Anamastigona cypria, Vagalinski & Golovatch, 2016

Vagalinski, Boyan & Golovatch, Sergei I., 2016, Two new species of Anamastigona from Cyprus and an updated key to species of the genus (Diplopoda: Chordeumatida: Anthroleucosomatidae), European Journal of Taxonomy 227, pp. 1-19 : 3-7

Anamastigona cypria sp. nov.

urn:lsid:zoobank.org:act:FD1105FF-4E6D-4851-A5B6-477FFDD8DFD2

Figs 1–3

Anamastigona sp. 1 – Vagalinski et al. 2014: 540 , fig. 12.

Diagnosis

Resembles its most similar congeners – A. terraesanctae and A. strasseri sp. nov. – by the anterior gonopods possessing well-developed colpocoxites and an elaborate median lamella, which is more or less densely covered with long, setiform filaments; and by the posterior gonopods consisting of large, relatively stout angiocoxites, bearing several setae and rather prominent telopodital rudiments, and of fine, membranous colpocoxites. Differs from them by being on average slightly smaller, with a somewhat darker colouration, and by certain details of gonopod structure, namely, the lateral arms of the anterior gonopods branching distally into 2 processes and by the presence of a subapical unciform process on the angiocoxites of the posterior gonopods; further morphological differences between the 3 species are summarized in Table 1 .

Etymology

The epithet of this new species emphasizes its provenance from Cyprus.

Type material

Holotype CYPRUS: ♂ (intact), FC0022 , Nicosia, Pediaios, stream under Eucalyptus , S4, 27 Nov. 2011– 15 Jan. 2012, pitfall traps, Simaiakis, Stylianou & Tambouri leg. ( NHMC).

Paratypes CYPRUS: 3 ♂♂ (intact, 1 half-broken in the caudal part), 1 ♀ (with heavily damaged and fragmented head and front body, right vulva mounted on slide), same sample as holotype ( NHMC) ; 1 ♂ (in 2 pieces, with broken distal parts of antennae, gonopods mounted for SEM), FC0060 , Nicosia, Troodos Mts, 4 km before Prodromos square, pine forest next to the road, 1305 m, 11 Feb.–19 Mar. 2012, pitfall traps, Simaiakis leg. ( NHMC); 1 ♂ (in 2 pieces, gonopods dissected), FC0019 , Nicosia, Athalassas Park South, corridors with Eucalyptus , S1, 27 Nov. 2011 – 15 Jan. 2012, pitfall traps, Simaiakis, Stylianou & Tambouri leg. ( ZMUM); 2 ♂♂ (one dissected, in 2 parts + pleurotergum 7, with gonopods mounted for SEM, the other into head, collum and 3 body pieces; gonopods, antenna, legs 1, 3, 5, 7 and 15 mounted on slide), FC0009 , Troodos Mts, 2.5 km after Prodromos square, mixed pine forest, 1615 m, 18 Oct.–26 Nov. 2011, pitfall traps, Simaiakis & Louca leg. ( NMNHS).

Description

MEASUREMENTS. With 30 segments including telson, with 1–2 legless segments; males 7.2–9.2 mm in length, 0.6–0.65 in height at mid-body and 0.75–0.8 mm maximal width; holotype 9.1 mm long; the female somewhat longer than the males (exact length impossible to measure due to the damaged frontal part), 0.75 mm high at mid-body, 0.95 mm maximal width (at segments 25–26).

COLOURATION. Visibly faded on most specimens. Mostly brown, with scattered, small, bright spots and veins, giving a marble-like pattern to the tegument; prozonae on posterior segments dorsally blackish; with smaller, oval, bright spots just above shoulders; sterna yellowish-beige; legs beige to light brown.

EXTERNAL STRUCTURES. Tegument smooth, only hind margins of pleuroterga very finely and sparsely striated dorsally.Head with20–24ocelli, arranged in8oblique rows:1 +1+2 +3+ 4+4(5)+3 (4, 5) + 2(3), counting from hind lower corner of ocellarium. Head moderately setose: vertex, frons, labrum and mandibular cardines more or less evenly covered with short, stout setae, these latter being somewhat longer on labrum and distal part of frons. Frons in males flat to gently convex. Antennae ( Fig. 2A ) almost 2 times as long as head; antennomeres 2 and 4 subequal, somewhat longer than 6, antennomere 3 ca 2 times longer than 4, slightly shorter than antennomere 5. Labrum with 3 small, rounded marginal teeth. Gnathochilarium with a rather large, broad, subtriangular promentum, about half as long as stipites. Collum smooth, without median groove. In width, collum <segment 2 <3 <4 <head = 5 = 8–18 (19) <6 = 7 (males), after segment 19 increasingly narrowed towards telson. Axial suture well-developed, narrow. Stricture between pro- and metazonae quite wide and rather shallow. Paraterga small, somewhat edgy dorso-lateral swellings, forming a mild ridge between lateral and median macrochaetae; most prominent on segments 8–19, then gradually diminishing towards telson, completely disappearing on segments 28 and 29. Metatergal setation typical, macrochaetae 0.12–0.2 mm long, on same segment more or less equal in length; CIX (15) = 0.5–0.6, MIX (15) = 1.3, MA (15) = 135–145º. Pleurotergum 7 unmodified. Epiproct short, broad, truncated caudally, with a straight to slightly rounded caudal margin; medially with a pair of two long setae, distally with a row of 7 short setae. Paraprocts with 3 long marginal setae each. Hypoproct semi-elliptic, with 3 long marginal setae.

