Harpyrhynchoides tracheatus ( Fritsch, 1954 )

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 : 36-38

Harpyrhynchoides tracheatus ( Fritsch, 1954)

( Figs. 26–29 )

Harpyrhynchus tracheatus Fritsch, 1954: 187 , fig. 6 (type lost).

Harpirhynchus (Harpyrhynchoides) tracheatus, Fain 1994: 120 .

Harpyrhynchoides tracheatus, Bochkov & OConnor 2013: 505; Bochkov & Galloway 2013: 412.

Redescription. FEMALE (10 specimens from Buteo jamaicensis , Figs. 26–28 ). Body, including gnathosoma, 330–350 long and 260–290 wide. Gnathosoma about 85 long and 105 wide. Palp 45–50 long and 42–46 wide, without lateral notches. Palpalae different in shape, thickened ( Fig. 26 E): dF 25–27 long, about 1.5 times longer than dG and l”G 15–18 long; dG about 2 times wide than other palpalae, with 5–6 pectination. Setae vF about 55 long, smooth. Subcapitulum ventrally without membranous projections. Peritrematal branch about 50 long. Idiosoma 250–265 long. Smooth cuticle between peritrematal branches and transverse striations apunctate. All dorsal setae slightly serrate. Dorsal shield unornamented, 160–170 long and 155–165 wide, with almost straight anterior and posterior margins. Idiosoma ventrally without scales or verrucosities and not striated median area extending from level of setal bases 1c to pocket-like vulvar structure. Setae 1a situated slightly anterior to level of setal bases 1c. Setae 3a situated at level of coxal fields III. Distance between setal bases 3a more 3 times longer than between setal bases 1a. Ventral setae setae h1 present. Distance h2–h2 3–4 times longer than h1–h1. Coxal fields I and II smooth. Vulvar pocket-like structure without long lateral longitudinal folds. Vulvar apodemes well developed. Lengths of setae: vi, ve, si, se, and c2 100–115, h1 and h2 about 8. Solenidia ω 1 I and ω1 II 12–13 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 without setae; apical segment with 3 setae.

MALE (5 specimens from Buteo jamaicensis , Fig. 29 ). Body, including gnathosoma, 250–265 long and 205– 215 wide. Gnathosoma about 65 long and 85 wide. Palp about 42 long and 33 wide, without notches. Palpalae thickened ( Fig. 29 C): dG about 12 long, twice as wide as dF about 19 long and l”G about 11 long. Setae vF about 45 long, smooth. Subcapitulum ventrally as in female. Idiosoma about 200 long. Smooth cuticle between peritrematal branches and transverse striations apunctate. Dorsal shield about 165 long and 150 wide; with slightly concave anterior margin and widely convex posterior margin. Aedeagus about 60 long, slightly curved, situated anterior to genital opening. Genital opening situated close to posterior margin of dorsal shield. Genital arch about 15 long. Genital setae 5–6 long; setae g2 situated almost at same level with g3. Distance g1–g1 30, g2–g2 12, and g3–g3 28. Setae vi, ve, si, se, and c2 85–100 long—all slightly serrate. Idiosoma ventrally without scales or verrucosities. Median area extending from level of setal bases 1c to anterior margin of coxal fields IV not striated. Coxal fields I and II smooth. Leg I and II setation as in female. Solenidia ω 1 I twice thicker than and subequal in length to ω 1 II, 11–12 long, straight and conical, with rounded apex. Apical segment of leg III with 5 setae; preapical segment with 1 seta. Leg IV with 1 segment bearing 3 setae.

Additional material. Three females ( IRSNB) from Buteo buteo Linnaeus, 1758 ( Accipitriformes : Accipitridae ), GERMANY: Erlangen, no other data; 4 females ( IRSNB) from same host, LUXEMBOURG, April 1965, coll. A. Fain; 6 females ( BMOC 85-1230-001) from Buteo lineatus (Gmelin, 1788) ( UMMZ 224655) [skin of body], USA: Michigan, Washtenaw Co., Sylvan Township, Crooked Lake, 42°19’56”N, 84°06’58” W, November-December 1983, coll. G. H. Sexton II; 5 females deposited in UMMZ, 1 in ZISP; 16 females and 4 males ( AVB 13-0402-001) from Buteo jamaicensis (Gmelin, 1788) ( RTHA /1724/ CEN /03), Manitoba, Shoal Lake, 27 April 2004, coll. T.D. Galloway (field number SM-1299); 1 male and 1 female deposited in JBWM, other specimens in ZISP.

Hosts and distribution. Buteo buteo (Linnaeus) [type host] ( Accipitriformes : Accipitridae ) from Germany ( Fritsch 1954) and Luxembourg ( Fain 1994), Buteo lineatus (Gmelin) from USA (Michigan) (Bochkov & OConnor 2013) and Buteo jamaicensis (Gmelin) from Canada (Manitoba) ( Bochkov & Galloway 2013).

Remark. Females from Buteo jamaicensis and B. lineatus were compared with females from the type host ( B. buteo ) and are conspecific.

Figures

FIGURE 26. Harpyrhynchoides tracheatus (Fritsch, 1954), female from Buteo jamaicensis (A – E): A—dorsal view; Bventral view; C—solenidion ω 1 I; D—solenidion ω 1 II, E—palpalae. F—palpalae of female from Buteo lineatus in dorsal view; G—same from Buteo buteo. Scale bars: A, B = 100 Μm; C – G = 50 Μm.

FIGURE 27. Harpyrhynchoides tracheatus (Fritsch, 1954), SEM photos of female from Buteo jamaicensis (A – D): A—dorsal view; B—ventral view; C—gnathosoma in ventral view; D—opisthosoma in ventral view.

FIGURE 28. Harpyrhynchoides tracheatus (Fritsch, 1954), SEM photos of female details from Buteo jamaicensis (A – D): Apalpalae dG; B—hypostomal lobes; C—Leg I in dorsal view; D—tarsus I in lateral view.

FIGURE 29. Harpyrhynchoides tracheatus (Fritsch, 1954), male from Buteo jamaicensis: A—dorsal view; B—ventral view; C—palpalae; D—genital opening; E—solenidion ω 1 I; F—solenidion ω 1 II. Scale bars: A, B = 100 Μm; C – F = 50 Μm.