Cingulacarus kermanensis, Kazemi & Klompen, 2024

Kazemi, Shahrooz & Klompen, Hans, 2024, Description of the second species of Cingulacarus Elsen (Acari, Mesostigmata, Diplogyniidae), and notes on the genus, Zootaxa 5397 (2), pp. 225-238 : 227-235

publication ID	https://doi.org/ 10.11646/zootaxa.5397.2.4
publication LSID	lsid:zoobank.org:pub:B8FEFA1C-83DC-4809-B725-72E29115869E
DOI	https://doi.org/10.5281/zenodo.10468632
persistent identifier	https://treatment.plazi.org/id/03998794-FFC5-FFDF-C0CC-CB8BFD8C345F
treatment provided by	Plazi
scientific name	Cingulacarus kermanensis
status	sp. nov.

Treatment

Cingulacarus kermanensis sp. nov.

Diagnosis. Dorsal shield with 39 pairs and one unpaired setae; setae heteromorphic, including five pairs of elongated submarginal setae, two pairs on podonotal and three pairs on opisthonotal regions. Sternal setae st2 longer than st1; setae st3 smooth and almost as long as ½ length of sternal shield medially, and shorter than ½ distance between setae st1 and st3. Ventrimarginal shield with a single seta Zv4, R -series setae inserted on the dorsal shield.

Description

Female

(n=4)

Figures 1–16 View FIGURE 1 View FIGURE 2 View FIGURES 3–6 View FIGURES7–10 View FIGURES 11–13 View FIGURES 14–18 and 19–20 View FIGURES 19–22

Dorsal idiosoma ( Figure 1 View FIGURE 1 ). Dorsal shield 619–661 long, 423–469 wide, with lineate ornamentation throughout, more densely on opisthonotal area, fused to ventrimarginal shields at level of setae s3. Shield with 39 pairs and one unpaired seta, j2 (53–66); setae heterogeneous, including six elongated setae (j1 90–104, s3 90–96, S1 107–122, S3 176–193 and S5 210–232), z1 moderately long, 58–65, dorsomedian setae short (j4–6, J1–2, z5 18–25), setae z2, z6, Z2, s4–5, R3–7 moderately short, 26–36, others 39–62 long; setae mostly with a few small barbs, J5 barbed in distal half. Poroidotaxy and adenotaxy on dorsal shield as in Figure 1 View FIGURE 1 .

Ventral idiosoma ( Figures 2–5 View FIGURE 2 View FIGURES 3–6 , 19 View FIGURES 19–22 ). Tritosternum 86–93 long, with columnar base and lightly pilose laciniae, free for 45–54. Presternal soft cuticle with dense minute spicules, extending sparsely on soft cuticle around gnathosoma ( Figures 2 View FIGURE 2 , 4 View FIGURES 3–6 ). Sternal shields narrow, 36–48 long medially along midline, 94–99 wide at level of setae st1 and 188– 196 at broadest level between coxae II-III; sternal setae st1 and st2 barbed, st3 smooth, st2 (58–71) ≥ st1 (55–69)> st3 (21–24); shield with two pairs of slit-like poroids and one pair of glandular openings. In addition to one pair of pore-like structures posterior to setae st3 ( Figure 4 View FIGURES 3–6 , yellow arrow). Latigynal shields 117–120 long, 54–58 wide at broadest level, shield surface with faint longitudinal lines, with two pairs of smooth setae (anterior 21–23, posterior 24–31), and one pair of gland pores on lateral margins ( Figure 5 View FIGURES 3–6 , inset). Mesogynal shield partially covered with posterior areas of latigynal shield, subrectangular, 44–47 long, 14–17 wide apically and 22 basally ( Figure 5 View FIGURES 3–6 ). Vaginal sclerites club-like, well-developed, without lateral projections ( Figure 4 View FIGURES 3–6 ). Ventrianal shield with transverse lines, bearing six pairs of setae; setae smooth or with a few minute barbs, ventral setae 27–40 long, increasing in size along anterior-posterior axis, para-anal setae finely barbed and slightly longer (49–55); peritrematal shield with longitudinal lines, and two pairs of porous areas, located near the apex of, and near the mid-level of, the peritreme, dorsolateral to coxae I and II respectively, each bearing 3–5 glands ( Figure 14 View FIGURES 14–18 ); also with one gland at mid-level of coxa III and one slit-like poroid at posterior level of coxa II. Peritreme narrow, bearing one gland at mid-level of coxa III, long (239–257), reaching posterior level of coxa I ( Figure 2 View FIGURE 2 ). Paired ventrimarginal shields large, each with only one finely barbed seta Zv4 (33–38), shields flanking ventrianal shield, fused to peritrematal and then dorsal shield anteriorly, and (very narrowly) to each other at their posterior tip ( Figures 19–20 View FIGURES 19–22 ); shield ornamentation, poroidotaxy and adenotaxy as in Figure 19 View FIGURES 19–22 .

