Eremobatidae Kraepelin 1899
of the family Eremobatidae.
sp. (palpisetulosus group), female, from California (photo by Warren E.
Bottom: Eremochelis bilobatus (Muma),
male, from Arizona (photo by Warren E. Savary).
Members of the family
Eremobatidae are known from North America and Central America. The 187
described species are distributed among seven genera in two subfamilies. The
genera Eremobates (88 species), Eremocosta (13 species),
Eremorhax (10 species), Eremothera (2 species) and Horribates
(3 species) currently comprise the
Eremobatinae, a subfamily
characterized by the presence of a single, flattened claw on the tarsus of the
first leg. The subfamily
Therobatinae, characterized by the presence of two claws on the tarsus of
the first leg, includes the genera Chanbria (4 species), Eremochelis
(36 species), and Hemerotrecha (31 species).
In solifugids of the
family Eremobatidae, the anterior margin of the propeltidium (the part of the
head that bears the two eyes) forms a straight line perpendicular to the
longitudinal axis of the body (see photograph below). The mesal surface of the
(typically) needle-like fixed cheliceral finger of the male may bear a distinct
groove or cup and a series of modified setae (again, see photograph below), but
lacks a husk-like or whip-like flagellum. In members of the family
Ammotrechidae (the only
other family of solifugids occurring within the range of the eremobatids), the
anterior margin of the propeltidium is recurved, sloping backwards evenly from
the eye tubercle, and a translucent husk-like flagellum is present on the mesal
face of the fixed cheliceral finger in males (see
Head of Eremochelis bilobatus (Muma), male,
from Arizona (photo by Warren E. Savary).
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