Austrophthiracarus cajanumaensis, Niedbała & Illig, 2007

Niedbała, Wojciech & Illig, Jens, 2007, Ptyctimous mites (Acari, Oribatida) from the Ecuador rainforest, Journal of Natural History 41 (13 - 16), pp. 771-777 : 774-776

Austrophthiracarus cajanumaensis sp. nov.

( Figure 2 A–G)

Material examined

Holotype and three paratypes: Ecuador, Cajanuma National Park , 4 ° 06.7119S, 79 ° 10.5819W, soil litter fermentation horizon, December 2005, leg. J. Illig.

Measurements of holotype

Prodorsum: length 379, width 212, height 116, sensillus 35.4, setae: interlamellar 37.9, lamellar 40.5, rostral 43.0, exobothridial 22.8; notogaster: length 616, width 454, height 429, c 1 227, c 1 / c 1 – d 151.61, h 1 222, ps 1 263, ps 4 60.6; genitoaggenital plate 151X95.9, anoadanal plate 263X111.

Description

Colour brown. Surface of body dotted.

Prodorsum without posterior furrows and lateral carinae, sigillar fields well discernible. Sensilli short, with narrow pedicel and club-like head, smooth. Setae short, spiniform. Notogaster with 21 pairs of rather long setae (c 1. c 1 – d 1), flagellate, covered with small cilia at distal half. Setae c 1 and c 3 situated near anterior margin, setae c 2 far from margin. Vestigial setae f 1 posteriorly of h 1 setae. Two pairs of lyrifissures ia and im present.

Setae h of mentum slightly longer than distance between them. Genitoaggenital plates with nine pairs of genital setae with arrangement: 4+4:1. Anoadanal plates each with seven pairs of flagellate setae, two anal and five adanal setae; anterior adanal setae shorter than others.

Legs: formulae of setae and solenidia of ‘complete type’. Setae d of femora I remote from distal end of article.

Etymology

The specific name cajanumaensis refers to the locality Cajanama National Park.

Comparison

The new species is similar to Austrophthiracrus hirtus (Balogh, 1984) from Colombia but the latter species has longer prodorsal setae, fewer pairs (18) of notogastral setae, and four pairs of adanal setae.

Figures

Figure 2. Austrophthiracarus cajanumaensis sp. nov., holotype. (A) Prodorsum, lateral view; (B) prodorsum, dorsal view; (C) opisthosoma, lateral view; (D) mentum of infracapitulum; (E) genitoaggenital plate; (F) anoadanal plate; (G) trochanter and femur of leg I.