INTERSEXUALITY AND GYNANDROMORPHISM IN GAGRELLID HARVESTMEN (PALPATORES, OPILIONES, ARACHNIDA)

Abstract

Two sexually anomalous individuals of the gagrellid harvestmen are described. Of these, one case found in Gagrellula montana SATO et SUZUKI exhibited perfect intersexuality; the reproductive system consisted of imperfectly developed ovary, a long duct which probably corresponds to sperm reservoir and propulsion organ, and genitalia showing a condition intermediate between those of both sexes. The other case in Melanopa grandis ROEWER was a partial gynandromorph with preponderence of female characters. The reproductive system was of the normal female except for somewhat malformed ovipositor.
The male and female genitalia of G. montana are first illustrated.