Abstract
The present gynandromorphic spider was collected by the author at the Ashiu Experimental Forest of Kyoto University, Miyama-chô, Kitakuwata-gun, Kyoto, on June 15, 1969.
In dosal view, the coloration of the carapace and the left half of the abdomen is similar to that of a normal male, but the right half of the clypeus is darker than the left half. The tibiae of both palpi are slightly differentiated. The tarsus of the left palp is merely swollen, and the structure of its genital bulb is not fully developed. The right palp is simple and has a claw at the apex, The spination of all legs is as in a male, and the retrolateral sides of femora of leg I and leg II are dark brown as in a male. The abdomen is asymmetrycal, curved to the left, and the right side has five small spots in a row, while those spots on the left side are connected with each other as a long fleck. The left side of the epigynum is of normal female structure being somewhat incomplete ; the right side does not show such a structure.
Considering all facts, this individual seems to show an intersexual mosaic gynandromorph with a preponderence of male elements.
