Description of the male and notes on the female of Argeiopsis inhacae (Crustacea: Isopoda: Bopyridae)

The male of A. inhacae is described for the first time from specimen. The diagnosis for the male is: head fused with first pereomere; first antenna of 3 segments, second antenna of 5 segments, basal segment with posteriorly directed projection; midventral tubercles on pereomeres; and pleon fused, segments laterally indicated, mid-ventral tubercles, pleopods, and uropods absent. The viability of the subfamily Argeiinae is questioned. Based on a review of the literature and examination of the holotype A. inhacae and specimens from the Philippine Islands, the range of A. inhacae is extended from Mozambique to the Philippine Islands.