Amphialycus (A.) mayteni,

Uusitalo, Matti, Ueckermann, Edward A. & Theron, Pieter D., 2020, A review of the family Alycidae (Acari, Acariformes) from South Africa, Zootaxa 4858 (3), pp. 301-340: 318-321

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Amphialycus (A.) mayteni

sp. nov.

Amphialycus (A.) mayteni  sp. nov.

( Figs. 63–75View FIGURES 63−67View FIGURES 68−75)

Description. Dorsum ( Figs. 63–65View FIGURES 63−67). Length 320–400 μm; holotrichous dorsum, additional setae on ventral setae, short parallel ridges on soft integument; sclerotic crista from naso to sensillar area, setae vi on prodorsal shield, striated naso very small, setae exp very small, sparsely barbed, medial to anterior pair of lateral eye spots.

Venter ( Figs. 66–72View FIGURES 63−67View FIGURES 68−75). Genital valves each with 21 genital setae; 6 anal setae per valve.

Gnathosoma  ( Figs. 68–71View FIGURES 68−75). Cheliceral setae absent; rutella with distal lobes, 1 pair of adoral setae; 4 microtrichous palpal eupathids.

Legs. Solenidial formula for tarsi, tibiae, genua and femora on legs I, II, III and IV, respectively: 2-1-0-0, 2-2-

2-0, 4-2-2-1, 2-0-0-0.

Life stages:

Protonymph (n=1, Fig. 75View FIGURES 68−75), 1 genital seta per valve.

Tritonymph (n=3, Fig. 74View FIGURES 68−75), 15 genital setae per valve, 2 pairs of eugenital setae, for probable tritonymphal sexual dimorphism, see Kethley (1991).

Adult male (n=2, Figs. 66, 67View FIGURES 63−67), 17–24 genital setae per valve, 10 pairs of eugenital setae.

Adult female (n=4, Fig. 72View FIGURES 68−75), 17–24 genital setae per setae, 1 pair of eugenital setae.

Type material. Holotype male, 1 paratype male, 4 paratype females, 3 paratype tritonymphs and 1 paratype protonymph from Maytenus cymosa  , vicinity of Potchefstroom, NORTH-WEST PROVINCE, 13 April 1972, J.A. Huyssteen. Deposited at ARC-Plant Health and Protection, Pretoria, South Africa. 

Differential diagnosis. This species can be differentiated from another holotrichous species, A. acaciae  , and from the neotrichous species of the genus by lacking cheliceral setae ( Fig. 68View FIGURES 68−75), by having a very small (reduced) naso ( Fig. 63View FIGURES 63−67), only one pair of well-developed adoral setae ( Fig. 69View FIGURES 68−75) and the solenidial formula.

Etymology. The specific name refers to the genus of the dominant tree of the collection site, Maytenus  .