Picobia dinemellia, Glowska, Eliza & Skoracki, Maciej, 2011

Glowska, Eliza & Skoracki, Maciej, 2011, Two new quill mite species (Acari, Cheyletoidea, Syringophilidae) parasitizing Dinemellia dinemelli (Rüppell) (Passeriformes, Ploceidae), Zootaxa 3114, pp. 63-68: 64-68

publication ID

http://doi.org/ 10.5281/zenodo.207623

DOI

http://doi.org/10.5281/zenodo.3508407

persistent identifier

http://treatment.plazi.org/id/03F28790-FFCE-FFCE-FF12-F909FB33FBC9

treatment provided by

Plazi

scientific name

Picobia dinemellia
status

sp. nov.

Picobia dinemellia  sp. nov.

( Figs. 6–18View FIGURES 6 – 12View FIGURES 13 – 18)

NON-PHYSOGASTRIC FEMALE (holotype) ( Figs. 6–12View FIGURES 6 – 12). Total body length of holotype 785. Gnathosoma  . Hypostomal apex rounded with shoulders ( Fig. 8View FIGURES 6 – 12). Infracapitulum apunctate. Peritremes M-shaped, each medial branch with 5 chambers, each lateral branch with 9–10 chambers ( Fig. 10View FIGURES 6 – 12). Movable cheliceral digit 190 long. Stylophore apodemes 230 long. Idiosoma  . Propodonotal shield punctate and divided into three sclerites, 2 narrow lateral shields, bearing bases of setae ve, si and se and small oval median fragment. Setae vi and ve situated at same transverse level. All propodonotal setae slightly beaded ( Fig. 9View FIGURES 6 – 12). Length ratio of setae vi: si 1: 1.5. Setae c 1 located very slightly anterior to level of setae se. Setae d 1 situated equidistant to setae d 2 and e 2. Pygidial shield well developed and punctate. Length ratio of setae f 2:f 1 1.1 – 1. Setae f 1 2.7 times longer than h 1. Aggenital setae ag 1 situated anterior to level of setae ag 2 ( Fig. 11View FIGURES 6 – 12). Length ratio of setae ag 1: ag 2 2: 1. Setae ps 1 and ps 2 subequal in length. Setae g 1 short and situated on genital lobes. Setae 3 c 4.5 times longer than 3 b. Coxal fields I –IV well developed, apunctate. Legs. Antaxial and paraxial members of claw pairs III and IV subequal in size and shape. Setae tc” III –IV 1.9 times longer than tc’ III –IV. Lengths of setae: vi 115, ve more than 110, si 180, se 230, c 1 255, c 2 170, d 1 135, d 2 180, e 2 95, f 1 55, f 2 60, h 1 20, ps 1 30, ps 2 30, g 1 15, ag 1 120, ag 2 60, ag 3 more than 95, tc’ III –IV 40, tc” III –IV 75, 3b 20, 3c 90.

PHYSOGASTRIC FEMALE (3 paratypes). Body worm-shaped in outline, 1030–1135 long. Lengths of setae: vi 120–130, ve 120–135, si 175–200, se 215–250, c 1 250–280), c 2 155–195, d 1 130–165, d 2 180–195, e 2 105–120, f 1 55–60, f 2 50–70, h 1 30, ps 1 25, ps 2 35–40, g 1 15–20, ag 1 95–105, ag 2 50–55, ag 3 120–125, tc’ III –IV 40–55, tc” III –IV 70 –80, 3b 20 –25, 3c 90–95.

MALE (1 paratype) ( Figs. 13–18View FIGURES 13 – 18). Total body length 440. Gnathosoma  . Infracapitulum apunctate. Hypostomal apex rounded. Peritremes M-shaped, each medial branch with 4 chambers, each lateral branch with well visible 6 chambers ( Fig. 17View FIGURES 13 – 18). Idiosoma  . Propodonotal shield entire, lateral borders strongly sclerotized, punctate, bearing bases of setae vi, ve, si, se and c 1. Setae ve situated anterior to setae vi bases. Length ratio of setae vi: ve 1: 1.4. Setae c 1 located slightly anterior to level of setae se. Hysteronotal shield not fused to pygidial shield, punctate, bearing bases of setae d 1 and e 2. Setae d 2 5.3 times longer than e 2. Pygidial shield well developed, apunctate. Setae h 2 13 times longer than f 2. Alveolae of setae 3 a – 3 a not coalesced. Length ratio of setae ag 1: ag 2 4.3: 1. Setae 3 c 2.2 times longer than 3 b. Coxal fields I –IV well developed, apunctate. Lengths of setae: vi 55, ve 75, si 110, se 115, c 1 105, c 2 95, d 2 80, e 2 15, h 2 130, f 2 10, ag 1 65, ag 2 15, ps 1 5, ps 2 10, g 1, g 2 5, l’ RIII 20, l’ RIV 20, 3b 25, 3c 55.

Type material. Female holotype, 3 physogastric female paratypes and 1 male paratype from body feathers of a White-faced Buffalo Weaver Dinemellia  dinemelli ( Passeriformes  : Ploceidae  ).

Type deposition. All material deposited in the AMU.

Etymology. The specific epithet is taken from the generic name of the host.

Differential diagnosis. This new species is morphologically similar to P. indonesiana Skoracki & Glowska  described from the Asian Glossy Starling Aplonis panayensis (Scopoli)  ( Passeriformes  : Sturnidae  ) ( Skoracki & Glowska 2008). In females of both species, the hypostomal apex is rounded with shoulders, the lateral branch of the peritremes have similar number of chambers, the propodonotal shield is represented by three sclerites, setae vi and ve are situated at the same transverse level, the length ratio of setae f 2:f 1 is 1–1.2: 1, the pygidial shield is well sclerotized and punctate, and the opisthosomal lobes are present. These two species are distinguishable by the following characters: in females of P. dinemellia  sp. nov., the length ratio of setae ag 1:ag 2:ag 3 is 2: 1: 2.5, the lengths of setae d 1, h 1 and ag 2 are 130 –165, 30 and 50–55, respectively. In females of P. indonesiana  , the length ratio of ag 1:ag 2:ag 3 is 4.3: 1: 6.3, the lengths of setae d 1, h 1 and ag 2 are 65, 95 and 20, respectively.