Porolohmannella Viets, 1933

Bartsch, Ilse, 2015, The genital area of Halacaridae (Acari), life stages and development of morphological characters and implication on the classification, Zootaxa 3919 (2), pp. 201-259 : 226-227

Porolohmannella Viets, 1933

Type species. Leptognathus violaceus Kramer, 1879 .

Female. Genital and anal plate fused. Female GO in ventral position. Genital plate with three pairs of pgs. Two pairs of gac external, on genital sclerites, one rather inconspicuous pair inside genital cavity ( Bartsch 2007a: fig.

27); sgs lacking. Ovipositor short; with one pair of setiform, slightly spinose basal genital spines and five pairs of short apical spines; of the latter three posterior pairs tri- or quadrifid stumps, two anterior pairs slightly more slender and longer than posterior spines ( Bartsch 2007a: fig. 28). AE without epimeral pores.

Male. Not known.

Juveniles. With one larval and two nymphal stages. Deuto- and protonymph with genital and anal plate fused. Deutonymph with two pairs of external gac, two pairs of pgs, but without sgs ( Bartsch 2007a: fig. 18). Protonymph with single pair of gac; pgs and sgs lacking ( Bartsch 2007a: fig. 10). Protonymph and larva with epimeral pores.

Remarks. Freshwater genus. At present a single species is known which is wide-spread on the northern hemisphere, in lenitic surface waters ( Bartsch 2007a).