Pseudouroctonus m. castaneus
Pseudouroctonus m. thompsoni
Pseudouroctonus chicano (Gertsch & Soleglad 1972)
Gertsch & Soleglad, 1972: 568, 577; Soleglad, 1973b: 353; Díaz Najera,
1975: 6, 19.
Vejovis chicano: Stahnke, 1974: 130, 136.
Vaejovis chicano: Williams & Savary, 1991: 284; Beutelspacher, 2000:
79, 139, 152, map 50.
Pseudouroctonus chicano: Stockwell, 1992: 410; Kovarík, 1998: 144;
Gertsch & Soleglad 1972 - Female
holotype from 1 mi. E La Sauceda, Chihuahua, Mexico, 7000 ft., July 21, 1947
(W. J. Gertsch), in collection of the American Museum of Natural History.
Gertsch & Soleglad,
"DIAGNOSIS: Close relative of
apacheanus, distinguished by following features: median eye tubercle
placed well in front of middle of carapace but closer to center, 36 in
chicano, 32 in apacheanus; carapace with distinct dark mottling; chela
heavier, with shorter fingers, chela length over fixed finger length
2.62 in chicano, 2.35 in apacheanus.
COLORATION: Base color orange-tan with darker mottling on carapace and
terga. Eye tubercles black. Keels on cauda and pedipalpi and aculeus
dark brown. Walking legs yellow with dusky markings on all segments
STRUCTURE: Similar to that of apacheanus except as noted. Descriptive
data and measurements as given in table 3.
Carapace: Surface covered with small granules, most noticeable on
pigmented areas; frontal margin with six suberect setae. Frontal
emargination deep, broadly rounded. Ocular tubercle well in advance of
middle of carapace. Median eyes small, 0.17 mm., separated by their
diameter. Lateral eyes three; posterior eye small, set above principal
Preabdomen: Posterior half of first six tergites finely granulated;
tergite VII with both pairs of keels well developed and serrate. First
four sternites smooth; fifth sternite rough with fine granulation; keels
Cauda: Dorsal and dorsal lateral keels on segments I-IV serrate;
inferior lateral keels of these segments serrate, and inferior median
keels irregularly serrate. Lateral keels present on segments as follows:
irregular serrate row on I, on posterior half of II, on posterior third
of III, and essentially obsolete on IV except for scattered granules in
intercarinal spaces. Keels on segment V as follows: dorsal keel
crenulate; lateral keel irregular on anterior three-fourths; inferior
lateral and single median keel serrate; intercarinal spaces essentially
smooth, with some scattered granulation.
Telson: Sting sharply curved, delimited from vesicle by slight basal
swelling; vesicle with about six pairs ofsetae on ventral surface.
Pectines: Like those of apacheanus; middle lamellae, five; pectinal
Chelicerae: With normal dentition; lower margin of movable finger smooth
except for line of serrulae.
Pedipalps: All keels on femur and tibia granulated. Femur two and
one-half times as long as wide; tibia twice as long. Superior keel on
chela smooth anteriorly, becoming rough posteriorly; outer accessory
keel irregular, weak anteriorly; outer keel with rounded granules
posteriorly; inner ventral keel essentially obsolete; inferior keel with
rounded, irregular granules; inner secondary keel with large granules
posteriorly; inner accessory keel smooth anteriorly but granulated
posteriorly. Supernumerary teeth on fixed finger, six, on movable
finger, seven. Trichobothria ib and it positioned directly above
Walking legs: Single ventral row of spinules on venter of tarsus small
and delicate, flanked by three pairs of delicate setae."
Gertsch and Soleglad (1972) described
the species name as "a vernacular name of the Southwest for various
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