TY - JOUR JF - Acarologia T1 - Morphological variation in three populations of the Antarctic mite, Stereotydeus mollis W. and S. (Arthropoda: Acarina) VL - 13 IS - 1 SP - 88 EP - 97 PY - 1971 SN - 0044-586X SN - 2107-7207 PB - Les Amis d'Acarologia AU - Pittard, D.A. AU - Roberts, L.A. AU - Strandtmann, R.W. UR - https://www1.montpellier.inrae.fr/CBGP/acarologia/article.php?id=3388 DA - 1971-10-15 KW - Stereotydeus mollis KW - morphology KW - sexual dimorphism AB - Intraspecific variation of Stereotydeus mollis was evaluated for 18 characters from males and females of three apparently isolated populations. Sexual dimorphism was significant for length of the genital flap and length of four setae: extemal humeral, scapular, and anais I and II. Of these, the genital flap length provided the most effective criterion for separating the sexes. Analysis of variance indicated signifi.cant interpopulational variation. Results of T-tests and Chi-Square supported the view that the Cape Royds (Island) population was divergent from the two mainland populations studied. ER -