Armascirus orientalis Kalúz, Ermilov & Vrabec, 2014, sp. nov.
Creators: name: Kalúz, Stanislav
name: Ermilov, Sergey G.
name: Vrabec, Michal
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Cunaxidae
Armascirus
Armascirus orientalis

description: Armascirus orientalis sp. nov.
Diagnosis (female). This species is similar to A. limpopoensis Den Heyer, A. bakeri Smiley and A. harrisoni Smiley. It can be distinguished from the female of A. limpopoensis by having the palpal telofemur with 1 apophysis and an equal distance between setae c1–c1 and d1–d1, (c1–c1 = d 1–d1) (A. limpopoensis bears 2 apophyses and c1–c1 = two times distance d1–d1). A. bakeri has 1 splas and 3 sts on the palpal tibiotarsus, while the palpal tibiotarsus in A. orientalis bears 1 splas and 4 sts. A. harrisoni differs from A. orientalis by having the distance between c1–c1 = two times width of hysterosomal median shield, and this shield is smaller, oval and wider (width = two times length). In A. orientalis the distance between c1–c1 = width of hysterosomal median shield, and the shield is bigger and triangular (anterior width=length).
Description. Female [holotype, paratype]—body length [425,574] width [282,396], respectively, 2 specimens measured.
Dorsum (Fig. 6). Propodosoma with finely reticulate subrectangular shield, cone-shaped distally. Propodosomal shield reaching to anterior region of hysterosoma, bearing a pair of anterior (vi) and posterior (sce) setose trichobothria and also two pairs of tactile setae (ve, sci). Anterior trichobothrium [363, 398], posterior trichobothrium [491, 471] long, distance between bases of vi–vi and sce–sce [31, 31] and [204, 247], respectively. Propodosoma separated from hysterosoma by fine striae. Hysterosoma with finely reticulate hysterosomal median shield, lateral hysterosomal platelets absent. Six pairs of tactile dorsal setae present on hysterosoma; c2, c1–h1. Short setae c1 and c2 about equal in length [9, 9] [11, 11], respectively; d1 [9, 11], following setae longer and increasing in length: e1 [11, 13], f1 [25, 27] and h1 [31, 37]. Distance between bases of setae c1–c1 [72, 77] about eight times length of c1; d1–d1 [69, 77] about seven times length of d1; e1–e1 [86, 91] about six – seven times longer e1; f1– f1 [78, 92] more than three times length of f1; h1–h1 [36, 40] nearly equal the length of h1.
Venter (Fig. 7). Coxal plates weakly sclerotized, coxae I–II and III–IV contiguous and finely reticulate, like to those of dorsal shields. Setal formula of coxae I–IV: 3–2–3–3 sts. Venter of hysterosoma (Fig. 7) with a pair of centro-medial simple setae [15, 17] on longitudinally striated integument between coxae III, and with four pairs of hysterogastral setae [23, 25] on transversally striated integument arranged anteriorly to genital plates. Four pairs of simple setae on weakly sclerotized genital plates, setae nearly equal in length [19, 25–22, 25–25, 28–28, 29] (anterior to posterior in holotype and paratype), respectively. One pair of simple setae [15,11] on anal plate and two pairs of adjacent setae [18, 22] close to anal plates.
Gnathosoma (Fig. 8). Five segmented palp [370, 437] long, with palpal tibiotarsus apically curved. Palp with finely punctate surface and bare tibiotarsus. Palpal chaetotaxy as follows: trochanter—bare, basifemur—1 dorsomedial sts [12, 13 long]; inner surface of telofemur with 1 latero-medial apophysis [unmeasurable in holotype, 43], stout dorso-distal spls [17,21]; inner ventral surface of genu with 1 ventro-proximal spls [29, 38], ventro-medial spls [15, 21], 1 elongate ventro-distal apophysis [85, 93], 1 latero-distal spls [17, 23], dorsally with 1 distal sts [9, 11], palpgenual apophysis four–five times long as adjacent spine-like seta; tibiotarsus inner surface with 1 simple proximal seta [34, 38] and medially with 1 stout spls [15, 17]; outer surface with 1 dorso-medial sts [8, 11]; 1 dorso-lateral sts [9, 11], dorsal terminal solenidion [14, 12] and terminating with a small short claw.
Chelicera slender and long [239, 262], cheliceral segment I as well as the proximal part of segment II with randomly placed papillae, a single distal seta [18, 17] present.
Subcapitulum (Fig. 9) subrectangular, distally cone-shaped subcapitulum with two pairs of short adoral setae and four pairs of hypognathal setae (hg). Setae hg4 [74, 63 long] about two times longer than hg2 [30, 37], three times longer than hg1 [23, 25] and nearly six–seven times longer than hg3 [11]. Coxal region of subcapitulum with randomly placed fine papillae, latero-proximal part finely punctate.
Legs (Fig. 10). All legs with fine punctuation, legs I–III shorter than leg IV. Chaetotaxy I–IV as follows: coxae 3–2–3–3 sts, trochanters 1–1–2–1 sts; basifemora 5–5–4–2 sts; telofemora 4–4–4–4 sts; genu I—3 asl, 1 mst, 5 sts; genu II—1 asl, 6 sts; genu III—6 sts; genu IV—6 sts; tibia I—(1 asl, 1 ms), 5 sts; tibia II—(1 asl, 1 sts), 4 sts; tibia III—1 bsl, 5 sts; tibia IV, 1 smooth T, 4 sts; tarsus I—1 fam, 4 asl, 1 tsl, 16 sts; tarsus II—1 bsl, 1 tsl, 16 sts; tarsus III—1 tsl, 14 sts; tarsus IV—1 tsl, 15 sts.
Length of leg segments I–IV (coxa and trochanter not measured): Basifemur [92, 112]–[85, 100]–[89, 97]–[112, 103]; Telofemur [71, 74]–[53, 69]–[49, 65]–[53, 54]; Genu [29, 35]–[31, 36]–[38, 49]–[46, 63]; Tibia [34, 46]–[32, 39]–[58, 68]–[72, 76]; Tarsus [185, 212]–[157, 189]–[177, 215]–[189, 227], respectively.
Male and developmental stages. Unknown.
Material studied. Holotype: female on slide, Vietnam, Dong Nai Biosphere Reserve, N–11°25`, E–107°25`, lowland Lagerstroemia -dominated forest on dark loamy soil, samples of bird's nest fungi Cyathus sp. on decaying twigs, 1 July 2012, coll. A.E. Anichkin and S.G. Ermilov; Paratype: 1 female on slide, Vietnam, Dong Nai Biosphere Reserve, N–11°25'44", E–107°25'39", polydominant forest consists of Lagerstroemia calyculata Kurz with an admixture of Tetrameles nudiflora R. Br. and Haldina cordifolia (Roxb.) Ridsdale, litter (sifting), July 2012, coll. A.E. Anichkin and S.G. Ermilov. Type material is deposited in Slovak National Museum, Bratislava, Slovakia.
Etymology. The name of a new species is derived from the territory of its occurrence (East).
description: Published as part of Kalúz, Stanislav, Ermilov, Sergey G. & Vrabec, Michal, 2014, Two new species of the genus Armascirus (Acari: Prostigmata: Cunaxidae) from India and Vietnam, with a description of the preimaginal stage of Armascirus fendai, pp. 237-250 in Zootaxa 3835 (2) on pages 243-248, DOI: 10.11646/zootaxa.3835.2.4, http://zenodo.org/record/231526