Neonaphorura alicatai, Giuga, Luca & Jordana, Rafael, 2013

Giuga, Luca & Jordana, Rafael, 2013, Three new species of Collembola from soils of Mediterranean cork-oak forests of Sicily (Italy), Zootaxa 3664 (2), pp. 283-300 : 284-289

publication ID	https://doi.org/ 10.11646/zootaxa.3664.2.9
publication LSID	lsid:zoobank.org:pub:0E1F4878-5199-4527-B29E-63FD912A337C
DOI	https://doi.org/10.5281/zenodo.6150142
persistent identifier	https://treatment.plazi.org/id/03E7B87D-FFAF-F90C-BCCC-FA156EB196DF
treatment provided by	Plazi
scientific name	Neonaphorura alicatai
status	sp. nov.

Treatment

Neonaphorura alicatai sp. nov.

Figs 1–20 View FIGURES 1 – 10 View FIGURES 11 – 15 View FIGURES 16 – 20 , Tables 1 View TABLE 1 , 2 View TABLE 2

Diagnosis. PAO with 12 compound vesicles. Abd VI with 4 anal spines and 2 lateral tubercles, without unpair spiniform process. Pseudocellar formula 11/122/22211.

Type locality. Caronia (Messina), Sicily, Italy. Coordinates: 38°00'36.82"N, 14°32'27.99"E; 460 m asl.

Type material. Holotype (female) on slide MZNASI20100305-1-1, date: 05.iii.2010. Paratypes of same date and locality as holotype: 1 juvenile on slide MZNASI20100305-3-2. Paratypes collected at same locality as holotype with date 07.ii.2011: 1 female on slide MZNASI20110207-01; 6 specimens in ethyl alcohol 70%; 3 specimens on stub for SEM. Holotype and 11 paratypes deposited in MZNA.

Description. Female: length 0.93 mm (holotype). White. Dorsal setae well differentiated in microsetae, mesosetae and macrosetae ( Figs 1 View FIGURES 1 – 10 , 16–17 View FIGURES 16 – 20 ).

Head. Antennae slightly shorter than head (Ant/head ratio 0.8–0.9). Ant IV ( Figs 2 View FIGURES 1 – 10 , 11 View FIGURES 11 – 15 ) with 7 thickened sensilla, 1 subapical organite, 1 small sensillum (ms) ( Fig.11 View FIGURES 11 – 15 , enlarged detail) and an apical small entire vesicle. Ant III sense organ ( Figs 11–12 View FIGURES 11 – 15 ) with two sense rods between the two broad sensilla, internally there is another broad sensillum, three cuticular papillae and four guard setae; a sensillum is present on the ventral side of Ant III ( Fig. 3 View FIGURES 1 – 10 ). Ant I and II with 7(6) and 11 setae respectively ( Fig. 11 View FIGURES 11 – 15 ).

Labium with a distal spine-like seta, 2 papillate setae and 11 normal setae. Chaetotaxy of labial region and ventral side of head are showed in Fig. 7 View FIGURES 1 – 10 . Labrum with 2, 4, 2 setae.

PAO with 12 compound vesicles in two rows ( Figs 4 View FIGURES 1 – 10 , 14–15 View FIGURES 11 – 15 ).

Pseudocelli on head with 3-4 (fore pseudocelli) and 3 ridges (hind pseudocelli) ( Figs 4 View FIGURES 1 – 10 , 11 View FIGURES 11 – 15 ). Dorsal chaetotaxy ( Fig. 11 View FIGURES 11 – 15 ) after Najt and Rubio (1978) with a0, d1-5, sd3’, sd1, sd3-4, v1-2, oc3, c2-5, p1-5, g1, g3-g6. Sd3’, v2, p4, p5 and g3 are macrosetae; d5, p2, p3, g5 and g6 are mesosetae; rest of setae are microsetae. Ventral chaetotaxy as in Fig. 13 View FIGURES 11 – 15 .

