Soldanellonyx Walter, 1917

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 : 230

Soldanellonyx Walter, 1917

Type species. Soldanellonyx chappuisi Walter, 1917 .

Adults. In female GP and AP separated, in male both plates fused. Genital acetabula external, four to eleven pairs situated in posterior part of GP, lateral to GO. Females with three to seven pairs of pgs, each genital sclerite with zero to five sgs ( Bartsch 1975d: figs 2, 22). Ovipositor at rest short, when everted basally one pair of short genital spines, apically two pairs of short, smooth anterior and two pairs of short, slightly bifid posterior spines visible ( Bartsch 1975d: figs 16, 19). Males with about (10–)50–65 slender pgs and three pairs of sgs ( Bartsch 2012: fig. 3). AE in a few species ( S. monardi group) with epimeral pores in others ( S. chappuisi group) without.

Juveniles. With deutonymph, protonymph and larva. In both nymphs GP and AP separated ( Bartsch 1975d: figs 17, 18, 2011a: figs 6, 7). Deutonymphal GP with two to five pairs of external gac, two pairs of pgs and zero to two pairs of sgs. Protonymph with one to two pairs of external gac; pgs and sgs not developed. Larvae and protonymphs with epimeral pores.

Remarks. Soldanellonyx is a freshwater genus. Nine species are known ( Bartsch 2012), several of them are cosmopolitans. Most of the species are only known by their females.