Cryptonura abmalensis Arbea, Yahyapour & Shayanmehr 2022, sp. nov.
Creators: name: Yahyapour, Eliye
name: Shayanmehr, Masoumeh
name: Vafaei-Shoushtari, Reza
name: Arbea, Javier I.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Poduromorpha
Neanuridae
Cryptonura
Cryptonura abmalensis

description: Cryptonura abmalensis Arbea, Yahyapour & Shayanmehr sp. nov.
Figs 16−25, Tab. 2a & b
Type locality. Iran, Mazandaran Province, Sari county, Abmal forest, 36º42ʹ52ʺ N, 53º06ʹ00ʺ E, 10 m a.s.l.
Type material. Holotype: female on slide in MNCN. Iran: Mazandaran Province, Sari county, Abmal forest, 23 April 2016, soil and leaf litter, Berlese extraction, Eliye Yahyapour leg. Paratypes: 4 females, 1 male and 3 juvenile on slide in MNCN (4 paratypes) and SANRU (4 paratypes), same data as holotype.
Etymology. The species was named after the type locality, Abmal forest.
Diagnosis. Habitus typical of the genus Cryptonura. Colour of the body bluish-gray, 2+2 eyes darkly pigmented. Dorsal tubercles present and well developed, triangular in shape. Buccal cone rather long, labrum ogival. Head with chaetae B, C and E. Chaetae A and O absent. Tubercles Af and Cl fused. Tubercles Dl and (L+So) on head with 6 and 9 chaetae respectively. Tubercle Di on Th I with 1 chaeta. Tubercles De on Th II and III with 2+s and 3+s chaetae respectively. Tubercles L on Abd III and IV with 4 and 8 chaetae, respectively. Macrochaetae Ml relatively long. Cryptopygy present, poorly developed. Claw without inner tooth.
Description. Habitus typical of the genus. Head and tergite tubercles well developed. Body length (without antennae): 1.8–2.8 mm ♀, 2.1 mm ♂ (holotype ♀: 2.4 mm). Colour of the body bluish-gray. 2+2 eyes relatively small (diameter of ocellus equal to diameter of alveolus Ocp), darkly pigmented (Fig. 16).
Chaetal morphology. Dorsal ordinary chaetae of five types: Macrochaetae Ml relatively long, strongly thickened, almost cylindrical, arclike or straight, narrowly sheathed, apically rounded; lateral macrochaetae longer, less serrated and thinner apically; short macrochaetae Mc and Mcc thickened, straight and blunt; macrochaetae densely covered by minute denticles. Mesochaetae smooth or feebly serrated and pointed. Smooth microchaetae shorter, acuminate and thin. S-chaetae of tergites thin, smooth and shorter than closest Mc.
Antennae. Antennae shorter than head. Chaetotaxy of antennae as in Tab. 2b and in Figs 21−22. Ant I with 7 chaetae: 2 long (Ml) and 3 shorter (Mc) thick and ciliate, others smooth, and few subcuticular reticulations. Ant II with 12 chaetae: 3 long (Ml) and one shorter (Mc), thick and ciliate chaetae, and others smooth. Ant III and IV dorsally fused, with subcuticular reticulation. Ant III with 16 ordinary chaetae (group d with 4 chaetae) and 5 S-chaetae of AIIIO, guard chaetae Sgd and Sgv slightly shorter and slender than S-chaetae of Ant IV. Eight subequal S-chaetae (S1–S8) on Ant IV, S1 thinner than others (Fig. 21); Ant IV organite as a very small rod, almost entirely burried in the integument; apical bulb poorly developed, trilobed, fused to Ant IV tip.
Ventral side of head: Vi=6, Ve=10- 11(4 Vea, 3 Vem and 3-4 Vep).
Antenna: Ant I, II with 7, 12 chaetae.
Ant III with 16 ordinary chaetae (5 ve, 4 vc, 3 vi and 4 d), 5 S-chaetae (AIIIO).
Ant IV dorsally with the complete set of chaetae (or, 8 S, i, 12 mou, 3 brs).
Ant IV ventrally with the complete set of chaetae (3 brs, 2 iv; ap: 6 bs, 5 miA; ca: 3 bs, 3 miA; cm: 3 bs, 1 miA; cp: 7 miA, 1 brs).
