RE-DESCRIPTION OF TOGWOTEEUS BICEPS (ARACHNIDA, OPILIONES, SCLEROSOMATIDAE) WITH NOTES ON ITS MORPHOLOGY, KARYOLOGY AND PHENOLOGY

The harvestman genus Togwoteeus Roewer 1952 is monotypic. Its only spe cies, T. biceps (Thorell 1877), is known from throughout western Canad a and USA and is newly recorded from California, Nebraska, Nevada, Ore gon, South Dakota, and Utah. This species occurs below 500 m and at th e highest elevation (4100 m) of any recorded harvestman in North Ameri ca. It ranges from about 33-54 degrees N and exhibits considerable var iation in its morphological measurements. Twenty-seven such measuremen ts are summarized for 80 males and 74 females. Ultrastructural details of the integument, appendages and genital organs are presented. The k aryotype is 2n = 22 for both sexes. All chromosomes are metacentric an d obvious sex chromosomes were not detected. Immature T. biceps overwi nter and reach adulthood in late spring or early summer. Adults die by late fall.