The present gynandromorphic spider was collected by one of the authors, T. Arita, at Inoko, Tottori City, on May 12, 1961.
Seen from above the coloration of the left half of the carapace and abdomen is that of a female whereas the right half is distinctly that of a male. The left chelicera and palp are typical for a female, while the right ones are like those in a male. The left palp is slender, and the tarsus of the right palp swollen as in a male, but the structure of its genital bulb is not fully developed. The left legs are slightly shorter than the right ones, ix the left are feminine and the right masculine. The spination on the left legs is as in a female, and that on the right as in a male. The abdomen is strongly asymmetrical, with the left side larger than the right. The epigynum is like that of a normal female, although being more or less different in shape and the left(seen from below)chitin cap is wanting. Spinnerets are normal as in a female. As a whole, this individual seems to be an intersexual mosaic gynandromorph with a preponderance of femaleness.
