Picobia heeri Haller, 1878

Skoracki, Maciej, 2011, Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840, Zootaxa 2840 (1), pp. 1-414 : 329-332

Picobia heeri Haller, 1878

( Figs. 241–244 )

Picobia heeri Haller, 1878: 93 .

Type host: Picus canus Gmelin ( Piciformes : Picidae ). Type locality: Switzerland.

NON-PHYSOGASTRIC FEMALE (5 specimens from type host species from Poland). Total body length 765–770. Gnathosoma . Hypostomal apex rounded, with shoulders. Infracapitulum apunctate. Movable cheliceral digit edentate in posterior part. Peritremes V-shaped, each medial branch with 5–7 chambers, each lateral branch with 9–11. Stylophore 270–285 long. Podomers of palps densely punctate. Idiosoma . Propodonotal shield divided into 2 narrow lateral and single median shield, all slerites punctate. Length ratio of setae vi:ve:si is 1.3–1.6:1:1.3–1.6. Bases of setae vi situated slightly posterior to level of setae ve. Setae vi, ve and si lightly beaded. Setae se and c1 situated at same transverse level or setae c1 set slightly anterior to level of setae se. Pygidial shield well developed, punctate. Setae f2 1.4–1.6 times longer than f1. Setae h1 3–3.2 times longer than f1. Alveoles of setae 3a–3a not coalesced. Aggenital setae ag1 situated anterior to level of setae ag2. Length ratio of setae ag1:ag2:ag3 1.8– 2.2:1:2.4–3. Genital plate present, apunctate. Setae ps2 1.4–1.6 times longer than ps1. Pair of short and thick genital setae situated on genital lobes. All coxal fields well sclerotized, apunctate. Setae 3c about 3 times longer than 3b. Legs. Antaxial and paraxial members of claws subequal in size. Setae tc’ and tc” subequal in length. Lengths of setae: vi 220–240, ve 145–170, si 225–260, se 300–315, c1 290–320, c2 295–320, d1 230–260, d2 280–320, e2 230–250, f1 55–65, f2 80–105, h1 180–200, h2 545–580, ag1 130–150, ag2 60–80, ag3 165–195, 1a 80–95, 3a 80– 120, g1 25–35, ps1 30–40, ps2 55, tc’III–IV 85–90, tc”III–IV 90–95, l’RIII 40–45, l’RIV 30–40, 3b 40–55, 3c 125– 160.

PHYSOGASTRIC FEMALE (7 specimens from type host species from Poland). Body , worm-shaped outline, 1500–1905 long .

MALE (2 specimens from type host species from Poland). Total body length 630–645. Gnathosoma . Hypostomal apex rounded to flat. Infracapitulum apunctate. Stylophore 130–155 long. Peritremes V-shaped, each medial branch with 5 chambers, each lateral branch with 9–10 chambers. Idiosoma . Propodonotal shield divided into 2 narrow and punctate lateral shields and 1 oval shield situated in middle of propodonotum. Length ratio of setae vi:ve:si are 1.2:1:1.5. Setae vi, ve, and si beaded. Bases of setae ve situated slightly anterior to level of vi. Setae c1 situated anterior to level of setae se. Hysteronotal shield well developed, punctate, bearing bases of setae d1 and e2. Setae d2 about 7 times longer than d1. Setae d1 situated closer to e2 than to d2. Pygidial shield apunctate. Setae h2 about 15 times longer than f2. Alveoles of setae 3a–3a not coalesced. Aggenital plate entire, punctate, bearing bases of setae ag1. Setae ag1 3.5 times longer than ag2. All coxal fields well sclerotized, III–IV densely punctate. Setae 3c about 3 times longer than 3b. Legs. Setae tc”III–IV slightly (1.1–1.2 times) longer than tc’III–IV. Lengths of setae: vi 150–175, ve 120–145, si 180–220, se 205–215, c1 205–230, c2 205–230, d1 25–30, d2 210–225, e2 25, f2 15–20, h2 285–315, ag1 80–90, ag2 25, tc’III–IV 50–70, tc”III–IV 75–80, l’RIII 30–40, l’RIV 20–25, 3b 35, 3c 110, 1a 45–60, 3a 50.

Type material (not examined). All type material of this species is lost ( Kethley 1970).

Non-type material examined. Picus canus Gmelin ( Piciformes : Picidae ): 5 females (non-physogastric form), 10 females (physogastric form), 2 males ( AMU –SYR.120) (bod.); POLAND, Gornoslaskie, Schlesien, 1893, coll. unknown. Material deposited in the AMU. Picus viridis Linnaeus (Picidae) : 4 females (non-physogastric form), 11 females (physogastric form), 6 males, 14 nymphs ( AMU –SYR.227) (bod.); POLAND, Wielkopolska, Katy near Murowana Goslina , 14 May 2008, coll. M. Skoracki. Material deposited in the AMU and ZISP .

Host range and habitat. Oligoxenous species inhabiting body quills of picid species ( Picidae ): Picus canus and P. viridis .

Distribution. Switzerland and Poland.

Figures

FIGURE 241. Picobia heeri Haller, female (non-physogastric form). A, dorsal view; B, ventral view.

FIGURE 242. Picobia heeri Haller, female (physogastric form). A, dorsal view; B, ventral view.

FIGURE 243. Picobia heeri Haller, male. A, dorsal view; B, ventral view.

FIGURE 244. Picobia heeri Haller, female (A–F). A, gnathosoma in ventral view; B, peritremes; C, solenidia of leg I; D, coxal fields of leg I and II; E, propodonotal setae ve; F, opisthosoma in ventral view. Male (G–J). G, hypostomal apex; H, peritremes; I, coxal fields of leg I and II; J, genito-anal region. Scale bars: D, F, I = 50 µm; A–C, E, G, H, J = 20 µm.