Copidognathus tabellio
Creators: name: Durucan, Furkan
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Halacaridae
Copidognathus
Copidognathus tabellio

description: Copidognathus tabellio (Trouessart, 1894) (Figs. 10A–L, Table 4)
Morphology and notes
Integument of the specimens have brown pigmentation.
Female – Porose areolae on dorsal and ventral plates with typical rosette pores. AD with three porose areolae. OC with two corneae. PD with a pair of costae two rosette pores wide. Glp-1 on AD near anterolateral margin of the plate. Ds-1 on AD almost as same level as glp-1. Ds-2 on OC. Ds- 3 in margin of PD (Fig. 10A). GA truncate anteriorly with three pairs pgs and one pair of sgs. Ovipositor extending tip levels with pgs-1 (Fig. 10B). AE with a pair of epimeral pores and three pairs of ventral setae. PE with one dorsal and three ventral setae (Fig. 10B).
Gnathosoma (Fig. 10G) 1.7 times longer than wide. Rostrum triangular, extending beyond P2. Tectum triangular, Palps are slender and consist of four segments. P1 to P4 lengths 13, 34, 10, 40 respectively. P1 and P3 without setae, P2 with single seta, P4 with three setae at basal whorl. Leg I 185 long (Fig. 10H). Telofemur I laterally reticulated. Length: height ratio 2.0. Tibia IV has five smooth setae. Tarsi IV with 3 dorsal setae (Fig. 10I). All legs (Figs. 2 I-O) slender and long but shorter than idiosoma. On the surface of telofemora, genua and tibiae I and II foveate with rosette pores. Leg chaetotaxy from trochanter to tarsus (bipectinated setae between parentheses, parambulacral setae and solenidia excluded): leg I: 1, 2, 5, 4, 7(2), 6 5; leg II: 1, 2, 5, 4, 6(2), 3; leg III: 1, 2, 3, 3, 5(1), 4; leg IV: 0, 2, 3, 3, 5(1), 3. Tibiae I to IV with 2, 2, 1, 1 bipectinate setae. Tarsi I to IV with 3, 3, 4, 3 dorsal setae and 3, 0, 0, 0 ventral setae. All legs with two lateral claws with accessory process but large pectines (oil immersion) and a small bidentate median claw.
Male – Male is similar to female except for the genital plate (Fig. 10C). GO surrounded by 24 pgs. Spermatopositor large (110), extending beyond ring of pgs. Four pairs of sgs are present; anterior pairs of sgs hair-like, posterior ones spur-like. GO 50 long, 30 wide. Distance between edges of GA and GO 82.
Protonymph – Idiosomal length of only one specimen 275. Porose areolae and a pair of costae of dorsal plates with rosette pores. AD with three porose areolae and glp-1 on lateral margin of the plate. OC longer than wide. PD anteriorly ovate. Ds-1 on anterior edge of porose areaolae on AD. Pairs of ds-2 and ds-3 on striated integument. Ds-4 and ds-5 on PD. AE with three setae and pair of epimeral pore. GP small, ovate, a genital acetabula. No setae on genital plate (Fig. 10J, K). Gnathosoma longer than wide (Fig. 10G). Solenidion on tarsi I 14 long (Fig. 10L). Legs with two lateral claws (Fig. 10L) with accessory process and a small bidentate median claw. Fossa membrane well-developed in tarsi I and II, while slender in tarsi III and IV. Leg chaetotaxy from trochanter to tarsus (bipectinated setae between parentheses, parambulacral setae and solenidia excluded): leg I: 1, 2, 3, 4, 5(1), 6; leg II: 1, 2, 3, 4, 4(1), 3; leg III: 1, 1, 2, 3, 5(1), 4; leg IV: 0, 1+2 (basifemur + telofemur), 3, 5(1), 3. Each of tibiae I to IV with one bipectinate setae. All legs with two lateral claws with accessory process but large pectines (oil immersion) and a small bidentate median claw.
Remarks
Copidognathus tabellio was previously reported from Antalya (Finike) in fine sand at a depth of 6 m, based on adult specimens (Durucan 2019). In this study, the protonymph stage of the species is reported and illustrated for the first time from Antalya, Türkiye.
description: Published as part of Durucan, Furkan, 2024, Three new records and some juveniles of the genus Copidognathus (Acari, Halacaridae) from Türkiye, pp. 771-796 in Persian Journal of Acarology 13 on pages 779-780, DOI: 10.22073/pja.v13i4.85812, http://zenodo.org/record/14668778