Euphthiracarus (Euphthiracarus) paranetron, Niedbała & Starý, 2016

Niedbała, W. & Starý, J., 2016, Six new species of ptyctimous mites (Acari: Oribatida) from Madagascar, Acarologia 56 (4), pp. 485-496 : 486-489

Euphthiracarus (Euphthiracarus) paranetron n. sp.

( Figures 2 )

Description

Measurements of holotype — Prodorsum: length 218, width 149, height 94; prodorsal setae: sensillus (ss) 68, interlamellar (in) and rostral (ro) 91, lamellar (le) 76, exobothridial (ex) 29; notogaster: length 414, width 262, height 257; notogastral setae: c 1 56, c 1 /<c 1 - d 1 =0.5, h 1 and ps 1 53; genitoaggenital region 132 × 53; anoadanal region 202 × 43.

Medium-sized species. Colour yellow. Surface of body reticulate.

Prodorsum — with two pairs of parallel lateral carinae. Sensilli (ss) rather long, with elongated, rough, spindle-shaped head. Prodorsal setae long, erect, attenuate; relative lengths of prodorsal setae in = ro> le> ss> ex.

Notogaster — with relatively short (c 1 <c 1 - d 1), rigid notogastral setae covered sparcely with spines; notogastral setae c 1-3 remote from anterior margin, setae c 1 and c 2 further removed than c 3.

Ventral region — Setae h of subcapitular mentum longer than distance between them. Nine pairs of genital setae with formula 8: 1, two pairs of rather long aggenital setae. Anal setae an 1 and an 2 shorter, slender and thinner than adanal setae ad 1 and ad 2. Lyrifissures iad situated between adanal setae ad 2 and anal setae an 3.

Legs — Chaetome of legs without tarsi: I: 1-3- 5 (2)-5(1), II: 1-3-2(1)-4(1), III: 2-2-2(1)-2(1), IV: 2-1- 1(1)-2(1), all tarsi monodactylous.

Material examined — Holotype is deposited at DATE from locus typicus: North Madagascar, Montagne d’Ambre National Park, circuit Ampijoroana, 7. I. 2015, evergreen rain forest, latitude 12°31’28" S, longitude 49°09’52" E, altitude 950 m, sifted forest leaf litter sample under Pandanus sp. tree, Winkler apparatus extraction, leg. P. Ba ˇnaˇr and E. M. Rabotoson.

Etymology — The prefix para is Latin meaning "near" and refers to the similarity the of the new species with the species Euphthiracarus netron Niedbała et Starý, 2014 .

Comparison — The new species is distinguishable from the similar E. netron Niedbała et Starý, 2014 by the reticulation of body surface (versus punctuation of surface), presence of two pairs of lateral carinae of prodorsum (versus one pair), slightly different shape of sensilli, with head like elongated spindle (versus short spindle), longer exobothridial setae ex, longer than distance between setae le and ro (versus shorter than le -ro), longer setae h of mentum than distance between them (versus setae h shorter), arrangement of genital setae: 8: 1 (versus arrangement 7: 2) ( Niedbała and Starý 2014b).

Figures

FIGURE 2: Euphthiracarus paranetron n. sp. (holotype): A – prodorsum, dorsal view; B – prodorsum, lateral view; C – opisthosoma, lateral view; D – mentum of subcapitulum; E – ventral side.