Eremochelis imperialis (Muma 1951)
Therobates imperialis Muma, 1951: 94-96, figs
174-177; Muma, 1966c: 201, 210.
Therobates attritus Muma, 1963: 4, figs 11-12 (synonymized by Muma,
Eremochelis attritus (Muma): Muma, 1976: 20.
Eremochelis imperialis (Muma): Muma, 1970a: 35; Muma, 1976: 20; Muma,
1982: plate 99; Muma, 1987: 20; Muma and Muma, 1988: 24; Vázquez Rojas,
1995: 31; Vázquez Rojas, 1996e: 76;Brookhart and Brookhart, 2006: 319.
Imperial County - Palo Verde, 17 August 1946 (P. Hurd), 1 male (holotype).
Deposited in the University of California.
Holotype of Therobates attritus (synonymized in Muma 1970a):
Nye County - 28 miles N. of Mercury, 3 miles W of Mercury Highway, 27 April 1961 (1BB1C), 1
female (holotype). Deposited in the American Museum of Natural
94-96, figs 174-177 (as Therobates imperialis):
Total length, 21.0 mm.
Chelicerae 4.7 mm
in alcohol white to light yellow with dusky purplish markings as
follows: eye tubercle dark; propeltidium lightly dusky along anterior
margin; tarsus and distal end of metatarsus of palpus dark. Malleoli
Cheliceral dentition as
shown in figures 174 to 176. Movable finger with principal tooth large,
two widely spaced intermediate teeth, of which the basal is larger, a
small anterior tooth, a distal tooth-like process that forms the
proximal rim of a dorsal cup-like groove at the distal end of the
finger, and a distinct mesal tooth. Fondal notch U-shaped, somewhat
narrower than the base of the fixed finger and bearing a distinct
denticule. Fixed finger broad basally and abruptly narrowed on the
distal half in lateral view; in dorsal view it is gradually tapered from
base to tip.
fixed finger an indistinct series of mesoventral creases and carinae
that extends nearly to the base of the finger. Flagellum complex
consisting of a dorsal row of simple tubular bristles, a mesal row of
lightly curved, weakly plumose bristles, and a basal group of simple
tubular bristles. Mesal setae of movable finger plumose on the basal
twothirds of the articulation area.
situated on anterior margin of propeltidium. Eyes separated by slightly
less than one diameter. Propeltidium wider than long by a ratio of 1 to
Metatarsus, tarsus, and tibia sparsely provided with large cylinder
bristles below and short, fine ones above as well as the usual long
slender spines. Metatarsus of palpus without scopula and about three
times as long as tarsus.
First post-spiracular abdominal sternite provided with four long,
slender ctenidia, of which the middle pair is shorter.