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

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

Coxisternal region: Whole surface - resembling notogastral one — foveolate (Fig. 14). Epimeres mostly well framed, bo. 4 observable as a straight sharp line. Median epimeral setae (la, 2a, 3a and 4a) slightly dilate, phylliform (Fig. 12), all others thin, simple, but all well barbed. Anogenital region: Whole surface — with the exception of genital plate — foveolate. Anal setae equal in length, adanal setae longer than the anal ones, all blunt at tip. Lyrifissures iad in paraanal position. Legs: Type of ultimate setae (u): L-L-L-L. All joints of legs thin, and long. Tibia of leg I with a large process anteriorly, cp

1 arising on it. Solenidium a>

1 originating also on a tubercle. Two sharp teeth present on all tarsi. Type material: Holotype (1288-HO-88): No. 105; 2 paratypes from the same sample. Holotype and 1 paratype (1288-PO-88): deposited in the HNHM, 1 paratype in the MHNG. Remarks : The new species is one of the largest species in this genus. It is distinguished from all the known taxa by the form of its median condyles of the prodorsum and notogaster and by the dilated phylliform epimeral setae. Dolicheremaeus pseudofurcatus sp. n. (Figs 15-19) Measurements — Length : 458-501 ;j.m, width : 156-240 ;j.m. Prodorsum: Rostrum wide, rostral and lamellar setae setiform, nearly equal in length, they arise along a transversal line. The latter sparsely, the preceding densely ciliate. Lateral lamelliform expansion short, weakly developed, not reaching the insertion of rostral setae. Lamellae long, straight, running parallel, they bend basally and rectangularly by the bothridium. Interlamellar setae blunt at tip, long, directed outwards. Ventral bothridial plate triangular. Sensillus bifid at tip. Prodorsal condyles connected with each other (Fig. 17), they compose a transversal band. Notogaster: Surface punctate, foveolae not observable. Ten pairs of notogastral setae present, nine pairs of them flagellate (Fig. 15), only setae c

2 blunt at tip. All setae sparsely and finely cilitae. Notogastral condyles well separated from each other, the median (co. nm.) ones nearly semicircular, the lateral ones (co. nl. ) larger, but flatter than the others. Lateral part of podosoma: Pedotecta 1 narrow, its surface — similarly the exobothridial region (Fig. 19) — pustulate. Pedotecta 2-3 without posterior angulation. Discidium triangular. Coxisternal region: Surface without any sculpture. Epimeral border and apodemes as shown in Fig. 18. All epimeral setae well ciliate. Anogenital region: Surface also smooth. Anterior pair of genital setae the shortest of all. Anal and, first of all, adanal setae flagellate at tip, setae ad

y and ad

3 much shorter than ad„ (Fig. 16). Legs: Type of the ultimate setae: L-L-L-L. Solenidiumo)

x

of tarsus I longer but thicker than OJ

2

, the latter bent backwards. Type material: Holotype (1289-HO-88): No. 105; 4 paratypes: from the same sample. Holotype and 2 paratypes (1289-HO-88): deposited in the HNHM, 1 paratype: MHNG and 1 paratype: SUM.* Remarks : The new species stands very near to Dolicheremaeus furcatus BALOGH, 1961. however, the latter is distinguished from the new species by the form of setae la and lm (they are blunt at tip), the shorter branches of sensillus (Fig. 20), and by the not flagellate adanal setae. Leptotocepheus flagellifer sp. n. (Figs 21-24) Measurements — Length : 951 pun, width : 426 u.m. Prodorsum: Rostrum very wide, lamellae long, convergent, its cuspis reaching far out to the insertion point of lamellar setae. Rostral and lamellar setae nearly equal in length, both pairs setiform and distinctly barbed, lamellar setae arising slightly behind the rostral ones. Interlamellar setae blunt at tip, shorter than the preceding ones (Fig. 21). Lateral lamelliform expansion bent and directed to the lateral margin of prodorsum, not reaching the insertion of the rostral setae. Sensillus thin, only scarcely dilated distalfy, without a typical head. Its distal end roughened. Median pairs of prodorsal condyles much greater than the lateral one (Fig. 22), they are rounded posteriorly. * Sokoine University Morogoro, Tanzania.