Machadocepheus filiferus, Mahunka, S., 1986

Mahunka, S., 1986, A survey of the family Carabodidae C. L. Koch, 1836 (Acari: Oribatida), Acta Zoologica Hungarica 32, pp. 73-135 : 129

Machadocepheus filiferus sp. n.

Measurements. - Length: 606-722 µm, width: 360-451 µm.

Prodorsum: Rostrum slightly concave, its surface foveolate (Fig. 139). Rostral setae thin. Lamellae with a triangulär cuspis, lamellar setae setiform, margin neither serrate nor spinulate. Lamellae with some weak areolae but interlamellar surface smooth. Prodorsum strongly convex medially in lateral view, but the interlamellar area concave. Interlamellar setae setiform, long, reaching outwards. Sensillus very long, uncate but obtuse, its outer surface finely barbed. Dorsosejugal region deeply concave.

Notogaster: Median part strongly convex, with two pairs of strong (Fig. 138) and an unpaired, weaker and shorter crista. Excepting the marginal part - the whole surface irregularly areolate. Fifteen pairs of very thin, short, filiform notogastral setae present.

Lateral part of prodosoma: A weak tutorium, without free cuspis observable. Pedotecta I with a tube (supracoxal gland) its orifice opening laterally. Surface of pedotecta smooth.

Coxisternal region: Mental and epimeral surface foveolate. Epimeral setal formula: 2 —1—3— 3. Setae 1c reduced. Epimeral borders well developed, being connected medially (Fig. 140).

Anogenital region: Anogenital setal formula: 4 —1—2— 3 [in one case five (!) pairs of genital setae]. All setae thin and simple. Genital and anal apertures well framed, some other tecta and ribs also present, one pair in marginal position stronger than the others. Lyrifissure iad well observable.

Legs: All trochanters and femora strongly foveolate, other joints glabrous. Seta l" G of the legs I and II spiniform.

Material examined: Holotype: Ang. 16888 : Angola, Environs de Dundo, foret de la Luachimo , 28. III. 1962. (Sanjinje et Barros Machado coll.) 6 paratypes from the same sample. Holotype and 2 paratypes in the MRAT , 3 paratypes ( 1102-PO-85 ): HNHM , 1 paratype: MHNG.

Remarks: On the ground of the very thin, filiform setae and the notogastral crests the new species may be well distinguished from all the other Machadocepheus species.