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FAMILY VAEJOVIDAEGenus ParavaejovisGenus ParuroctonusGenus PseudouroctonusGenus SerradigitusGenus SmeringerusGenus SyntropisGenus UroctonitesGenus UroctonusGenus Vaejovis

      eusthenura group
           Vaejovis bilineatus
           Vaejovis coahuilae
        Vaejovis confusus
       Vaejovis diazi diazi
      Vaejovis diazi transmontanus
       Vaejovis eusthenura
       Vaejovis flavus
      Vaejovis galbus
      Vaejovis glabrimanus
      Vaejovis globosus
       Vaejovis gravicaudus
        Vaejovis hoffmanni hoffmanni
       Vaejovis hoffmanni fuscus
      Vaejovis punctatus punctatus
       Vaejovis punctatus spadix
      Vaejovis punctatus variegatus
       Vaejovis puritanus
      Vaejovis spinigerus
       Vaejovis viscainensis
        Vaejovis vittatus
        Vaejovis waeringi
       Vaejovis waueri
      intrepidus group
        Vaejovis intrepidus intrepidus
        Vaejovis intrepidus atrox
        Vaejovis intrepidus cristimanus
      Vaejovis occidentalis
      Vaejovis subcristatus
      mexicanus group
        Vaejovis carolinianus
        Vaejovis cashi
        Vaejovis chamelaensis
      Vaejovis chiapas
       Vaejovis chisos
        Vaejovis deboersi
        Vaejovis dugesi
        Vaejovis feti
        Vaejovis franckei
       Vaejovis granulatus
      Vaejovis jonesi
       Vaejovis lapidicola
      Vaejovis maculosus
       Vaejovis mexicanus mexicanus
      Vaejovis mexicanus smithi
      Vaejovis monticola
      Vaejovis nigrofemoratus
        Vaejovis pattersoni
       Vaejovis paysonensis
      Vaejovis pusillus
       Vaevovis rosssmanni
      Vaejovis setosus
      Vaejovis sprousei
      Vaejovis tesselatus
      Vaejovis vaquero
        Vaejovis vorhiesi
      nitidulus group    
      Vaejovis curvidigitus
      Vaejovis davidi
      Vaejovis decipiens
      Vaejovis gracilis
      Vaejovis intermedius
      Vaejovis janssi
      Vaejovis kochi
      Vaejovis mauryi
      Vaejovis minckleyi
      Vaejovis mitchelli
      Vaejovis nigrescens
      Vaejovis nitidulus
      Vaejovis norteno
      Vaejovis peninsularis
      Vaejovis platnicki
      Vaejovis pococki
      Vaejovis rubrimanus
      Vaejovis solegladi
      punctipalpi group
      Vaejovis bruneus bruneus
      Vaejovis bruneus loretoensis
      Vaejovis bruneus villosus
      Vaejovis cazieri
      Vaejovis crassimanus
      Vaejovis hirsuticauda
      Vaejovis insularis
      Vaejovis magdalensis
      Vaejovis punctipalpi punctipalpi
      Vaejovis punctipalpi barbatus
      Vaejovis punctipalpi cerralvensis
      Vaejovis russelli
      Vaejovis sonorae
      incertae sedis
      Vaejovis acapulco
      Vaejovis cisnerosi
           Vaejovis kuarapu
      Vaejovis mumai
      Vaejovis nayarit
      Vaejovis pequeno
      Vaejovis spicatus
      Vaejovis zihuatanejensis
          "Vaejovis" flavescens

Genus Vejovoidus

Catalog of the VaejovidaeVaejovid  Bibliography

Why Study the Vaejovidae?

Vaejovis gravicaudus Williams 1970

Vejovis gravicaudus Williams, 1970b: 325-331, fig. 29-30; Stahnke, 1974a: 135.
Vaejovis gravicaudus: Díaz Najera, 1975: 6, 14; Williams, 1980: 55, 61-62, fig. 65, 66; Sissom, 1991a: 215-217; Kovarík, 1998: 147; Beutelspacher, 2000: 88, 136, 137, 153, map 61 (part);Sissom, 2000:533; Hendrixson 2001: 49; Soleglad & Fet, 2003a: 8, 161, figs. 6, 69.
Vejovis spinigerus (MIS: part): ?Kraepelin, 1901: 274; Díaz Najera, 1964: 21.

