Pseudoeupodes porosus Khaustov

Khaustov, Alexander A., 2014, A new genus and species in the mite family Eupodidae (Acari, Eupodoidea) from Crimea, ZooKeys 422, pp. 11-22 : 13-16

Taxon classification Animalia Trombidiformes Eupodidae

Pseudoeupodes porosus Khaustov sp. n. Figs 1-15

Description.

Female. Length of idiosoma 288 (280-300), width 163 (157-180).

Idiosomal dorsum (Figs 1, 11-13). Idiosoma with striae bearing microtubercles (Figs 11-13). All dorsal setae densely pilose, setae v1 slightly widening apically. Prodorsum with pair of longitudinal lines between the bases of setae sc2 and anterior margin of prodorsum near setae v1. Setae sc1 with large barbs, a weak reticulate subcuticular ornamentation visible posteriorly to bases of sc1 (Fig. 11). Lyrifissures ia situated posterolaterally to bases of setae c1; im situated posterolaterally to bases of setae d1; ip situated between setae e1 and f1. Length of dorsal setae: v1 9 (98-10), v2 16 (15-19), sc1 50 (47-55), sc2 15 (14-17), c1 13 (12-16), c2 21 (19-25), d1 16 (14-19), e1 15 (14-18), f1 40 (37-45), f2 25 (24-28), h1 23 (21-26), h2 17 (15-21). Setae f1 longest of dorsal hysterosomal setae but not of trichobothrial form.

Idiosomal venter (Figs 2, 3, 14-15). All ventral setae densely pilose. Setae 1a, 3a, 4a (10-13) slightly widened distally; setae 1c the shortest on coxal fields. Genital setae arranged in one longitudinal row, anterior five pairs (g1-g5) situated on non-striated genital covers bearing only microtubercles, posterior pair (g6) situated outside genital covers on striated cuticle (Figs 3, 15). Anterior two pairs of genital setae distinctly longer (10-11) than other genitals (6-7). Aggenital setae increasing in length from ag5 (7) to ag1 (10-11). Eugenital setae situated on protuberances and arranged in three groups: two anterior (eu1, eu2), one medial (eu3) and three posterior (eu4-eu6) (Fig. 3). Pseudanal setae ps1 15 (14-18) distinctly longer than ps3 11 (10-14). Lyrifissure ih located anterolaterally to bases of setae ps3.

Gnathosoma (Figs 4-6). Integument papillate. Subcapitulum (Fig. 4) roughly triangular, with two pairs of minute smooth adoral setae (or1, or2), located subapically; subcapitular setae sbc2 densely pilose, sbc1 smooth, located laterally at level of proximal margin of palp trochanters, about one-third as long as sbc2, sbc2 inserted ventrally one third to one quarter of distance between sbc1 and tip of subcapitulum, labrum acuminate. Chelicera (Fig. 5) 60 in length. Palps (Fig. 6) with supracoxal seta ep minute, brush-like, femorogenual and tibial setae densely pilose, tarsal setae acm and sl" smooth, other tarsal setae pilose, p" bifurcate distally.

Legs (Figs 7-10). Relative lengths of legs: I>IV>III>II. All leg setae densely pilose. Leg I (Fig. 7): Supracoxal setae ep of the same shape and length as palpal supracoxal setae ep. Femur incompletely divided into basi- and telofemur. Setal formula: Tr - 1, Fe - 6+5, Ge - 7(1σ), Ti - 7(2φ), Ta - 18 (2ω, 1ε). Famulus ε (stellate seta) located in a shallow depression clearly posterolaterally to basal part of rhagidial solenidion ω 1 and anterior to seta ft". Rhagidial solenidion φ 1 obliquely oriented toward anterior lateral margin of leg, located anterodorsally and situated in shallow depression; solenidion φ 2 located posterodorsally in the space between setae l’ 1 and l"1; solenidion σ located anterodorsally, about 1.5 times as long as φ 2. All setae on tarsus, d and l’ on tibiae are eupathidia (as applied for Eupodoidea by Lindquist and Zacharda 1987). Leg II (Fig. 8): Femur incompletely divided into basi- and telofemur. Setal formula: Tr - 1, Fe - 5+5, Ge - 4(1σ), Ti - 5(2φ), Ta - 12 (3ω, 1ε). Famulus ε spine-like, located just posterolaterally to base of rhagidial solenidion ω 1. Rhagidial solenidion φ 1 obliquely oriented toward anterior lateral margin of leg, located anterodorsally and situated in shallow depression; solenidion φ 2 located posterodorsally; solenidion σ located anterodorsally, subequal to φ 2. Tarsal setae (u), (p), (it) and tc’ are eupathidia. Leg III (Fig. 9): Setal formula: Tr - 1, Fe - 4+4, Ge - 4, Ti - 5(1φ), Ta - 10; femur completely divided into basi- and telofemur; solenidion φ located posterodorsally; all setae on tarsus and d on tibia are eupathidia. Leg IV (Fig. 10): Setal formula: Tr - 1, Fe - 2+3, Ge - 4, Ti - 5, Ta - 11; femur completely divided into basi- and telofemur; tarsal setae (u), p’, ft’ and d on tibia are eupathidia.

Type material.

Holotype female, slide № AK210494, CRIMEA: Yalta mountain-forest Nature Reserve, moss on soil, 21 April 1994, coll. A.A. Khaustov. Paratypes: five females, same data as holotype; seven female paratypes, CRIMEA: Yalta, moss on soil, 5 March 1994, coll. A.A. Khaustov.

Etymology.

The name of the new species refers to the presence of unusual pore-like structures in the soft cuticle between the coxisternal plates and the trochanters of all legs.