Ptiloxenus major ( Mégnin and Trouessart, 1884 )
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https://doi.org/ 10.12651/JSR.2017.6 |
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https://treatment.plazi.org/id/0387312B-E51B-FFE1-FF60-FDC8FD74F8E3 |
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Felipe |
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Ptiloxenus major ( Mégnin and Trouessart, 1884 ) |
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2. Ptiloxenus major ( Mégnin and Trouessart, 1884)
ĿḑỌHǖfflũḍϢΞή (ljḓ) ( Figs. 4, 5)
Synonyms. Pterolichus colymbi var. maior Mégnin and Trouessart, 1884: 429430 .
Ptiloxenus major : Bedford, 1936: 71; Dubinin, 1951, p. 147 -148, fig. 15; 1956: p. 527-530, figs. 258-259;
Gaud and Atyeo, 1996, Part II, p. 419, fig. 430; Davert and Ehrnsberger, 1998, p. 151; Krantz and Walter, 2009, p. 638, fig. 16.37.
Material examined. Korea: 3♂♂, 3$$, Gwongokdong, Asansi , Chungcheongnamdo, 36°47 ʹ 22.36 ʺ N, 127°0 ʹ 33.64 ʺ E, July 5, 2013, collected using vacuum machine from flight feathers on the wings of great crest ed grebe, Podiceps cristatus by Han Y.D GoogleMaps .
Diagnosis. Male: Length 400415 of idiosoma from anterior end to bases of setae h3, width 220230 at level of humeral shields ( Fig. 4A).
Gnathosoma ( Fig. 4B): Slightly widened in the posterior part, with rounded posterolateral margin, length 55 58 together with palps, width 4850.
Prodorsal shield ( Fig. 4B): Covers the entire pronotum, with a dotlike pattern on the surface, length 105 110 along midline, width 173178, with two internal vertical seta (vi) of filiform.
Hysteronotal shield ( Fig. 4C): Strong sclerotized on hysteronotum, anterior part with transverse line of semicircular sclerites, length 305320 from anterior margin to base of setae h3, width 188190 at level of setae c2. Opisthosomal lobes shot, triangleshaped. Interlobar membranes situated from base of terminal cleft to level of setae h1. Setae h3 wide leaflike shaped, with longitudinal line.
Sternum ( Fig. 4D, E): Epimerites I fused. Genital apparatus small, located between legs III and IV. Setae g and genital papillae situated on paragenital sclerites (ps). Paragenital sclerites bandshaped, situated on both sides of genital apparatus, anterior part not fused, extending after level of setae 4a. Setae ps3 situated on adanal sclerites. Adanal discs present. Postlobar membranes (pm) tongueshaped, with internal extension.
Legs: Genua I and II with setae cG of hairshape. Tarsi IV with hooklike apophyses ( Fig. 4D).
Female: length 440445 of idiosoma from anterior end to bases of setae h3, width 200220 at level of setae c2 ( Fig. 5A).
Gnathosoma ( Fig. 5B): length 7583 including palps, width 6063.
Prodorsal shield ( Fig. 5B): Shaped as in male. Length 180183 at based of setae vi, width 113120 at posterior part.
Hysteronotal shield ( Fig. 5C): Anterior part slightly concave, length 330335, width 185195 at based of setae c2. Opisthosomal lobes with shallow terminal cleft. Interlobar and lateral membranes absent.
Sternum ( Fig. 5D, E): Epigynum horseshoeshaped, length 5658, width 4548. Supranal concavity circularshaped, divided from terminal cleft.
Remarks. Ptiloxenus major was originally described without illustration by Mégnin and Trouessart (1884) based on specimens collected from the great crested grebe ( Podiceps cristatus ) and redthroated diver ( Gavia stellata = Colymbus septentrionalis ) in Europe. Thereafter, this species was redescribed by several mite taxonomists with detailed morphological descriptions and illustrations ( Dubinin, 1951; 1956; Gaud and Atyeo, 1996; Krantz and Walter, 2009). Their descriptions and illustrations are very similar, except for some differences in the position of the setae on the genital area, and the shape of the paragenital sclerites. Korean specimens matched well with those of Gaud and Atyeo (1996), although some differences were found in the following characteristics in males: (1) transverse line of semicircle located on anterior part of hysteronotal shield; and (2) genital papillae located on paragenital sclerites.
Host. Specimens were collected from the surface of flight feathers on the wings of great crested grebe, Podiceps cristatus .
Distribution. Canada ( Krantz and Walter, 2009), Europe ( Dubinin, 1951; 1956; Davert and Ehrnsberger, 1998; Gaud and Atyeo, 1996), Korea (this study).
Deposition. NIBRIV0000754047 and NIBRIV0000810 1590000810163.
Molecular characteristics. The COI sequences with 597 bp lengths were obtained from two individuals of P. major (GenBank accession numbers: MG459420 459421). The sequence alignment did not contain any insertions or deletions. No frame shift was detected after amino acid conversion using the invertebrate mitochondrial genetic code.
Identifiers. YeongDeok Han and GiSik Min.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Ptiloxenus major ( Mégnin and Trouessart, 1884 )
Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae 2017 |
Ptiloxenus major
Dubinin, V. B. 1951: 147 |
Bedford, G. A. H. 1936: 71 |