Lobohalacarus Viets, 1939

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 : 222

Lobohalacarus Viets, 1939

Type species. Walterella weberi Romijn & Viets, 1924 .

Female. All ventral plates fused, AP included. Area of GP with two to seven pairs of slender pgs, mostly four or five pairs of setae present. Female GO in posterior part of GP; each genital sclerite with zero to three sgs and zero to three external gac; no acetabula outside genital sclerites. Ovipositor short, at rest anteriad not extending beyond GO. Everted ovipositor showing a basal pair of small spines and five apical pairs of sclerotized genital spines ( Bartsch 1975d: fig. 51). AE with pair of epimeral pores.

Male. Not known.

Juveniles. With deutonymph, protonymph and larva. In both deutonymph and protonymph genital and anal plate fused to a genitoanal plate, in larvae genital plate lacking. Deutonymph with two pairs of gac; single pair of pgs in anterior part of GA; sgs lacking ( Bartsch 1975d: fig. 50). Protonymph with single pair of gac; without pgs and sgs. All juveniles with pair of epimeral pores.

Remarks. Two Lobohalacarus species are known, one with several subspecies ( Bartsch 2008a). Lobohalacarus is a cosmopolitan genus, it lives in freshwater, is regularly found in groundwater-fed habitats, but also in surface waters, even in coastal brackish water.