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

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

Notogaster: Surface sparsely foveolate. In the dorsosejugal region three condyles present. Median one large, round, the lateral pair smaller (Fig. 25). Ten pairs of blunt at tip notogastral setae present, no essential dhTerence among them, only four pairs in posteromarginal position slightly shorter than the others. Coxisternal region: Surface ornamented by round foveolae in irregular position. Epimeral borders and apodemes thin, ap. 4. a sharp line, along them some rounded structure also observable. All epimeral setae short and simple (Fig. 28). Anogenital region: All setae of this region short, aggenital setae nearly as long as anal ones, ad

u ad

2 and ad{ setae equal in length and longer than the preceding ones. Lyrifissures iad in apoanal position. Legs: Type of the ultimate setae : L-L-L-L. Type material: Holotype (1291-HO-88): No. 105; 33 paratypes: from the same sample. Holotype and 29 paratypes (1291-PO-88): deposited in the HNHM, 2 paratypes: MHNG and 2 paratypes: SUM. Remarks : The relegation of the new species is rather problematic, nevertheless, in view of the median unpaired notogastral condyle its present combination seems to be justified. It clearly differs from the so far known species by the wide base of the condyles: thereby the anterior margin of the notogaster appears to be undulate. Tanzoppia gen. n. Diagnosis: Family Oppiidae. Rostrum normal, without an incisure. Costula absent, lateral chitinous laths well developed. Sensillus clavate and short. Eleven pairs of notogastral setae present, three pairs of them very long, much longer than the others. Epimeral borders compose a welldeveloped framework. Setae lc arising far from pedotecta 1. Discidium present, sharply pointed. Anogenital setal formula: 5-1-2-3, setae ad

l in postanal position. Lyrifissures in adanal position. All joints of legs long, No basal elevation of solenidia 9?, and cp

2

. Type-species: Tanzoppia triseta sp. n. Remarks: The new genus resembles to the Tectoppiella MAHUNKA, 1984, and Heteroppia BALOGH, 1970. However, both genera have six pairs of genital and ten pairs of notogastral setae. Therefore, the establishment of a new genus is necessary. Tanzoppia triseta sp. n. (Figs 29-32) Measurements — Length: 392-416 urn, width: 230-248 u.m. Prodorsum: Rostrum with short, but nasiform apex. Rostral setae dilate, much stronger than the other ones, esentially longer prodorsal setae, in > le > ro. Setae rostrales densely, all others scarcelly ciliate. Median costulae absent, lateral, arched longitudinal chitinous laths well developed. Three pairs of spots in the interbothridial region, some other ones in front of the bothridium present. Sensillus short, its head dilate, fusiform (Fig. 29). Exobothridial region well granulated (Fig. 32). Behind the bothridium, in the sejugal region, one pair of tubercles observable, they are connected by a sharp line with the bothridium. Notogaster: Very high, it forms nearly a semicircle in lateral view. Eleven pairs of notogastral setae present, three pairs of them very long, c

2 the longest (248 urn) of all. All others very short and all — with the exception of setae p

x and p

2 — very thin. All setae finely ciliate. Coxisternal region: All apodemes and epimeral borders well developed, the latter compose a well-developed framework. Between epimeres 2 and 3-4 a wide split present (Fig. 30). Epimeral surface with an irregular polygonal sculpture. All setae thin, long and well ciliate. Setae lc stand far from pedotecta 1. Pedotecta 2-3 very small, discidium sharply pointed. Anogenital region: Genital aperture narrow, with 5 pairs of genital setae (Fig. 31). Anterior pairs of them the shortest, the posterior one the longest of all. Aggenital and adanal setae simple, ad

1 the shortest, and arising on a transversal crescentiform thickening. Lyrifissures iad in adanal position. Legs: All joints of legs very long and thin. Type material: Holotype (1279-HO-88): No. 105; 2 paratype: from the same sample; 1 paratype: No. 103. Holotype and 2 paratype (1279-PO-88) deposited in the HNHM and 1 1 paratype: MHNG. Remarks : The new species resembles Tectoppiella ansifera MAHUNKA, 1985, however, the latter has 6 pairs of genital setae and its rostrum is tripartite.