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FAMILY VAEJOVIDAEGenus ParavaejovisGenus Paruroctonus

boreus infragroup

     Paruroctonus arnaudi
     Paruroctonus bantai
          Paruroctonus bantai bantai
          Paruroctonus bantai saratoga
     Paruroctonus boreus
     Paruroctonus maritimus
     Paruroctonus silvestrii
     Paruroctonus variabilis
   becki microgroup
     Paruroctonus becki
   xanthus microgroup
     Paruroctonus xanthus
   baergi microgroup
     Paruroctonus arenicola
          Paruroctonus arenicola arenicola
          Paruroctonus arenicola nudipes
     Paruroctonus baergi
     Paruroctonus boquillas
     Paruroctonus marksi
     Paruroctonus utahensis
gracilior infragroup
     Paruroctonus gracilior
stahnkei infragroup
   stahnkei microgroup
     Paruroctonus stahnkei
   shulovi microgroup
     Paruroctonus shulovi
          Paruroctonus shulovi shulovi
          Paruroctonus shuvoli nevadae
     Paruroctonus simulatus
   borregoensis microgroup
     Paruroctonus ammonastes
     Paruroctonus bajae
     Paruroctonus borregoensis
          Paruroctonus b. borregoensis
          Paruroctonus b. actites
     Paruroctonus hirsutipes
     Paruroctonus luteolus
     Paruroctonus nitidus
     Paruroctonus pseudopumilis
     Paruroctonus surensis
     Paruroctonus ventosus
   williamsi microgroup
     Paruroctonus pecos
     Paruroctonus williamsi

Genus PseudouroctonusGenus Serradigitus
Genus Smeringerus
Genus Syntropis
Genus Uroctonites
Genus Uroctonus
Genus Vaejovis
Genus Vejovoidus

Catalog of the VaejovidaeVaejovid  Bibliography

Why study vaejovids?

Paruroctonus baergi (Williams & Hadley 1967)

Vejovis (Paruroctonus) baergi Williams & Hadley 1967: 104, 106, 108-112, 114, figs 2-4, tbl 1; Hadley and Williams 1968: 727.
Paruroctonus baergi
: Williams 1972: 3; Soleglad 1972: 74; Soleglad 1973b: 355, tbl. 2; ►Haradon 1984a: 210, figs 1-4, 9, 13-14, 17-18, 35, 39; ►Haradon 1985: 24; Kovarík 1998: 143; Sissom & Henson 1998: 241, 246; ; Beutelspacher 2000: 66, 146, 152, map 33; Sissom 2000:509.
Vaejovis baergi
: Díaz Najera 1975: 6, 31.

type(s) :  Vejovis (Paruroctonus) baergi Williams & Hadley - Holotype male (adult) from México, Sonora, Cholla Bay, near Puerto Peñasco, 15 October 1966 (S. C. Williams). Depository: California Academy of Sciences (CAS), Type No. 9479.

original description:

subsequent accounts: Haradon (1984a, 1985) referred this species to the baergi microgroup in the boreus infragroup of the genus Paruroctonus (then recognized as the nominate subgenus  of a more  broadly circumscribed genus Paruroctonus that  included what is now recognized as the genus Smeringerus Haradon).

Haradon (1984a,) offered the following diagnosis:

"A species in the baergi group of nominate subgenus Paruroctonus differentiated by: telotarsus III with four long retrosuperior setae, and one retromedial seta (subdistal seta, if present, inconspicuous)( Fig. 9); basitarsus III with eight to 11 (usually nine or 10) superior setae in essentially single file, mrs seta fine and less than 1/2 as long as superior setae (Figs. 5-6); humeral macrosetae include two inframedials on proximal 3/5 of internal surface (Fig. 13), and two medials on distal 3/5 of external surface (Fig. 14); pedipalpal internal macrosetae include two (rarely three) on palm, one on movable finger, and none on fixed finger (Fig. 35). Intragroup comparisons are presented in Table 4."

distribution:  NORTH AMERICA. México (Sonora), UNITED STATES (Arizona, California): Extreme southern Mojave Desert, southward along the Colorado River and Gila River drainages to Cholla Bay, Sonora, México. View Map

published records:  Paratypes: México: Sonora: Cholla Bay, near Puerto Peñasco, 15 October 1966 (S. C. Williams), 16♂, 13♀ (including allotype ♀ “CAS, Type No. 9479”), same locality as holotype.  Additional records: UNITED STATES: CALIFORNIA:  San Bernardino County - Twentynine Palms, 3 September 1972 (R. M. Haradon, J. L. Marks), 13 males, 1 female (CAS)1, 20 mi. E Twentynine Palms, 6 May 1972 (R. M. Haradon, J. L. Marks), 1 female (CAS)1, 25 mi. E Twentynine Palms, 6 May 1972 (R. Haradon, J. L. Marks), 1 male, 1 female (CAS)1, 27 mi. E Twentynine Palms, 2 September 1972 (R. M. Haradon, J. L. Marks), 2 males, 4 females (CAS)1; Riverside County - 26 mi. N Desert Center, 6 May 1972 (R. M. Haradon, J. L. Marks), 5 males, 3 females (CAS)1, 25 mi. N Desert Center, April 1973 (R. M. Haradon, J. L. Marks), 11 males, 8 females (CAS)1, 8.2 mi. N. Desert Center, 19 May 1973 (R. Haradon, J. L. Marks), 5 males, 1 female (CAS)1; lmperial County - Paloverde, 16 March 1976 (M. A. Cazier, O. F. Francke), 2 females (OFF)1, 1 mi. W Paloverde, 28 October 1967 (M. A. Cazier et al.), 8 males, 4 females (CAS)1: ARIZONA Yuma County - 6 mi. E Parker, 5 April 1969 (M. A. Cazier), 10 males, 20 females (OFF), 6 mi. E Parker, 14 March 1976 (M. A. Cazier, O. F. Francke), 11 males, 29 females (OFF)1, 3 mi. N Dateland, 26 April 1968 (M. A. Cazier et al.), 2 males, 4 females (OFF)1, 6 mi. E Tacna, Mohawk Sand Dunes, 24 September 1970 (W. Fox, J. Bigelow), 30 males (OFF)1, 3 mi. W Wellton, 27 April 1968 (M. A. Cazier et al.), 1 male, 1 female (OFF)1.
Haradon 1984a

notes:  Per Haradon (1984a), the pectinal tooth count range, which he reports as relatively narrow among most other congeneric species, exhibits in P. baergi a striking clinal increase from the type locality in northwestern Sonora northward to near Cadiz Dry Lake (San Bernardino County) in California. Haradon (ibid.) therefore expanded the original concept of this species, to include pectinal tooth counts up to 22 (not just 13-16) in females, and up to 29 (not just 20-24) in males. Haradon's diagnosis is based upon a paratopotypic sample (CAS), as well as specimens from the localities listed in Haradon (1984a).



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