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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 at
bottom of page),
and no husk-like flagellum is found on the chelicera of males. Instead,
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 at
bottom of page). In members of the family Ammotrechidae (the only other
family of solifugids found in California), 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 Ammotrechidae).
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