Allopygmephorus punctatus, Khaustov, Alexander A. & Sazhnev, Alexey S., 2016

Khaustov, Alexander A. & Sazhnev, Alexey S., 2016, Mites of the families Neopygmephoridae and Scutacaridae associated with variegated mud-loving beetles (Coleoptera: Heteroceridae) from Russia and Kazakhstan, Zootaxa 4175 (3), pp. 261-273 : 269-270

Allopygmephorus punctatus sp. nov.

( Figs 7–9 )

Description. FEMALE ( Figs 7–9 ). Body well sclerotized. Length of idiosoma 270 (270–280), width 170 (170– 190). Gnathosoma similar to that of P. heteroceri sp. nov. Idiosomal dorsum ( Fig. 7 A). Only posterior part of prodorsum covered by anterior margin of tergite C. All dorsal plates with numerous small dimples (punctate). Stigmata round, with transverse slit-like opening. Trichobothria clavate and weakly barbed. Setae sc 2 smooth, needle-like; other dorsal setae sparsely barbed; setae e and h 2 blunt-ended, other dorsal setae pointed. Posterior margin of tergite H rounded. Cupules ia on tergite D and ih on tergite H small, round. Lengths of dorsal setae: sc 2 19 (18–22), c 1 42 (42–45), c 2 51 (50–54), d 42 (40–44), e 26 (26–27), f 49 (48–52), h 1 43 (42–49), h 2 31 (30–33). Distances between setae: sc 2 –sc 2 54 (53–56), c 1– c 1 52 (52–54), c 1– c 2 39 (38–44), d–d 37 (36–39), e–f 17 (16–17), f– f 74 (72–76), h 1– h 1 33 (32–35), h 1– h 2 23 (23–25). Idiosomal venter ( Fig. 7 B). All ventral plates with numerous small dimples. Setae 1 b thichened, lanceolate and barbed. Setae ps 2 very small, vestigial; other ventral setae sparsely barbed, pointed. Setae ps 1 and ps 3 weakly thickened in basal part. Apodemes as in A. spinisetus sp. nov. Posterior margin of posterior sternal plate weakly concave in middle part. Posterior margin of aggenital plate rounded. Ags small, triangular, pgs large, triangular, with indistinct anterior margin. Posterior sternal plate with distinct scale-like structure posteriorly and laterally to bases of legs IV. Lengths of ventral setae: 1 a 34 (29–35), 1 b 26 (25–27), 2 a 30 (30–33), 2 b 30 (28–31), 3 a 35 (33–36), 3 b 32 (30–33), 3 c 26 (26–29), 4 a 43(40–45), 4 b 49 (47– 50), 4 c 40 (39–42), ps 1 26 (25–27), ps 3 24 (24–27). Legs ( Figs 8 , 9 ). Leg setation as in P. heteroceri sp. nov.

Leg I ( Fig. 8 A). Tip of tarsal claw thin, pointed. Seta k smooth, pointed. Seta l’ of femur smooth, blunt-ended; v” on femur I very short, smooth, spiniform; v’ on trochanter short, smooth, blunt-ended; other leg setae (except eupathidia) pointed and sparsely barbed. Lengths of solenidia ω 1 9 (9–10)> ω 2 4 (4–5) <φ 1 7 (6–7) = φ 2 7 (6–7); ω 1 finger-shaped, ω 2 and φ 2 baculiform, φ 1 weakly clavate. Leg II ( Fig. 8 B). Solenidion ω 13 (13–15), finger-shaped, solenidion φ 5 (5–6) weakly clavate. Seta tc” of tarsus smooth, pointed; u’ weakly blunt-ended, barbed; other leg setae pointed and sparsely barbed. Leg III ( Fig. 9 A) Solenidion φ 3 (3–4) weakly clavate. Seta tc” of tarsus smooth, pointed; u’ weakly blunt-ended, barbed; other leg setae pointed and sparsely barbed. Leg IV ( Fig. 9 B). Solenidion φ 2 (2) very small. All leg setae barbed; seta v” of tibia blunt-ended, other leg setae pointed.

MALE and LARVA unknown.

Type material. Female holotype, slide No. 270715, RUSSIA: Dagestan, Biryuzyak station , on Heterocerus fenestratus , 27 July 2015, coll. V.V. Ilyina ; paratypes: 2 females, same data ; 2 females, KAZAKHSTAN, Aktyubinsk Province, Bezhetsk region, vicinity of settlement Emba , N 48°38'38.7”, E 057°54'58”, on Heterocerus flexuosus , 25 April 2012, coll. A.V. Ivanov .

Etymology. The name of the new species is derived from Latin word punct meaning dot referring to punctate dorsal and ventral plates.

Differential diagnosis. The new species is most similar to A. persicus Khaustov and Hajiqanbar, 2006 , in having pointed setae h 1. It differs from A. persicus by its blunt-ended setae h 2 (pointed in A. persicus ); setae 1 b thickened and lanceolate (not thickened in A. persicus ), and distinctly punctate dorsal and ventral plates (smooth in A. persicus ).

Figures

FIGURE 7. Allopygmephorus punctatus sp. nov., female: A—idiosomal dorsum, B—idiosomal venter.

FIGURE 8. Allopygmephorus punctatus sp. nov., female: A—right leg I in dorsal view, B—right leg II in dorsal view.

FIGURE 9. Allopygmephorus punctatus sp. nov., female: A—right leg III in dorsal view, – B—right leg IV in dorsal view.