Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 80. (Budapest 1988)

Mahunka, S.: The Oribatid fauna of Tanzania (Acari), II

ANNALES HISTORICO-NATURALES MUS EI NATIONALIS HUNGARICI Tomus 80. Budapest, 1988 p. 189-213. The Oribatid fauna of Tanzania (Acari), II. by S. MAHUNKA, Budapest S. MAHUNKA: The Oribatid fauna of Tanzania (Acari), II. — Annls hist. nat. Mus. natn. hung. 1988 80: 189-213. Abstract — Oribatid species deriving from material collected in Tanzania are treated. The description of fourteen new species is given and two new genera: Tanzoppia gen. n. (fam., Oppiidae) and Scheloribatoides gen. n. (fam. Scheloribatidae) are erected. Complementary description of the type species of the genus Uracrobates BALOGH et MAHUNKA, 1966 is also presented. With 64 figures. Introduction — In my earlier paper of this series (MAHUNKA 1988) I briefly discussed the reasons and the goal of our soil-zoological investigations in Tanzania.* Owing to technical problems I publish my results in parts of a series. My contribution comprises those species, which mainly originate from a very rich soil samples, collected in an undestroyed rain-forest (Kwamsambia Forest Reserve) near Amani. From the elaborated material I give only the description of fourteen new species, of which two also represent new genera: Tanzoppia gen. n. and Scheloribatoides gen. n. In connection with the description of a new Uracrobates species I also examined the type of this genus (Uracrobates magniporosus BALOGH et MAHUNKA, 1967) for which I present some new drawings. Besides the description of the new taxa I also found some very important results, e.g. in two, until now monotypical genera (Leptotocepheus BALOGH, 1961 and Notogalumna SELLNICK, 1959) I am able to publish the 2nd and 3rd species. Furthermore, the distributi on of the genera Mochlozetes GR AND JE AN, 1930, and Notogalumna which was known only from he Neogaea and the Oriental Region respectively, is now extend to the Ethiopian Region

. The locality data of the enumerated species from Tanzania are given briefly: No. 103. Kwamsambia Forest Reserve, Tanga region, 10 km S from Kwamkoro, 1050 m, 10. II. 1987. — Berlese and Nematoda samples from the litter and soil of a primary rain-forest, along a straight line (see in the introduction). Five different samples (A-E). No. 105. Kwamsambia Forest Reserve, Tanga region, 10 km S from Kwamkoro, 1050 m, 10. II. 1987. — Sifted material from litter of 4x0.5 m

2 area (see No. 103). DESCRIPTION OF THE NEW TAXA Dolicheremaeus grafaius sp. n. (Figs 1-4) Measurements — Length: 762 jxm, width: 408 urn. Prodorsum: Rostrum very wide, its surface foveolate. Lamellae long, straight, running parallel. Lateral lamelliform expansion narrow, running marginally. Interlamellar region smooth, basally with some short longitudinal crests, rest of surface ornamented. Rostral and lamellar setae normal, setiform, nearly equal in length. Interlamellar setae short, blunt at tip. Sensillus short, with a small head, latter with some minute spines (Fig. 3). All prodorsal condyles large, equal in length, but median ones rounded, lateral pair (co. pi.) nearly triangular (Fig. 2). * This work was also referred to in another paper (MAHUNKA, Pocs & Zicsi 1988).