Gnathosoma ( Figures 7–9 View FIGURES7–10 ). Gnathotectum subtriangular, with or without minute teeth on anterior margins laterally, with transverse lines of small dorsal projections ( Figure 7 View FIGURES7–10 ). Subcapitulum ( Figure 8 View FIGURES7–10 ) with large hypostome, fringed laterally and extending to anterior level of corniculi; long paired internal malae extending beyond it, with teeth on anteromedian margins, smooth laterally. Labrum blade-like, not projecting beyond the apex of the subcapitulum. Corniculi (co) narrow and horn-like; slightly shorter than narrow salivary stylets. Hypostomal setae h1 and h3 smooth, h3 (47–52) ˃ h1 (39–45), h2 shorter (28–31) finely barbed, subcapitular setae (cs) denticulate (18–20). Deutosternal groove with smooth anterior ridge, following with four denticulate transverse rows, each with 1–5 teeth ( Figure 8 View FIGURES7–10 ). Palptarsus apotele 3–tined, third tine small ( Figure 9 View FIGURES7–10 ); complement of setae on palp segments from trochanter to tarsus: 2, 5, 7, 15, 15, setae mostly smooth; setae d1–3 and al on palpfemur short and thickened, d2 sometimes with a few barbs, pl slightly thickened, barbed ( Figure 9 View FIGURES7–10 ). Second segment of chelicerae 142–146 long, dorsal seta small and smooth; fixed digit 51–55 long, with several (16–18) minute teeth on lateral ridge, and 4–5 minute teeth in addition to apical hook on another adjacent ridge; pilus dentilis vestigial; movable digit 71–75 long, with a large basal tooth and 9–12 small teeth in addition to apical hook; three moderately short brushy excrescences and a longer comb-like structure (slightly reaching beyond anterior tip of movable digit), with short denticles arising from proximolateral surface ( Figures 11–12 View FIGURES 11–13 ).

Legs ( Figures 15–17 View FIGURES 14–18 ). Legs of moderate length, legs I–IV 445–470, 375–395, 350–370 and 450–470 long respectively. Complement of setae on leg segments as Table 1 View TABLE 1 . Three dorsal setae on femur II and one dorsal seta on genu II slightly thickened, and moderately long, but not longer than the segment length ( Figure 15 View FIGURES 14–18 ). Seta pd1 on genua III and IV elongate, length exceeding 1.5 x segment length ( Figures 16–17 View FIGURES 14–18 ).

Male

(n=4)

Figures 6 View FIGURES 3–6 , 10 View FIGURES7–10 and 13 View FIGURES 11–13

Dorsal idiosoma. Idiosoma length 593–625, width 391–437. Dorsal shielding, chaetotaxy, poroidotaxy and adenotaxy similar to female. Length of elongated setae: j1 90–98, s3 81–86, S1 91–112, S3 150–171 and S5 194–221; setae j2 46–53, z1 51–53 long, dorsomedian short setae j4–6, J1–2, z5 17–23 long, moderately short setae z2, z6, Z2, R3–7 28–35 long, other setae 40–51 long.

Ventral idiosoma ( Figure 6 View FIGURES 3–6 ). Males with a holoventral shield (genito-ventrianal fused to peritrematal shield and podal elements). Genital opening and base of tritosternum covered by sternal shield. Tritosternum long (79– 90), with columnar base and lightly pilose laciniae, free for 46–52. Sternal and peritrematal regions of shield with longitudinal and oblique striae, ventral region of the shield with transverse striae. Sternal setae st1 and st2 subequal in length (47–52), slightly thickened and longer than other sternal setae (23–35), st1 dentate, other sternal setae smooth; shield with one porous area medially beyond level of sternal setae st3, usually bearing four glandular openings, rarely with only one ( Figure 6 View FIGURES 3–6 ). Para-anal setae (47–53) longer than ventral setae (25–38). Ventral characters as in the female. Ventrimarginal shield similar to female, seta Zv4 30–37 long.

Gnathosoma ( Figures 10 View FIGURES7–10 and 13 View FIGURES 11–13 ). Second segment of chelicera 127–136 long, fixed digit 37–43 long, movable digit 53–60 long; with two brushy excrescence, almost as long as movable digit, and a short thumb-like structure ( Figure 13 View FIGURES 11–13 ). Length of hypostomal and subcapitular setae: h3 (41–49) ˃ h1 (33–36) ˃ h2 (24–27) ˃ cs (17–19). Palps (179–185) long, setae d1–3 and pl on palpfemur similar in shape and length, slightly thickened and barbed, seta al slightly thickened, smooth and short ( Figure 10 View FIGURES7–10 ). Other characters similar to female.

Legs. Length of legs I–IV as follows: 432–436, 374–386, 343–355 and 413–443. Leg chaetotaxy and structures similar to those of female.

Material examined

Holotype: female, southeastern Iran, Kerman Province, Jiroft County, under elytra of Oryctes elegans L. (Col., Scarabaeidae ) collected near a date palm grove (28°40’20.6” N, 57°48’46.3” E, 670 m above sea level), 30 March 2010, coll. S. Kazemi, will be deposited in Acarological Collection, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran ( ACISTE) GoogleMaps . Paratypes. 5 females and 4 males, same locality and collection data, deposited in ACISTE; 2 females and 2 males, same locality and collection data, deposited in OSU [ OSAL 159079–159082 ] . 4 females and 3 males, southeastern Iran, Kerman Province, Bam County, under elytra of O. elegans collected in a date palm grove (29°06’38.8” N 58°22’09.0” E, 1053 m above sea level), 24 April 2019, coll. S. Kazemi, deposited in ASISE. GoogleMaps

Etymology. The species is named after its type locality, Kerman Province, Iran.

Sexual dimorphism in Cingulacarus

The adult female and male of Cingulacarus , not only show differences in the cheliceral excrescence ( Figures 11– 13 View FIGURES 11–13 ), but also in the dorsal setae of the palp femur. These palp setae are thickened, smooth (d2 with a few barbs) and short in the female and slightly thickened, plumose, and moderately long (longer than the distances between their bases) in the male ( Figures 9–10 View FIGURES7–10 ).