Stigmaeus glabrisetus Summers

Dönel, Güldem & Doğan, Salih, 2011, The stigmaeid mites (Acari: Stigmaeidae) of Kelkit Valley (Turkey), Zootaxa 2942, pp. 1-56 : 47-49

Stigmaeus glabrisetus Summers

Stigmaeus glabrisetus Summers, 1962

Female ( Figures 24 , 25 ). Length of body 398 (390–405), width 200 (190–210).

Dorsum. All dorsal shields with reticulum. Propodosomal shield with three pairs of setae and a pair of postocular bodies, 100 (95–105) in diameter, located between setae ve and sci. Eyes absent. Setae sce placed on small shields. These shields located near the propodosomal shield. Central shield with two pairs of setae. Setae e 1 placed on median zonal shields and setae e 2 located on lateral zonal shields. Setae d 2 located on marginal shields. Intercalary shield divided, with setae f 1. Suranal shield entire, with two pairs of setae. Setae ve and c 2 long and flagelliform, other dorsal body setae spinulate distally. Dimensions of setae as follows: vi 51 (45–55); ve 88 (85–90); sci 41 (40– 45); sce 50 (48–53); c 1 45 (40–50); c 2 92 (88–95); d 1 43 (40–45); d 2 51 (45–55); e 1 35 (30–40); e 2 62 (55–68); f 1 56 (52–60); h 1 40 (37–43); h 2 55 (48–60). Distances between setae: vi-vi 31 (28–35); ve-ve 68 (65–70); vi-ve 45 (48– 50); sci-sci 136 (130–143); ve-sci 50 (45–55); sce-sce 178 (168–195); c 1 -c 1 65 (60–68); c 1 -d 1 80 (75–85); d 1 -d 1 79 (75–83); f 1 -f 1 100 (90–110); h 1 -h 1 39 (38–40); h 2 -h 2 90 (87–93); h 1 -h 2 29 (28–30).

Venter. Humeral shields bearing setae c 2. The pattern on humeral shields similar to that of dorsal shields. Coxisternal shields separated, bearing three pairs of setae. Aggenital shield with three pairs of setae. Contiguous genital and pseudanal covers bearing four pairs of setae (g 1, ps 1, ps 2, ps 3). Dimensions of setae as follows: ag 1 10 (7–13); ag 2 11 (8–15); ag 3 10 (8–13); g 1 15 (13–18); ps 1 32 (30–35); ps 2 23 (20–28); ps 3 25 (23–28). All ventral shields with reticulum.

Legs. Leg I 225 (210–240), leg II 185 (175–193), leg III 155 (145–163), leg IV 190 (178–200). Chaetotaxy of leg segments as follows: coxae 2–2–2–2, trochanters 1–1–2–1, femora 6–5–3–2, genua 4(κ)–4(κ)–1–1, tibiae 7(ϕ,ϕρ)–6(ϕρ)–6(ϕρ)–6(ϕρ), tarsi 14(ω)–10(ω)–8(ω)–8(ω). Genua I and II with solenidion κ. All tarsi with solenidion ω. Macrosetae d 83 (78–90), setae l' 40 (38–43); ratio d / l' 2.1.

Gnathosoma . Chelicera 135 (125–143), palp 140 (130–148). Subcapitulum with two pairs of adoral setae distally and two pairs of subcapitular setae proximally. Dimension of setae: m 15 (13–18); n 13 (10–15), distances between setae: m-m 16 (15–18); n-n 23 (20–25).

Male. Not observed.

Materials examined. 2 ƤƤ from decayed bark of Pinus sp., 40°16'52'' N, 39°38'17'' E, 1800 m, Köse Mountain, 21 IX 2007; 3 ƤƤ from bark of Pinus sp., 40°16'19'' N, 39°38'07'' E, 1828 m, Köse Mountain, 21 IX 2007; 10 ƤƤ from litter under Quercus sp., 39°53'56'' N, 39°23'32'' E, 1920 m, Kelkit, 21 IX 2007; 1 Ƥ from decayed bark of Pinus sp., 40°18'27'' N, 37°35'01'' E, 996 m, Reşadiye, 11 V 2008; 10 ƤƤ from house ant, 40°16'52'' N, 39°38'12'' E, 1804 m, Köse Mountain, 29 IX 2008; 3 ƤƤ moss on bark of Pinus sp., 40°16'52'' N, 39°38'12'' E, 1804 m, Köse Mountain, 29 IX 2008; 1 Ƥ from decayed bark of Quercus sp. 40°15'33'' N, 38°56'56'' E, 1703 m, berween Çamoluk-Alucra, 26 X 2008; ZMAU.

Distribution. U.S.A. ( Summers 1962) and Turkey (this paper).

Remarks. This species was known only from the U.S.A. ( Summers 1962). This is the second record of the species. The Turkish specimens resemble Stigmaeus glabrisetus in general appearance, but apodemal marking is not evident and the ratio d / l' is 2.6 in U.S. A specimens, but 2.1 in the Turkish specimens.

Figures

FIGURE 24. Stigmaeus glabrisetus female—A, dorsal view of idiosoma; B, ventral view of idiosoma; C, dorsal setae.

FIGURE 25. Stigmaeus glabrisetus female—A, leg I; B, leg II; C, leg III; D, leg IV; E, palp; F, ventral view of gnathosoma.