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Paruroctonus utahensis (Williams 1968)
Vejovis boreus (MIS): Bugbee, 1942: 320 (see
Sissom and Francke 1981: 94)..
Vejovis (Paruroctonus) aquilonalis (MIS): Gertsch &
Allred, 1965: 9 (part); Gertsch & Soleglad, 1966: 7, 42-44, fig. 20, 23
(part see Sissom and Francke 1981: 94).
Vejovis (Paruroctonus) utahensis Williams, 1968b:
313-315, fig. 1-2 tbl. 1.
Paruroctonus aquilonalis (MIS): Williams, 1972: 3 (part?); Soleglad,
1972a: 74 (part?); Soleglad, 1973b: 355 (part?); Stahnke, 1974a: 138
(part?); Muma, 1975a: 55; Rowland & Reddell, 1976: 1; Riddle et al.
1976: 295; Riddle and Pugach 1976: 248; Riddle 1978: 243; Beutelspacher,
2000: 65, 139, 146, 152, map 31.
Paruroctonus utahensis: Williams, 1972: 3; Soleglad, 1972a: 74;
Soleglad, 1973b: 355, tbl. 2; Johnson and Allred 1972: 157, 169-170,
fig. 24, tbl. 9; Stahnke 1974: 138; Allred & Gertsch, 1976: 95, 99;
Riddle 1979: 125, 1981:233; Sissom & Francke,
1981: 94, 95, 107, fig. 1-6, 29, 30, 35; Francke & Soleglad, 1981: 251,
figs. 50-52; Polis et al. 1981: 11, 16;
Bradley & Brody, 1984: 437-440; Sissom, 1997: 13; Kovarík, 1998: 144;
Sissom & Jackman, 1997: 151; Sissom, 2000:510.
Vaejovis aquilonalis (MIS): Díaz Najera, 1975: 6, 19.
Paruroctonus (Paruroctonus) utahensis: Haradon, 1984a:
211-212, fig. 5-8, 10, 19-20, 36; Haradon, 1985: 24.
type(s):
Vejovis (Paruroctonus) utahensis Williams:
Holotype male (adult) from U.S.A., Utah, San Juan County, 2 miles NE Bluff,
14 July 1967 (S. C. Williams, M. A. Cazier, J. Davidson). Depository: CAS,
Type No. 10175.
subsequent accounts:
Haradon 1984a Diagnosis.-A species in the baergi group
of nominate subgenus Paruroctonus differentiated by: telotarsus III
with four long retrosuperior setae, and two retromedial setae (subdistal
seta may be smaller than distal) (Fig. I0); basitarsus III with seven to
(usually eight) superior setae in essentially single file, mrs seta slightly
freer than and about 1/2 as long as superior setae (Figs. 7-8); humeral
macrosetae include three inframedials on proximal 3/5 of internal surface
(distal may be smaller than others) (similar (Fig. 15), and two or three
(usually two) medials on distal 3/5 of external surface (similar to
Fig. 14); pedipalp internal macrosetae include four on palm, two on movable
finger, none on fixed finger (Fig. 36); pedipaip fingers in adult male
weakly scalloped, closed fingers form narrow proximal gap (Fig. 19);
pectines in adult female barely extend trochamer IV, carapace length/pectinal
anterior margin length ratio greater than 1.5. Intragroup comparisons are
presented in Table 4. The above diagnosis is based upon specimens (CAS, AMNH)
from Utah (paratopotypes), New México, Texas and Chihuahua, representing
previously reported localities.
distribution: NORTH
AMERICA. México(Chihuahua), USA (Arizona, New México,
Texas, Utah): Colorado River and Rio Grande drainages in southern Utah,
northern Arizona, New México, western Texas, and northern Chihuahua.
View Map
published records:
Paratypes: 12M,
19F (CAS; including F allotype “CAS, Type No. 10175”), same locality as
holotype; 46M, 20F from 1/2 mi W Bluff (CAS); 9M, 8F from Bluff city limits,
in flood plain of San Juan River, San Juan County, Utah, USA.
notes: Beutelspacher (2000) used the name
Paruroctonus aquilonalis, although it has long been placed in synonymy (Sissom
& Francke, 1981). He also erroneously listed the species as part of the
fauna of Sonora (p. 146), although his only record is the specimen from the
Samalayuca Dunes in Chihuahua reported by Gertsch & Soleglad (1966).
Sissom and Hendrickson 2005:39,40 - Key to
the Vaejovid Scorpion Species of Northeastern México - Dorsolateral carinae of metasoma more or less evenly denticulate
throughout (i.e., without an enlarged terminal denticle); legs I–III with
distinct retrolateral setal combs; Anterior margin of carapace almost
straight; fixed cheliceral finger with ventral keel extending from tip to
bicusp area; Pectinal tooth counts above 24 in males and 17 in females;
basitarsus of leg II without mrs seta (Haradon 1985; Sissom & Henson
1998); pedipalp chela fixed finger with more than 30 primary denticles
(excluding those of proximal row); Pedipalp femur with two or three external
medial setae; with 0, 1, 1, 2 pairs of setae on dorsolateral carinae of
metasoma I–IV; with 0, 1, 1, 2 pairs of setae on the lateral supramedians;
with 1 pair of setae on lateral inframedians of metasomal segment I; with 2,
3, 3, 4 pairs of setae on the ventrolateral carinae of I–IV. Samalayuca
Dunes, Chihuahua......... Paruroctonus utahensis
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