The genital area of Halacaridae (Acari), life stages and development of morphological characters and implication on the classification Author Bartsch, Ilse text Zootaxa 2015 3919 2 201 259 journal article 10.11646/zootaxa.3919.2.1 8a0f71e3-5416-41c5-8e7d-b4cc574b7340 1175-5326 245246 8CB77F9E-A35E-43E2-91F7-7822AE421B33 Hamohalacarus Walter, 1931 Type species. Hamohalacarus subterraneus Walter, 1931 . Female. GP with three to four pairs of pgs anterolateral to GO and three pairs of external gac in posterolateral parts of GP ( Walter 1931: fig. 2 ). GO large, genital sclerites with one pair of sgs. AE with pair of epimeral pores. Male and juveniles. Not known. Remarks. Inhabitant of freshwater. The single record is from a cave in Indiana, US ( Walter 1931 ).