Original
description:
Ammotrechula
borregoensis Muma, 1962: 41, figs 50-51:
"FEMALE
HOLOТYPE: Total length, 15.0 mm. Chelicerae
1.0 mm. wide and 3.1 mm. long. Propeltidium 2.4 mm. wide and 1.9 mm.
long. Color and markings in alcohol somewhat faded but apparently
as follows:
chelicerae light yellow; propeltidium раlе,
dusky, purplish brown except for
а narrow, light yellow, median
stripe, а small oval light area
оп each side of еуе
tubercle, а large, longitudinal, light,
diamond-shaped area, two irregular median light areas near the posterior
margin, and а
light yellow posterior marginal band; mesopeltidium, metapeltidium, and
abdominal tergites light except for narrow lateral and posterior dusky
margins; аll legs раlе
yellow except for first pair which
are раlе dusky purple
оп tarsi, metatarsi, tibiae, and
femora; palpi dusky purple оп
tarsi, metatarsi, tibiae, and apical ends of femora; еуе
tubercle dark, malleoli white.
Dentition of chelicerae typical of the Ammotrechinae (fig. 50). Peak of
dorsal carina occurring over first fondal tooth of ectal row. Palpi
clothed with long and short hairs, scattered cylinder bristles
оп
tarsi, metatarsi, and tibiae, and two rows of 10 or more short,
unpaired, cylindrical spines оп ventral surface of metatarsi and
tibiae (fig. 51). Chelicerae three times as 10ng as wide. Propeltidium
wider than long Ьу
а ratio of 1 to 1.2. Eyes
slightly less than опе diameter apart. Genital
plate typical of family, wider than 10ng Ьу а
ratio of 1 to 1.5."
Ammotrechula
dolabra Muma, 1963: 5, figs 18-19:
Diagnosis: This species is distinguished by the robust untoothed fixed
finger of the chelicerae and the lack of serially arranged spines on the
tibia and metatarsus of the palpus.
"Males: Total length 10.5 to 11.0 mm. Chelicerae 0.7 to 0.8 mm wide
and 2.3 to 2.7 mm long. Propeltidium 1.9 to 2.0 mm wide and 1.7 to
1.7 mm. long. Holotype larger measurement. Color light
yellow with purplish-brown markings as follows: chelicerae with one
dorsal and one ectal diffuse dusky stripe; propeltidium dark except for
a narrow median stripe and the bases of the spines; mesopeltidium,
metapeltidium and abdominal tergites pale on anterior third and dusky
for the remainder of their length, palpi and legs dusky except on
coxae, trochanters, and distal portion of tarsi; venter pale; eye
tubercle dark; malleoli white. Dentition as shown in Figures 18
and 19. Fixed finger and fond with only an indication of the
normal teeth. Dental group of movable finger occupies less than
one-third of the length of the finger, principal tooth slightly larger
than anterior tooth, Flagellum as on A. mulaiki Muma except the
lower curled margin is fringed, attachment disc over area normally
occupied by the first fondal tooth of the mesal row. Palpi with
usual clothing of long hairs, short hairs and cylinder bristles but no
distinguishable series of spines on femora, tibiae or metatarsi.
Chelicerae slightly more than 3 times as long as wide,
Propeltidium wider than long by a ratio of 1 to 1.1. Eyes
separated by less than a diameter."
Muma 1970a:
DIAGNOSIS: Females are disgtinguished by having the palpus and leg I
dusky, the other legs pale, and 2 rows of 10 or more unpaired short,
strong, cylindrical spinelike setae on the palpal metatarsi and tibiae.
Males are unknown. DISCUSSION: Males of this distinctive species
should be readily recognized by the coloration of the legs and
palpi.
