Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 92. (Budapest 2000)

Mahunka, S.: Some oribatid mites from Yemen (Acari: Oribatida) (Acarologica Genavensia LXXXVIII)

likewise. On the other hand, he does not mention one of the most important features, the calcar of pedotecta I, which is more than striking, though his figure suggests it. Final decision shall be made only after the examination of the type. Zygoribatula globosa sp. n. (Figs 16-18) Material examined - Holotype: Yemen 2475, 2 paratypes: Yemen 1773, 2 paratypes: Yemen 1829. Holotype and 2 paratypes: MHNG, 2 paratypes: HNHM (1542-PO-1996). Description - Measurements: Length of body: 426-527 pm, width of body: 326-387 pm. Prodorsum: Rostrum elongated, with sharply elongated apex. Lamellae well developed, lamellar cusps absent, but theirt distal end with the translamella well protruding from the prodorsal surface (Fig. 18). Translamella not narrower than the dital part of lamellae. Rostral setae setiform, lamellar and interlamellar ones blunter at tip. Sensillus clavate, its head blunt. Exobothridial setae comparatively long, thinner than the other prodorsal setae. Notogaster: Median part of dorsosejugal suture well arching anteriorly. Surface with indistinct, fine foveolae, sometimes this sculpture hardly discernible. Fourteen pairs of notogastral setae present, six pairs arising on the anterior half of the notogaster are bacilliform, and the median setae (da, dm) clearly longer than the other setae in the posterior half of the notogaster (Fig. 16). Among the porose areae Act the largest, the others gradually becoming smaller posteriorly, A., are the smallest. Lateral part of podosoma: Tutorium weak, short. Circumpedal carina strong, it is fused with a minitcctum running from the sejugal region (Fig. 18). Ventral regions: Surface with the same (foveolate) sculpture as notogaster. All setae in the coxisternal region and on the ventral plate short, fine, mostly ciliate (Fig. 17), setae Jc the longest of all. Remarks - The new species stands closest to Zygoribatula robusta GROEBLER, 1993. They may be distinguished from each other by the ratio of the prodorsal setae (in > le>ro in robusta), and o much shorter than la or da (longer in robusta). Translamella also narrower than in robusta, figured by GOEBLER (Fig. 10). Etymology - The species is named after the form of its notogaster. Zygoribatula mabar sp. n. (Figs 19-21) Material examined - Holotype: Yemen 2480, 4 paratypes from the same sample, 2 paratypes: Yemen 2477, 2 paratypes: Yemen 1773. Holotype and 5 paratypes: MHNG, 3 paratypes: HNHM (1543-PO-1996) Description - Measurements: Length of body: 472-507 pm, width of body: 276-3 12 pm. Prodorsum: Rostrum sharply pointed, its apex slightly elongate. Lamellae wide, translamella narrower, a small cusp exists, bearing lamellar setae. Rostral, lamellar and interlamellar setae equally distinctly barbed and no difference in size. Sensillus short, its head oval (Fig. 19).