Harpyrhynchoides coccyzus Bochkov

Bochkov, Andre V, Oconnor, Barry M. & Klompen, Hans, 2015, A review of the mite subfamily Harpirhynchinae (Acariformes: Harpirhynchidae) — parasites of New World birds (Aves: Neognathae), Zootaxa 4023 (1), pp. 1-130 : 44-46

Harpyrhynchoides coccyzus Bochkov , OConnor and Klompen sp. nov.

( Figs. 36–38 )

Description. FEMALE (holotype, 2 paratypes, Figs. 36 , 38 A–C). Body, including gnathosoma, 350 long (320– 350) and 275 wide (260–275). Gnathosoma about 75 long and 90 wide. Palp 42 long (42–50) and 31 wide (30–37), without lateral notches. Palpalae thickened ( Fig. 38 A): dF 20–23 long with 5–6 pectinations, dG and l”G subequal in length, 12–13 long with 7–8 pectinations and 10–12 long with 5–6 pectinations, respectively. Setae vF about 45 long, smooth. Subcapitulum ventrally without membranous projections. Peritrematal branch about 37 long. Idiosoma 250–260 long. Smooth cuticle between peritrematal branches and transverse striations with numerous microscales. All dorsal setae slightly serrate. Dorsal shield 150 long (130–160) and 190 wide (180–190). This shield devoid of ornamentation, with widely convex posterior margin. Idiosoma ventrally without scales or verrucosities, except few median verrucosities posterior to level of setal bases h2, without transverse striations. Setae 1a situated anterior to level of setal bases 1c. Setae 3a situated slightly anterior to level of coxal fields III. Distance between setal bases 3a about 3.5 times longer than between setal bases 1a. Coxal fields I and II smooth, each with distinct widely rounded membranous transverse fold in posterior part. Vulvar pocket-like structure without long lateral longitudinal folds. Vulvar apodemes well developed. Ventral setae h1 present. Lengths of setae: vi 83 (80–85), ve 72 (72–80), si 67 (67–73), se 69 (69–75), c2 100 (100–110), h1 and h 2 15–16. Solenidia ω 1 I and ω 1 II 9–10 long, narrow straight and conical, with rounded apex. Empodium of tarsi I and II not elongated, only slightly longer or subequal to respective tarsus. Genua I and II with 3 setae (d, l’, v’), femora I and II with 2 setae (d and v), trochanters I and II with 1 seta (v). Apical segment of leg III with 5 setae; preapical segment with 1 seta. Leg IV with 2 segments; preapical segment with 1 seta; apical segment with 3 setae.

MALE (1 paratype, Figs. 37 , 38 D–G). Body, including gnathosoma, 210 long and 185 wide. Gnathosoma about 58 long and 65 wide. Palp about 37 long and 25 wide, without notches. Palpalae with few barbs ( Fig. 38 D): dF and dG about 11 long, l”G 6 long. Setae vF 28 long, smooth. Subcapitulum ventrally as in female. Idiosoma 160 long. Smooth cuticle between peritrematal branches and transverse striations with numerous microscales. Dorsal shield 115 long and 135 wide. Aedeagus 72 long, almost straight, situated anterior to genital opening.

Genital opening situated in posterior third of dorsal shield. Genital arch 25 long. Genital setae 2–3 long; setae g2 situated almost at level of g1, distinctly posterior to g3. Distance g1–g1 25, g2–g2 18, and g3–g3 12. Setae vi broken, ve, si, se, and c2 55–60 long—all slightly serrate. Idiosoma ventrally without scales or verrucosities and transverse striations. Coxal fields I and II smooth, each with distinct widely rounded membranous transverse fold in posterior part. Leg I and II setation as in female. Solenidion ω 1 I 8 long, strongly thickened, about 6 wide in median part; solenidion ω 1 II 10 long, straight and conical, with rounded apex. Apical segment of leg III with 5 setae; preapical segment with 1 seta. Leg IV with 3 setae.

Type material. Holotype female ( UMMZ BMOC 06-0518-001, #1), 2 female and 1 male paratypes ( UMMZ BMOC 06-0518-001, #2–4) from Coccyzus americanus (Linnaeus) ( Cuculiformes : Cuculidae ) ( UMMZ 240618) [on head], USA: Michigan, Washtenaw Co., Ann Arbor, UM Campus, 42.2793409°N, 83.7386084°W (from catalog data), 18 May 2006, coll. J. Hinshaw.

Type deposition. Holotype and male paratype in UMMZ, 1 female paratype in ZISP, 1 in OSAL.

Additional material. 11 females and 11 males ( BMOC 09-0628-002, #1–22) from Coccyzus erythropthalmus (Wilson) ( UMMZ 241865) [around wing bases], USA: Michigan, Washtenaw Co., Ann Arbor, UM Campus, 42.2793409°N, 83.7386084°W, 28 June 2009, coll. B.M. OConnor (falcon kill).

Etymology. The specific epithet is derived from the generic name of the host and is a noun in apposition.

Hosts and distribution. Coccyzus americanus and C. erythropthalmus ( Cuculiformes : Cuculidae ) from USA (Michigan) (present paper).

Differential diagnosis. Among species of complex A the new species is closest to Harpyrhynchoides clamator Bochkov, 2014 . In females of both these species, genua I and II have three setae each, femora I and II have two setae each, proximal segments of legs III and IV have a single seta each, the distal segment of leg IV has three setae, the idiosomal venter is not striated, and coxal field I bears a transverse membranous fold, and setae h1 and h2 are subequal. In addition, in males of both these species, solenidion ω 1 I is almost three times thicker than ω 1 II. These species differ from each other by the following character states. In both sexes of H. coccyzus sp. nov., the smooth cuticle between peritrematal branches and area of transverse striations is covered by numerous microscales (vs. smooth in H. clamator ), coxal field II bears a transverse membranous fold in the posterior part (vs. without fold); in females, the vulvar pocket-like structure is without distinct lateral longitudinal folds (vs. with distinctly developed longitudinal folds); in males, setae g2 are much closer to g1 than to g3 (vs. setae g2 are much closer to g3).

Figures

FIGURE 36. Harpyrhynchoides coccyzus sp. nov., female: A—dorsal view; B—ventral view.

FIGURE 37. Harpyrhynchoides coccyzus sp. nov., male: A—dorsal view; B—ventral view.

FIGURE 38. Harpyrhynchoides coccyzus sp. nov., details of female (A – C): A—palp in dorsal view; B—solenidion ω 1 I; Csolenidion ω 1 II. Male (D – G): D—palp in dorsal view; E—genital opening; F—solenidion ω 1 I; G—solenidion ω 1 II.