A fossil Paratrombiinae mite (Actinotrichida: Trombidioidea) from the Rovno amber, Ukraine Author Konikiewicz, Marta Author Mąkol, Joanna text Zootaxa 2014 3847 4 583 589 journal article 10.11646/zootaxa.3847.4.8 3ad1f768-f5b1-49bb-bc65-4a783efb65bc 1175-5326 230950 1F82ABF9-75C4-42B6-9394-BDC1B89540AB Paratrombium rovniense sp. nov. Diagnosis. Larva. Medial and lateral coxala (1a and 1b) on coxa I pectinate. Description. Larva ( Figs. 1–5 ). Gnathosoma. [Hypostomala not visible]. Chelicera markedly elongated, terminated with long and straight cheliceral claw. Pedipalp setation formula, ƒP ρ = 0–N–0–NNN2–NNNζζζ (ω not detected), comprises one smooth seta on palp femur, three smooth setae on palp tibia and six setae on tarsus (including three ζ and among them—the sickle-shaped ζ). Palp tibial claw (odontus) bifid on entire length, with slightly diverging terminations. Normal setae on palp tarsus smooth, more slender and shorter than eupathidia (ζ). Idiosoma [dorsal view unintelligible due to the structure of the amber piece]. Scutum large, with rounded anterolateral margins; weaker sclerotisation of anterior part of scutum reflected by folds (not striation) of cuticle. [Intercoxalae III not visible]. Pygosomal setae (h1 and h2) placed on protruded bases and setulated along stem. Setae h1 distinctly longer than h2. Claparède’s organs between coxae I and II. ƒCx = BB–BB–B. Medial and lateral coxala I pectinate, each with 16–20 digitations. Legs (trochanter–tarsus). I: Tr (1n) – Fe (?4n) – Ge (4n, 2σ, 1κ) – Ti (5n, 2φ) – Ta (15n, 1ω,?2ζ); II: Tr (1n) – Fe (?3n) – Ge (3n, 1σ) – Ti (5n, 2φ) – Ta (13n, 1ω); III: Tr (1n) – Fe (4n) – Ge (3n, 1σ) – Ti (5n) – Ta (12n). Tarsi I–III terminated with paired claws and claw-like empodium; latter extended beyond claws. Normal setae on legs covered with short setulae. Microseta (κ) detected only on genu I (other microsetae as well as famuli on tarsi I and II not seen, presumably due to condition of specimen). Measurements given in Table 1 . The actual length and length ratio between the leg segments may be skewed due to the spatial position of the embedded specimen. Deutonymph and adult. Not known. TABLE 1 . Metric data on larva of Paratrombium rovniense sp. nov.

Character	Character value Character	Character value Character	Character value
L	262 Ti_I	58 LEG II	302
W	189 Ta_I	60 Cx_III	58
L/W	1.38 LEG I	239 Tr_III	50
AA	57 Cx_II	66 Fe_III	58
AM	27 Tr_II	43 Ge_III	41
Cx_I	77 Fe_II	49 Ti_III	70
Tr_I	35 Ge_II	35 Ta_III	86
Fe_I	36 Ti_II	50 LEG III	363
Ge_I	33 Ta_II	59 IP	904

FIGURE 1 . Paratrombium rovniense sp. nov. embedded in resin. Not to scale. FIGURE 2–4 . Paratrombium rovniense sp. nov. (larva): 2. Ventral aspect of the body; 3. Palp (trochanter – tarsus); 4. Coxa I with pectinate setae. FIGURE 5 . Paratrombium rovniense sp. nov. (larva): Legs I–III (trochanter – tarsus). Etymology. The specific epithet refers to the place of origin of the first parasitengone species described from the Rovno amber. Type material. The holotype (K-8284-A) contained in a lump of Ukrainian amber, originating from the “Pugach” mine in Klesov, is deposited in the collection of the Schmalhausen Institute of Zoology NAS, Kiev, Ukraine .