HOLOTYPE:  Male (CAS, Type No. 10418), 34.4 km W Los Aripes, Baja California Sur, México, 25-VII-1968, S. C. Williams, J. Bigelow, M. M. Bentzien.  .

Original description:
Vejovis gravicaudus Williams, 1970b: 325-331, fig. 29-30

Subsequent Accounts:
Stahnke 1974a (Vejovis gravicaudus):
Williams 1980 (Vaejovis gravicaudus):

"Diagnosis. Adults to 65 mm long. Base color of body brownish yellow with underlying dusky markings; two pairs of more or less obsolete dark longitudinal stripes on mesosomal dorsum, two pairs more or less distinct stripes underlying ventromedian and ventrolateral keels of metasoma; pedipalp fingers similar to palm in color; pedipalp with palm slightly swollen, palm keels obsolete, palm smooth and agranular; ratio of movable-finger length to carapace length 0.8-0.9; ratio of chela length to palm width 3.1-4.3; ratio of movable-finger length to palm width 2. 1-2.6; supernumerary granules 6 on fixed finger, 7 on movable finger, movable finger with primary row of denticles subdivided into six subrows by five slightly enlarged denticles, movable finger with most proximal supernumerary granule not paired with adjacent enlarged denticle in primary row; pedipalp fixed finger with primary row of denticles separated into 6 subrows of denticles by five slightly enlarged denticles; fixed finger with proximal supernumerary granule closely paired with adjacent enlarged denticle in primary row; pectine teeth 19-23 in females, 24-27 in males. Metasoma with ventrolateral keels greatly reduced and smooth, ventromedial keels obsolete, segment IV with depth distinctly greater than depth of segment I.
Similar to Vaejovis spinigerus but differs as follows: mature female with vesicle distinctly more hirsute, mature male with vesicle distinctly less hirsute; larger proximal space between fingers when chela closed; dorsal stripes on mesosoma not distinct (even in young instars)."

Distribution: NORTH AMERICA. México (Baja California Norte, Baja California Sur -  El Marmol south to La Paz and following islands: Tiburon, San Marcos, Carmen, San Jose, and San Francisco).

Published Records: Paratypes: 13M, 15F (CAS; including F allotype), same locality as holotype; 170 specimens (CAS), numerous localities in Baja California Sur, México. Baja California Norte, Mexico: 37 km S El Marmol, Rancho San Luis, 12-1-1965 (Roth. AMNH). Baja California Sur: 26 km S Santa Rosalia. 19-IV-I969 (Williams); Isla San Marcos, SW end, 19-III-1971 (Lee); San Ignacio, 24-VI-1968 (Williams, Cazier); 29 km S Mulege, 20-IV-1969 (Williams); Bahia Concepcion, El Coyote, 17-11-1966 (Roth, AMNH); 1.6 km SW Rancho Canipole. 15-V-1969 (Williams); 6.4 km W La Purisima, l-VII-1968 (Williams. Cazier): 39 km NE San Jose de Comondu, 15-V-1969 (Williams); 8.0 km S Loreto, 16-V-1969 (Williams): 0.8 km W Rancho Las Parras, 26-V-1970 (Lee, Williams); Isla Carmen, Puerto Balandra, 24-V-1970 (Williams. Lee): Puerto Nopalo, 12-IV-1962 (Belvedere Expedition): Rancho Chenque, N Puerto Escondido, 7-IV-1962 (Belvedere Expedition); 6.4 km S Mision San Javier, 18-V-1969 (Williams); Isla San Jose, SW side, 19-V-1970 (Williams, Lee); Isla San Francisco, S end, 10-IV-1974 (Banta), Sonora: Agua Dulce Bay, Tiburon Island, 18-111-1962 (Wiggins).

Notes: Beutelspacher's (2000) listing of V. gravicaudus from Isla Tiburon, Sonora is incorrect. The specimens are referable to V. spinigerus (Wood)(Sissom 1992, pers. obs.).
Williams (1980): "
Commonly encountered in rocky habitats. This species was most abundant in samples taken in the bottoms of canyons and washes where outcrops of volcanic rock and moderately packed soils were adjacent to each other.


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