REVSYS: SYSTEMATICS OF THE
SCORPION FAMILY VAEJOVIDAE
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FAMILY VAEJOVIDAEGenus ParavaejovisGenus Paruroctonus

boreus infragroup
   boreus
microgroup

     Paruroctonus arnaudi
     Paruroctonus bantai
          P. bantai bantai
          P. bantai saratoga
     Paruroctonus boreus
     Paruroctonus maritimus
     Paruroctonus silvestrii
     Paruroctonus variabilis
   becki microgroup
     Paruroctonus becki
   xanthus microgroup
     Paruroctonus xanthus
   baergi microgroup
     Paruroctonus arenicola
          P. arenicola arenicola
          P. arenicola nudipes
     Paruroctonus baergi
     Paruroctonus boquillas
     Paruroctonus marksi
     Paruroctonus utahensis
gracilior
infragroup
     Paruroctonus gracilior
stahnkei
infragroup
   stahnkei
microgroup

     Paruroctonus stahnkei
   shulovi microgroup
     Paruroctonus shulovi
          P. shulovi shulovi
          P. shuvoli nevadae
     Paruroctonus simulatus
   borregoensis microgroup
     Paruroctonus ammonastes
     Paruroctonus bajae
     Paruroctonus borregoensis
          P. borregoensis borregoensis
          P. borregoensis actites
     Paruroctonus hirsutipes
     Paruroctonus luteolus
     Paruroctonus nitidus
     Paruroctonus pseudopumilis
     Paruroctonus surensis
     Paruroctonus ventosus
   williamsi microgroup

    
Paruroctonus coahuilanus
     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?

gracilior infragroup

Diagnosis: Haradon 1985 Diagnosis .—An infragroup of nominate subgenus Paruroctonus differentiated by : (1) cheliceral fixed digit with inferior carina confined distally, does not extend proximally to level of bicusp (see Gertsch and Soleglad 1966: fig. 33); (2) cheliceral movable digit with superior distal tine essentially triangular, inferior distal tine length/superior distal tine length ratio 3.1-3.2 (see Gertsch and Soleglad 1966 :fig. 35); (3) carapace length/cheliceral fixed digit length ratio 3.3-4.1 (rarely 4.2); (4) basitarsus III with five superior setae, including three distal plus two proximal (3+2 ; rarely 4+2, and only among arenicolous specimens); (5) pectinal teeth in males 23-32 (more than 95% with 24-32), females 15-21 (more than 95% with 18-21) ; (6) pedipalp movable finger length/palm length ratio in adult males and females 1.1-1.2 ; (7) carapace length/pectine length ratio in adult males 0.9-1.0, adult females 1.2-1.3 ; (8) humerus with three (occasionally four) inframedial macrosetae on proximal 3/5 of internal surface ; (9) pedipalp primary denticles, excluding proximal row, total 42-61 on fixed finger, 54-75 on movable finger ; (10) adult carapace length in males 4 .1-6.6 mm, females 4 .8-7.2 mm.
Key -
Cheliceral fixed digit inferior carina does not extend proximally to level of bicusp; carapace length/cheliceral fixed digit length ratio 4.1 or less………....……….gracilior infragroup, P. gracilior

Distribution: Haradon 1985 Southeastern Arizona, eastward to Big Bend region of Texas, southward to Aguascalientes in México.. 

Included taxa:  P. gracilior (Hoffmann 1931).

Key: N/A. Monobasic.

Notes: Haradon 1985 Comparisons: the boreus infragroup (below) differs in characters 1-4; the stahnkei infragroup (below) differs primarily in characters 1-4, but also significantly in 5-10.

 


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