MALE LEGS. Pairs 1 ( Fig. 2B ) and 2 significantly shorter and thinner than following ones, mesally with fine, short setae, forming tarsal brushes; coxa 2 ventrally with a gland opening; pairs 3 ( Fig. 2C ) and 4 conspicuously thick, each with a stout, shortly bifurcated bump dorso-parabasally on prefemur; 5–7 increasingly longer, 5 ( Fig. 2D ) with a short, thorn-like process anteriorly on prefemur, 7 ( Fig. 2E ) with an extremely long tarsus, the latter more than 2 times as long as postfemur + tibia; coxa 10 ( Fig. 2F ) ventrally with small tubercle protruding from gland opening; coxa 11 ( Fig. 2G ) ventrally with blunt process; following pairs without modifications; leg 24 ( Fig. 2H ) 1.25–1.4 times as long as mid-body height, its tarsus 1.8–1.9 times longer than postfemur + tibia.

GONOPODS ( Fig. 3 A–F). Anterior gonopods ( Fig. 3 D–F) fused in their proximal parts, consisting of two lateral arms (la), each divided distally into two processes – a larger posterior (pp) and a smaller anterior one (ap), both processes tapering and bent caudad; a lamellar median part (l), densely covered with long setiform filaments; and two elongated colpocoxites (c), each ending apically as lamellar outgrowths (lo), basally surrounding a subtriangular central depression (s). Posterior gonopods ( Fig. 3 A–B) reduced; angiocoxites (a) elongated, relatively stout, somewhat tapering, subapically bearing thin, unciform process (up) bent caudad, caudal face microsquamate, bearing several setae; telopodital rudiments (te) lobe-like, pigmented, positioned caudo-laterobasally on a; colpoxites (k) placed close to each other, considerably shorter than a, slender, weakly chitinized.

VULVA ( Fig. 3G ). Compact, box-like, somewhat meso-laterally compressed; opening (o) positioned mostly apically on bursa, narrow; operculum equal to bursa, with shallowly bifurcated apex; setation rather short, present only on distal parts of bursa and operculum. Receptaculum seminis double, consisting of larger, somewhat bent posterior tube (pt) and smaller, more or less straight central tube (ct).

Figures

Fig. 1. External habitus of Anamastigona cypria sp. nov., ♂, paratype from Nicosia, Pediaios. A. Anterior part of body, dorsal view. B. Anterior part of body, lateral view. C. Middle part of body, lateral view. D. Posterior part of body, lateral view. Scale bars = 0.5 mm.

Fig. 2. Non-gonopodal characters of Anamastigona cypria sp. nov., ♂♂, paratypes. A. Antenna (setae omitted). B. Leg 1. C. Leg 3. D. Leg 5. E. Leg 7 (claw broken off). F. Leg 10. G. Leg 11. H. Leg 24. Scale bar = 0.2 mm.

Fig. 3. Genitalia of Anamastigona cypria sp. nov., paratypes (♂: A–F; ♀: G) from Nicosia, Troodos Mts, 4 km before Prodromos square. A. Posterior gonopods, caudal view. B. Left angiocoxite of the posterior gonopods, caudal view. C. Same aspect, mid-part strongly magnified. D. Anterior gonopods, lateral view. E. Anterior gonopods, caudal, slightly lateral view. F. Same aspect. G. Left vulva, caudal view (setae omitted; receptaculum seminis seen by transparency, but drawn with solid lines for better emphasis). Abbreviations: a = angiocoxite; ap = anterior process; c = colpoxites of anterior gonopods; ct = central tube; l = lamellar median part; la = lateral arm; lo = lamellar outgrowth; k = colpoxites of posterior gonopods; o = opening; pp = posterior process; pt = posterior tube; s = central depression; te = telopodital rudiment; up = unciform process. Scale bars (drawings) = 0.1 mm.