Euphthiracarus oblongus, Liu, Dong, Wu, Donghui & Chen, Jun, 2012

Liu, Dong, Wu, Donghui & Chen, Jun, 2012, Six new species of the genus Euphthiracarus (Acari: Oribatida: Euphthiracaridae) from China, Zootaxa 3481, pp. 47-59: 51-54

publication ID

http://doi.org/ 10.5281/zenodo.211663

publication LSID

lsid:zoobank.org:pub:8D913C23-AF71-4D14-B346-61A2D7F7029A

persistent identifier

http://treatment.plazi.org/id/5C3EE522-FFA5-605C-FF79-7229FAE2097C

treatment provided by

Plazi

scientific name

Euphthiracarus oblongus
status

sp. nov.

Euphthiracarus oblongus   sp. nov.

( Figs. 11–15 View FIGURES 11 – 15 )

Material examined: Holotype: adult (in alcohol, W- 89-125), China: Hubei Province, Badong County (30 ° 42 ' 18.35 "N, 110 ° 17 ' 52.28 "E), Tiechanghuang Forestry Centre, from litter under broadleaf forest, 1500 m a.s.l., 12 Aug., 1989, leg. Yun-Qi Cui.

Etymology. The new specific name “ oblongus   ” is from Latin and refers to the oblong head of sensilla.

Measurements: Holotype: Prodorsum: length 279, width 190, height 105, setae: ss 94, ro 80, in 150, le 95, ex 15, distance between setae: ro –ro 55, in –in 93, le –le 45, in –le 77, le –ro 70; notogaster: length 512, width 335, height 325; setae: c 1 103, c 2 100, c 3 95, c p 100, d 1 76, d 2 70, e 1 110, e 2 70, h 1 116, h 2 75, h 3 72, ps 1 110, ps 2 70, ps 3 65; distance between setae: c 1 –d 1 150, d 1 –e 1 130, e 1 –h 1 90, h 1 –ps 1 77; ventral region: genitoaggenital plate 180 × 80, anoadanal plate 265 × 65.

Colour yellowish. Surface of body punctuate.

Prodorsum with two parallel lateral carinae on each side, upper carina longer and stronger than lower one; sensilla with long and narrow pedicel and oblong and smooth head; interlamellar and lamellar setae erect, covered with small and sparse spines in distal half; rostral setae thin, smooth and long, flagellate and directed inwards distally; comparative length: in>le> ss> ro>ex.

Notogaster with 14 pair of setae, relatively short, similar in shape to interlamellar setae, sparsely barbed in distal half; setae c 1–3 remote from anterior border, setae c 1 slightly more so than setae c 2 and c 3; vestigial setae f 1 located anteriorly of setae h 1; arrangement of opisthosomal glands and lyrifissures typical for genus.

Genital plates each with nine setae, g 1–3 short and fine, located in progenital position, posterior six genital setae longer and thicker; two pairs of aggenital setae present, spiniform, nearly equally thick, setae ag 2 slightly longer than ag 1; setae an 1 and an 2 smooth and flagellate at distal end, setae an 3 and adanal setae shorter, robust and covered with small and sparse spines in distal half; lyrifissures iad situated between setae an 3 and ad 3.

Setae h of mentum longer than distance between them; palps three-segmented with setal formula: 2 - 2-8 (1); chaetotaxy of legs (without tarsi): I: 1-3 - 4 (2)- 5 (1); II: 1-4 - 3 (1)- 5 (1), III: 2 - 2 - 2 (1)- 2 (1), IV: 2 - 1 - 1 (1)- 2 (1); all legs heterotridactylous.

Distribution. Known only from the type locality.

Remark. This new species is similar to E. klabati Niedbała, 2000   , but can be easily distinguished from the latter species by following characters: surface of body punctuate; two pairs of lateral carinae present; posterior six genital setae nearly equally long, g 9 not obviously longer than other genital setae; all legs heterotridactylous.