Body dorsal chaetotaxy is given in Table 1 View TABLE 1 and Figs 16–17 View FIGURES 16 – 20 . Th I with 4+4 mesosetae. On Th II and III m5 is macroseta. On Abd I m5 and m6 are macrosetae. On Abd II and III m5 and m6 are macrosetae. On Abd IV m5, m6 and p2 are macrosetae. On Abd V a2, m4 and m6 are macrosetae. Small microsetae are present on Abd IV (m3 and m4) and Abd V (a1 and m5). Pseudocelli distributed as it follows: 122/22211 ( Figs 1 View FIGURES 1 – 10 , 16–17 View FIGURES 16 – 20 ). Dorsal pseudocelli with 2– 5 ridges within a shallow pit. Lateral pseudocelli without ridges but with some granules within a pit ( Figs 5, 8–10 View FIGURES 1 – 10 ). Abd IV and V without lateral pseudocelli. Abd VI with four anal spines inserted on cuticular papillae and two tubercles as shown in Figs 6 View FIGURES 1 – 10 , 17 View FIGURES 16 – 20 .

Body ventral chaetotaxy is given in Table 1 View TABLE 1 and Fig. 18 View FIGURES 16 – 20 . Th I without setae. Th II–III with 1+1 setae. Abd I with 4+4 setae on distal part of VT and 2+2 on its base. Abd VI with four anal spines inserted on cuticular papillae and two tubercles as shown in Figs 6 View FIGURES 1 – 10 , 17 View FIGURES 16 – 20 . Female genital plate with two microsetae on the anterior half of the plate and three circumgenital setae ( Fig. 18 View FIGURES 16 – 20 ).

Legs ( Figs 19–20 View FIGURES 16 – 20 ). Tita with four long, knobbed hairs. Claw without inner tooth. Unguiculus absent. The chaetotaxy of the legs is given in Table 2 View TABLE 2 .

Bionomy and distribution. All specimens were collected from litter of cork-oak ( Quercus suber ) forests located on the northern slope of Nebrodi Mountains.

Etymology. The species is dedicated to the zoologist Pietro Alicata who helped us in collecting the material.

Remarks. As Neonaphorura alicatai sp. nov. has 3+1 clavate seate on Tita, the key of Tullbergiidae of Dunger (2011) brings to genus Clavaphorura Salmon, 1943 ; but by having Ant III organ with 5 sensory elements Neonaphorura alicatai sp. nov. does not belong to that genus. The alternative step in the key is with weakly developed setae on Tita, but not having Neonaphorura alicatai sp. nov., as other species of Neonaphorura , ventromedial protuberance, the key does not bring to any genus.

The description of the genus Neonaphorura from Dunger (2011) agrees almost entirely with this species except in relation to the number of anal spines additional to the 1+1 distal ones; the range of variation is 2–8 instead of 4–8. For this reason since it is no possible to include Neonaphorura alicatai sp. nov. in the key of genus Neonaphorura given by Dunger (2011), a new key, that considers the expanded range of variation, is given.

The presence of four anal spines on Abd VI situates N. alicatai sp. nov. close to N. ortali Palissa, 2006 . N. alicatai sp. nov. differs from N. ortali by having two dorsolateral tubercles on Abd VI and by the pseudocellar formula (11/122/22211), see the key. Also N. hexaspina Arbea & Mateos, 1991 has two dorsolateral tubercles on Abd VI, but it has six spines.

Figures

Tables

TABLE 1. Chaetotaxy of Neonaphorura alicatai sp. nov.

		Dorsal chaetotaxy	Ventral chaetotaxy
	a	m p	a m p
Th I	–	m1–m4 –	– – –
Th II-III	a1–a6	m1, m3–m5+ms p1, p3–p5	– m1 –
Abd I	a1–a5	m4–m5 p1–p6	– VT 4+2 –
Abd II-III	a1–a5	m3–m6 p1–p6	a0,a1–a4 m0, m2 p1–p4
Abd IV	a1–a2, a5	m3–m6 p1–p2, p4–p6	a0, a1–a5 m1–m2, m5 p1–p3, p5
Abd V	a1–a4, a6	m4–m6 p2–p5	a1–a5 p1–p2