateral on each side. 2 rows of 6 and 3 macrosetae, respectively, in front of prelabral setae. Rest of head surface with scales and microsetae ( Fig. 46 View FIGURES 45 – 49 ). Maxilla as in figure 47. Labial triangle with 10 smooth macrosaetae. Postlabial setae as in figure 48. Ventral head chaetotaxy as in figure 49.

Body chaetotaxy as in figure 50. Mesothorax extended forward over the head, 1 smooth spine-like seta and 1 smooth lateral trichobothrium. Metathorax with 2 + 2 trichobothria. Abdomen: 1 trichobothrium on Abd II, 1 long and ciliated macrochaeta on Abd III. 4 +4 macrochaeta on Abd IV. 4 + 4 ciliated and short macrochaeta (shorter than Abd IV macrochaetae) and 3 + 3 smooth long setae on Abd V. Abd VI: epiprocte with 6 + 6 ciliated and blunt macrochaeta and 2 +2 microchaetae. Paraprocte with 5 similar ciliated macrochaeta and 13 smooth setae of variable size.

Legs. Chaetotaxy as Figs 51–53 View FIGURES 51 – 53 . Fore leg: coxa with 1 seta, trochanter with 6 setae, femur with 4 whorls from basal to distal with 3, 3, 3, 7 setae, respectively; whorls 2 and 4 with 1 microseta; tibiotarsus with 5 whorls from basal to distal with 3, 6, 6, 4 and 6 setae, respectively; whorls 2 and 4 with 1 microseta, tenent hair acuminate. Mid leg: coxa with 6 setae, trochanter with 6 setae, femur with 3 whorls from basal to distal with 7, 6, 7 setae, respectively and with 1 microseta on whorls 2 and 3; tibiotarsus with 5 whorls with 3, 5, 6, 5 and 6 setae, whorl 2 with 1 internal microseta, whorl 3 with an apically expanded seta and whorl 3 or 4 with 1 internal microseta. Hind leg: coxa with 8 setae, trochanter with 5 setae, femur with 4 whorls of setae from basal to distal with 6, 4, 5 and 6 setae; distal whorl with 1 microseta; tibiotarus with 5 whorls from basal to apical with 3, 7, 7, 7 and 8 setae respectively, whorls 2 and 3 or 4 with 1 microseta. Claw ( Figs 54–56 View FIGURES 54 – 58 ) moderately broad, untoothed, with prominent internal lamina, slightly shorter than the empodium; outer pretarsal seta about 1/10 length of internal side of claw; internal seta minute. Empodium acuminate with basal swelling. Medial expanded seta of mesotibiotarsus clavate, most other tibiotarsal setae large, acuminate, and extremely finely ciliate. Tenent hair slender and acuminate.

Ventral tube without prominent papillae, with 3 + 3 apical setae on lateral lobes. Tenaculum with 4 + 4 teeth and large stout acuminate ciliate seta on the corpus.

Furca ( Fig. 57 View FIGURES 54 – 58 ). Manubrial chaetotaxy with 19 + 19 dorsal setae, 15 as ciliated macrochaetae and 4 as smooth setae. Dens on its basal part with 5 ciliated macrochaetae, and 1 long basal smooth seta. Externally with 2 minute spines, internal edge with 1 minute spine and 1 well developed conical spine. Distally with 2 dorsal macrochaetae, 2 small spines, 2 well developed bidentate spines on internal edge and 1 terminal external hook (sometimes with a minute middle tooth). Ventrally with 4 terminal setae. Mucro with 5 teeth (1 small dorsal basal, 2 internal and 2 terminal) ( Figs 39 View FIGURES 38 – 39 , 58 View FIGURES 54 – 58 )

Bionomy and distribution. Found in three of the caves: Turcacho, La Cija and San Victor.

Etymology. The new species is dedicated to F. Fadrique, responsible for the sampling.

Remarks. O. fadriquei Jordana & Baquero sp. nov, among 49 species of Oncopodura described up to date ( Bellinger et al. 2012), belongs to the group without PAO. In this group only 8 species have stylized and long claw, and only two ( O. alpa Christiansen & Bellinger, 1980 and the new species) have the mucro with 5 teeth. O. fadriquei Jordana & Baquero sp. nov, differs from O. alpa by the number of sensillae in Ant II, the number of internal spines on basal part of dens, the form of distal external hook and the form of distal internal spines on dens. Among the Palaearctic species the nearest species is O. delhezi Stomp, 1974 , an African species described from Ifri Smedane at Dujurdjura ice caves ( Algeria). O. delhezi differs from the new species by having 4 teeth on mucro, claw lamella longer than the claw half, bidentate external hook on distal part of dens, and the absence of hook on de internal basal part of dens. Gama (1984) cited O. delhezi from caves at Mallorca, Barcelona and Huesca provinces, however, describing these specimens as different from the original. The differences presented by Gama suggest that these specimens might belong to a species other than O. delhezi . This material was requested to the Museum of Barcelona and appears to have been lost.