Perhapyrhynchus elseyornis, Klompen, Hans, 2014

Klompen, Hans, 2014, New Harpirhynchinae Dubinin (Acariformes: Harpirhynchidae) — intracutaneous and feather-base parasites of birds, Zootaxa 3860 (4), pp. 301-324 : 314-315

Perhapyrhynchus elseyornis sp. nov.

( Figs. 12–14 )

Description. FEMALE (holotype, Figs. 12 and 13 ). Body, including gnathosoma, 285 long (235–285 in 10 paratypes) and 235 wide (200–235). Gnathosoma about 75 long and 85 wide. Palps about 45 long and 35 wide. Palpalae dF 23 long (23–25), dG 15 long (15–20), and l”G 10 long (10–12), thickened and pectinate. Setae vF about 15 long, smooth. Peritrematal branch about 40 long. Idiosoma 225 long (180–225). Dorsal shield about 125 long (115–125) and 160 wide (135–160), distinctly punctate. Anterior margin of dorsal shield widely concave, posterior margin widely convex. Ventral surface of idiosoma without striations. Setae vi and si 18–23 long, se 30–35 long, all smooth; setae h1 absent, h2 smooth, 8–12 long. Legs I and II with 4 articulated segments each. Setation of legs I and II (number of solenidia in parentheses): tarsi 8(1)–7(1), tibiae 5–5, femora-genua 3–3, trochanters 1–0. Solenidia as in Fig. 13 B and D. Legs III with 2 articulated segments, basal segment without setae, apical segment with 5 setae.

MALE (10 paratypes, Fig. 14 ). Body, including gnathosoma, 225–240 long and 200–210 wide. Gnathosoma 60–65 long and 75–80 wide. Palps 35–40 long. Palpalae dF 20–22 long, dG 15–16 long, and l”G 10–11 long, thickened and pectinate. Setae vF about 10 long, smooth. Peritrematal branch about 30 long. Idiosoma 155–175 long. Dorsal shield about 120–125 long and 125–130 wide, without distinct punctation. Anterior margin of dorsal shield almost straight, posterior margin widely convex. Genital opening situated at level of setal bases se. Aedeagus 60–75 long. Distance g1–g1 25 about long, g2–g2 about 9 long. Ventral surface of idiosoma without striations. Setae vi and si about 10 long, se about 30 long, all smooth. Legs I and II with 4 articulated segments each. Setation of legs I and II as in female. Legs III with 2 articulated segments, basal segment without setae, apical segment with 5 setae.

Type material examined. Holotype female ( OSAL 0083216), 10 female and 10 male paratypes ( OSAL 0 0 83211, 0083213-0083219, 0 0 83221, 0083696) from Elseyornis melanops (Vieillot) ( Charadriiformes : Charadriidae ) [in skin], AUSTRALIA: Western Australia, Brooking Springs, 18.12°S, 125.58°E (GeoNet), 29 September 1976, coll. F.S. Lukoschus.

Holotype deposition. OSAL.

Etymology. The species name derives from the generic name of the host and is a noun in apposition.

Differential diagnosis. This new species is close to P. recurvirostra Fain, 1976 . In females of these two species the palpalae are subequal in length, legs I and II have four articulated segments, trochanters II are without setae, setae h1 are absent, and genua-femora I-II have three setae each. These species differ from each other by the following features. In both sexes of P. elseyornis sp. nov., trochanters I bear one seta; in females, the body is 235–285 long, the dorsal shield is distinctly punctated, setae h2 are 8–12 long; in males, the body is 225–240 long, the genital opening is situated at the level of setal bases se. In both sexes of P. recurvirostra , trochanters I are without setae; in females the body is about 390 long, the dorsal shield is without ornamentation, and setae h2 are about 35 long; in males, the body is about 300 long, and the genital opening is situated posterior to the level of setal bases se.

Figures

FIGURE 12. Perharpyrhynchus elseyornis sp. nov., female. A—dorsal view; B—ventral view.

FIGURE 13. Perharpyrhynchus elseyornis sp. nov., female. A—palp in dorsal view; B—leg I in dorsal view; C—tarsus I in ventral view; D—leg II in dorsal view; E—tarsus II in ventral view; F—leg III in ventral view.

FIGURE 14. Perharpyrhynchus elseyornis sp. nov., male. A—dorsal view; B—ventral view; C—palpalae in dorsal view. Scale bars: A, B = 100 µm; C = 50 µm.