Eremochelis flexaxus
Muma 1963
Therobates
flexacus Muma, 1963: 3-4, figs 7-9.
Eremochelis flexacus (Muma): Muma, 1970a: 34; Muma, 1976: 19; Muma,
1986: 12; Muma, 1987: 12; Vázquez Rojas, 1995: 31; Vázquez Rojas, 1996e: 76;
Brookhart and Brookhart, 2006: 317-318
.
HOLOTYPE:
United
States.
Nevada: 10 mi. N of Mercury, 1 mi. E of Mercury Highway, 2 March 1961
(5EL4C), 1 male.
Deposited in the American Museum of Natural History.
Original
description
Muma, 1963: 3-4,
figs 7-9 (as Therobates flexacus):
maleS:
Total length, 20.0 mm to 21.0 mm.
LENGTH WIDTH
Chelicerae 4.8-4.8 mm
2.0-2.0 mm.
Propeltidium 2.4-2.4 3.4-3.4
Palpi
18.0-18.0
1st legs
14.-15.0
4th legs 25.0-25.0
Holotype smaller specimen
Coloration and markings almost identical to those of T. arcus Muma
except the dusky area on the leg femora covers the apical two-thirds of
the segment.
Dentition of the same general type as
that of arcus except the fixed finger is slender, needle-like and
strongly S-shaped; the movable finger is provided with a strong
principal tooth, two tiny intermediate teeth and an aborted anterior
tooth but no mesal tooth; the fondal notch is shallow, bears no
denticules and is three times the width of the fixed finger at the base
(Figure 7).
The mesoventral groove of the fixed
finger is a narrow slot that extends nearly to the base of the finger
where it expands into a cup-like hollow. Flagellum complex with
basal, dorsal tubular bristles slightly S-shaped and plumose bristles
strongly S-shaped covering basal half of mesoventral groove.
Structure similar to that of T.
arcus, except that the propeltidium is wider than long by a ratio of 1
to 1.4, the palpal scopula is composed of about 50 papillae on the tibia
and 15 on the metatarsus (Figure 9), and there are only two slender
ctenidia on the first post-spiracular abdominal sternite (Figure 8).
