S. Mahunka szerk.: Folia Entomologica Hungarica 60. (Budapest, 1999)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK LX 1999 pp. 45-56 Five new hypopial nymphs (Acari: Acarididae and Histiostomatidae) described from different habitats S. A. Eraky Five new hypopial nymphs (Acari: Acarididae and Histiostomatidae) described from different habitats — Five new mite species represented only by their hypopial stages (heteromorphic deutonymphs), found in different habitats (i.e., nests of termites; manure of animals and on potato tubers) are described. From nest of termite, Amitermes desertorum (Desneux, 1902), the Botanical Island, Aswan, a new species of Histiostoma Kramer, 1876 {Histiostoma mannái sp. n.), from manure of animals, animal-sheds, Assiut, three new species of the genera, Acotyledon Oudemans, 1903 and Copronomoia Mahunka, 1976 (Acotyledon manuri sp. n.; Acotyledon nerminka sp. n. and Copronomoia mahunkai sp. n.), and from potato tubers and manure of animals, Assiut, a new species of Caloglyphus Berlese, 1923 (Caloglyphus csibbii sp. n.). The descriptions and illustrations of the new species are given hereunder. ACARIDIDAE Caloglyphus csibbii sp. n. (Figs 1-8) Measurements — Length: 240-275 \m\ and breadth: 162-195 urn. Dorsal side (Fig. 1): Propodosoma nearly triangular in its outline, an extremely long and strong vi setae project forward from tip of propodosoma. Setae ve shorter, setae sex long, curved and robust. Inner pair of propodosomatic setae (sei), shorter and thinner than the outer pair (see), originating in front of them. Surface of propodosoma ornamented with short rugae and punctulae laterally, and rough punctulae behind apex. Basal part of propodosoma smooth. Dorsosejugal region ornamented with transversal lines and rugae. Notogastral surface smooth, setae short and thin, some originating from a long basis. Ventral side (Fig. 2): Infracapitulum of gnathosoma (Fig. 8) oblong, palpi short, but distinct, solenidia long, infracapitular setae well observable. Apodemes thin, anterior sternal plate with ap.sa and ap

2 short, ending free. In posterior sternal plate, ap.sp missing, therefore epimeres 3 and 4 also open. Epimeres 1, 3 and 4 with suction disks. Adhering plate well developed, filling surface between legs IV, all disks D present, disks Ds

2 and Z)s

3 reduced. Legs (Figs 4-7): All legs with long robust claws, tarsus of leg I with long, that of leg II with short spoon-shaped adhering setae. Solenidia co

] of tarsus of leg I long, thick and