Rhynchaturus projectus Cook, 1988

Smit, Harry, 2021, New records of water mites from Chile (Acari: Hydrachnidia), with the description of three new species, Acarologia 61 (2), pp. 274-290 : 285

Rhynchaturus projectus Cook, 1988

( Figure 5 A­B)

New record. 0/3[one young]/0, tributary of Río Tinquilco, N of Lago Tinquilco, prov. Cautín, 39°09.432 ′ S 71°43.113 ′ W, 770 m a.s.l., 12 Dec. 2018.

Description. Female: Integument rugose, idiosoma dorsally 660 (705) long and 583 (624) wide, ventrally 770 (802) long. Dorsal shield with a pair of anteromedial platelets with the postocularia, a pair of posteromedial platelets each with a glandularium, a pair of large central platelets without glandularia and two pairs of lateral platelets, each with a glandularium ( Figure 5A ). Central platelets 235 (219) long. Dorsal projection of camerostome pointed, extending well beyond the tips of Cx­I. Venter as in male, apart from genital field. Gonopore 124 long, genital field 180 wide, with four pairs of acetabula ( Figure 5B ). Length of P1­5: ­, 44, 30, 65, 44; palp as in male. Length of I­leg­4­6: 146, 144, 120. Length of IV­leg­406: 114, 128, 86. Leg claws with large dorsal and ventral clawlets, legs without swimming setae.

Remarks. The female was unknown thus far, and is, therefore, described above.

Distribution. Previously known only from the type locality in Valdivia Province, Chile.

Figures

Figure 5 Rhynchaturus projectusCook, female. A – dorsum; B – genital field. Scale bars: A = 100 µm; B = 50 µm.