Petralycini Uusitalo, 2010

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 : 332

Petralycini Uusitalo, 2010

Type genus: Petralycus Grandjean, 1943 .

Differential diagnosis. This tribe (and genus) can easily be segregated from the rest of the Endeostigmata by the strongly elongated but robust chelicerae; two pairs of prodorsal sensilla in separate bothridia, anterior pair ve being globular and posterior pair sci filamentous; palpal tarsi having a solenidion extending partly over a pair of distal mucronate eupathids; transform series of pedal solenidia from claviform and baculiform to uniquely thin, but not tapering ( Figs. 135 A–D; Uusitalo 2010: figs. 147–149).

Figures

FIGURE 135. Details of Alycidae. A—prodorsum of Petralycus longicornis, B—prodorsum of P. brevicornis, C—palpal tarsi with solenidion ω extending partly over a pair of distal mucronate eupathids, Petralycus sp., D—strongly elongated chelicerae with 5 teeth similar in size on each fixed digit and 2 claws and a clawless empodium (arrow), Petralycus sp., E—cheliceral shafts abruptly tapering into chelae with 2 strong teeth on each fixed digit, Alycus sp., F—cheliceral shafts evenly tapering, elongated, Amphialycus sp. Abbreviations: Na—naso, Ch—chelicera, chb—cheliceral seta, P—palp, I—first leg.