Megasyringophilus cacatua, Glowska, Eliza & Laniecka, Izabella, 2013

Glowska, Eliza & Laniecka, Izabella, 2013, Two new quill mite species (Prostigmata: Syringophilidae) parasitizing Australian birds, Zootaxa 3670 (3), pp. 385-390: 386-390

publication ID

http://dx.doi.org/10.11646/zootaxa.3670.3.9

publication LSID

lsid:zoobank.org:pub:FE7CEBD2-1E3F-4FE1-B883-7423B29D5BD4

DOI

http://doi.org/10.5281/zenodo.3507658

persistent identifier

http://treatment.plazi.org/id/A05D0755-1202-9572-0CF9-F8E9FB1FFCEA

treatment provided by

Plazi

scientific name

Megasyringophilus cacatua
status

sp. nov.

Megasyringophilus cacatua  sp. nov.

( Figs. 6–15View FIGURES 6 – 9View FIGURES 10 – 15)

Female (holotype). Total body length 1535. Gnathosoma  . Infracapitulum apunctate. Hypostomal apex poorly visible. Stylophore apunctate, constricted posteriorly, 445 long. Movable cheliceral digit 335 long. Medial branches of peritremes with poorly discernible chambers, lateral branches invisible ( Fig. 8View FIGURES 6 – 9). Idiosoma  .

Propodonotal shield well sclerotized, apunctate. Propodonotal setae arranged 2 – 1 – 1 – 1 – 1. Length ratio of setae vi:ve:si 1: 5: 5. Hysteronotal shield fused to pygidial shield, apunctate. Terminal setae f 1, f 2, h 1, and h 2 long. Setae g 1 1.7 times longer than g 2 and 2.5 times longer than pseudanal setae ps1, 2. Length ratio of setae ag 1:ag 2:ag 3 1.1: 1: 1.7. All coxal fields apunctate. Legs. Claws of legs I –IV without basal angle. Setae tc” 1.3 times longer than tc’. Fan –like setae p’ and p” multiserrate, with ca. 40 tines. Lengths of setae: vi 115, ve 570, si 555, se 535, c 2 345, c 1 500, d 2 500, d 1 365, e 2 355, f 1 745, f 2 595, h 1 785, h 2 785, ag 1 320, ag 2 280, ag 3 485, ps 1 and ps 2 105, g 1 250, g 2 145, tc’ 105, tc” 135, l’RIII 215, l’RIV 155.

Male (paratype). Total body length 1380. Gnathosoma  . Infracapitulum apunctate. Stylophore constricted posteriorly, apunctate, 345 long. Movable cheliceral digit 335 long. Median branches of peritremes with poorly discernible borders between chambers. Lateral branches invisible ( Fig. 13View FIGURES 10 – 15). Idiosoma  . Propodonotal shield with deeply concaved anterior margin, punctate. Length ratio of setae vi:ve:si 1: 3: 3. Setae si and c 2 situated at same transversal level, setae se situated posterior to them. Hysteronotal shield apunctate. Setae d 2 1.6 times longer than d 1. Setae h 2 3.4 times longer than f 2. Setae ag 2 1.3 times longer than ag 1. Claws of legs I –IV without basal angle ( Fig. 14View FIGURES 10 – 15). Setae tc” III –IV twice longer than tc’III –IV. Fan-like setae p’ and p” multiserrate ( Fig. 15View FIGURES 10 – 15). Lengths of setae: vi 105, ve 310, si 310, se 380, c 2 430, c 1 390, d 2 355, d 1 220, e 2 155, f 2 125, h 2 430, ag 1 330, ag 2 430, ps 1 20, ps 2 30, g 1 15, g 2 30, tc’ 80, tc” 155.

Type material. Female holotype and male paratype from Cacatua  galerita (Latham) ( Psittaciformes  : Psittacidae  ), AUSTRALIA: Mount Hart, 10 September 1976, coll. Kimberley Expedition.

Type deposition. Holotype and paratype are deposited in the Biozentrum Grindel und Zoologisches Museum Hamburg in the University of Hamburg, Germany.

Etymology. The name cacatua  refers to the generic name of the host.

Differential diagnosis. This new species Megasyringophilus cacatua  sp. nov. is morphologically similar to M. platycercus Bochkov and Fain  described from Platycercus  eximius (Shaw) ( Psittaciformes  : Psittacidae  ) ( Bochkov & Fain 2003). Females of both species have claws of legs III –IV without basal angle and stylophore constricted posteriorly. Females of M. cacatua  sp. nov. are distinguishable from M. platycercus  by the length ratio of setae vi: ve 1: 5, g 2:ag 1 1: 2, and by the presence of the hysteronotal shield. In females of M. platycercus  , the length ratio of setae vi:ve is 1: 2.3, g 2, and ag 1 are subequal in the length and the hysteronotal shield is absent.