Mouthparts. Buccal cone elongated. Labrum pointed, with ventral sclerifications ogival. Labrum chaetotaxy with 0/2,2 smooth chaetae of different sizes, prelabral chaetae absent. Labium with 11 chaetae: a1, a2, p2, E, F, G, b, c, d, e and f. Labial papillae x not detected. Maxilla styliform (Fig. 19), mandible thin with four teeth, being two basal stronger, unequal teeth and two smaller, subequal apical teeth (Fig. 18).
Dorsal chaetotaxy and tubercles. Chaetotaxy of head as in Tab. 2a and Figs 16 and 24, with 11 chaetal groups: Cl+Af, 2 Oc, 2 Di, 2 De, 2 Dl, 2 (L+So). Tubercles Cl and Af fused (Fig. 24); chaetae A and O absent; tubercle Dl with 6 chaetae, chaeta Dl6 as mi (Fig. 23); tubercle (L+So) with 9 chaetae. Chaetotaxy of Th and Abd as in Tab. 2b and in Figs 16–17 and 25. Number of tubercles from Th I to Abd VI on half notum is: 3,4,4/4,4,4,4,2,1. S-chaetotaxic formula on Th I to Abd V as 0,2+ms,2/1,1,1,1,1; body s-chaeta thin and smooth, distinctly shorter than closest Mc (Fig. 25). Tubercles Di on Th I with 1 chaeta; tubercles Di on Th II–III with 3 chaetae; chaetae De2 on Th II–III and De3 on Th III connected with tubercle De (Fig. 25); chaetae De3 on Abd I–III connected with tubercle De (Fig. 3); tubercle L on Abd III and IV with 4 and 8−9 chaetae, respectively; tubercles Di on Abd V with chaetae Di2 as Mc and Di3 as Mcc. Cryptopygy poorly developed; Abd VI hardly visible from dorsal side (Figs 17 and 20).
Ventral chaetotaxy. On head, groups Vea, Vem and Vep with 4, 3, 3−4 chaetae, respectively; group Vi with 6 chaetae (Fig. 23). On Abd IV, furcal vestige with 5−6 chaetae, devoid of mi but with a small posterior area of primary granulation. Ventral chaetae Vl and L' on Abd V present (Fig. 20).
Legs. Chaetotaxy of legs as in Tab. 2b. Tibiotarsi with chaetae B4 and B5 short. Claw without inner tooth.
Ratios. Chaetae A: B: Ocm: Ocp: Di1 on Abd IV: Di1 on Abd V: Claw III = −: 34: 31: 24: 54: 47: 10
Remarks. C. abmalensis sp. nov. seems to be closest to C. maxima and C. persica described from the northern part of Iran (Smolis et al. 2012). All three species have blue body colour, triangular dorsal tubercles and a similar chaetotaxy of central area of the head (C and D chaetae present), one Di chaeta on Th I, 2,2,3/3,3,3 De ordinary chaetae on Th I–Abd III, respectively, and 3 Di chaetae on Abd V. However, these species differ in another set of characters: number of mandibular teeth (in C. abmalensis sp. nov., four teeth; in C. maxima and C. persica, three), the fusion of Cl and Af tubercles on head (in C. abmalensis sp. nov. and C. persica, fused; in C. maxima, present), the presence of A chaetae on head (in C. abmalensis sp. nov., absent; in C. maxima and C. persica, present), the number of Dl and L+So chaetae on head (in C. abmalensis sp. nov., 6 and 9, respectively; in C. maxima, 6 and 10; in C. persica, 5 and 8), the number of Di chaetae on Th II–III (in C. abmalensis sp. nov. and C. maxima, 2; in C. persica, 3), the number of L chaetae on Abd IV (in C. abmalensis sp. nov. and C. maxima, 8–9; in C. persica, 6–7) and the number of De+Dl+L ordinary chaetae on Abd V (in C. abmalensis sp. nov. and C. persica, 5; in C. maxima, 6–7). The main diagnostic characters of these species are summarized in Tab. 5.
description: Published as part of Yahyapour, Eliye, Shayanmehr, Masoumeh, Vafaei-Shoushtari, Reza & Arbea, Javier I., 2022, New species and records of Neanurinae (Collembola: Neanuridae) from Mazandaran Province (Northeastern Iran), with a key to Iranian species of the subfamily, pp. 253-274 in Zootaxa 5087 (2) on pages 258-261, DOI: 10.11646/zootaxa.5087.2.2, http://zenodo.org/record/5824073