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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 arnaudi Williams 1972

Paruroctonus arnaudi Williams, 1972: 4-5, 8, fig. 1; Soleglad, 1973b: 355; Williams, 1980: 32, 34, fig. 38, 39; ►Haradon, 1985: 24, 40; Kovarík, 1998: 143; Beutelspacher, 2000: 66, 136, 152, map 32; Sissom, 2000:506; Soleglad & Fet, 2003b: 6; Soleglad & Fet, 2003a: 8.

type(s) :  Paruroctonus arnaudi Williams, 1972, holotype (male), CAS (Type No. 11334), Socorro Sand Dunes, Baja California Norte, Mexico, 12-VII-1969 (S. C. Williams, V. F. Lee).

Original Description: .

Subsequent Accounts:  Haradon (1985) referred this species to the boreus 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). In a partial key to the members of the subgenus, he ascribed the following attributes to this species:

"Cheliceral fixed digit inferior carina extends proximally at least to level of bicusp; carapace length/cheliceral fixed digit length ratio 4 .2 or more; Pectinal teeth 24/24 or more in males and 17/18 or more in females and 37 or more primary denticles (less proximal row) on pedipalp movable fingers, or if fewer pectinal teeth then either (1) dorsal metasomal setae I-IV 0,0,0,1, or (2) no mrs seta on basitarsus II boreus infragroup; Basitarsus II with mrs seta; Carapace length/cheliceral fixed digit length ratio 7.0 or more boreus microgroup; Metasomal setae: ventrals I-IV 3,4,4,5 ; ventrolaterals 4 on IV and 7 on V; Pedipalp fingers in adult male deeply scalloped proximally, in adult female weakly scalloped."

Williams (1980):

"Diagnosis. - Basic color of cuticle goldenyellow with distinctive dusky to dark marbling on carapace and mesosomal dorsum; ventral keels of metasoma usually with dusky outline; pedipalp finger same color as palm; pedipalp palms swollen, strongly granular keels; pedipalp fingers moderately scalloped, male with distinctive open proximal space when fingers closed; pectine teeth 21-25 in females. 26-31 in males; space between ventromedian keels of metasoma without abundant, stout, reddish setae, segment III with fewer than 10 such setae; pedipalps with fixed finger equal to or shorter than palm in length.
Similar to P. grandis and P. silvestrii. Distinguished from P. grandis as follows: metasomal segments not as elongate; with dusky outlining of ventral metasomal keels; pedipalp fingers of male more deeply scalloped and with larger open proximal space when fingers closed; space between ventromedian metasomal keels not hirsute. Distinguished from P. silvestrii as follows: males with distinctive proximal space when pedipalp fingers closed; pedipalp palm ventrally not conspicuously granular; not as darkly marked."

distribution: NORTH AMERICA. México (northwestern coast of Baja California Norte).
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published records:  Paratypes - 61 specimen (41M, 20F, including an allotype (CAS, Type No. 11334), Socorro Sand Dunes, Baja California Norte, Mexico, 12-VII-1969 (S. C. Williams, V. F. Lee). Baja California Norte, Mexico: 19 km N Rancho El Topo, I6-VII-I969 (Williams, Lee): 2.6 km W Colonia Guerrero, 16-VII-1962 (Parrish): Punta Baja. 2-IX-1963 (Schwenkmeyer).



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