Tartarothyas beedelup, Orginal, 2021

Orginal, Harry Smit, 2021, The water mites of Western Australia (Acari: Hydrachnidia), with the description of 13 new species, Acarologia 61 (4), pp. 928-966 : 931

Tartarothyas beedelup n. sp.

Zoobank: D2921B33-2414-4342-88F6-845839435ED8

( Figures 2 A-D)

Material examined — Holotype female, Beedelup Brook south, Western Australia, Australia, 34°26″ S 115°47′ E, Jul. 1993, leg. K. Trayner (slide T147381 , WAM) . Paratype:

one female, Collier Creek northern tributary, on Cemetery Rd., site 20, Walpole-Normalup

NP, Western Australia, Australia, 34°58′30″ S 116°45′12″ E, 11 Sept. 1996, leg. A. Pinder ( T 147379, WAM).

Diagnosis — Acetabula elongated, Cx-IV small, first leg segments stocky.

Description — The holotype is fixed in ethanol, and therefore some structures, like the dorsal glandularia and the integument are difficult or none at all to see. Idiosoma dorsally 948 (608) long and 535 (478) wide, ventrally 931 (616) long. Postocularia anterior to dgl-3 (?). Cx-IV small, without a medial margin ( Figure 2A). Genital field 190 (118) long, the three pairs of acetabula elongated, especially anterior pair. Genital flaps with a few short setae. Length of P1-5 (measurements of second palp in brackets): - (34), 63, 46, 84, - (54). P2 medially with two setae near ventral margin and a large, pectinate seta near dorsal margin ( Figure 2B). Length of I-leg-4-6: 92, 100, 102; I-leg-6 dorsally with a group of setae ( Figure 2C). Length of IV-leg-4-6: 136, 140, 112 ( Figure 2D). Legs without swimming setae.

Male: Unknown.

Etymology — Named after the type locality, the Beedelup Brook. The name is a noun in apposition.

Remarks — The new species differs from T. boultoni Harvey, 1987 in more slender acetabula, a smaller Cx-IV and a less slender P4, I-leg-6 and IV-leg-6 (e.g., compare Figure

6 of Harvey (1987) with Figure 2C). Tartarothyas curtipalpis n. sp. has a much stockier palp, especially P4. One of the paratype females from Collier Creek is much smaller than the holotype, but I don′t see any morphological differences.