The Arachnid Order Solifugae

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PHYLOGENY/TAXONOMY

Phylogeny of the Solifugae
Keys to FamiliesFamily Ammotrechidae
Family Ceromidae
Family Daesiidae
Family Eremobatidae
 

EREMOBATINAE
  Eremobates
      angustus
group
      aztecus
group
      lapazi
group
     pallipes
group
      palpisetulosus
group
        Eremobates affinis
        Eremobates ajoanus
        Eremobates bajadae
        Eremobates bajaensis
        Eremobates bantai
        Eremobates bixleri
        Eremobates coahuilanus
        Eremobates fagei
        Eremobates girardi
        Eremobates gracilidens
        Eremobates guenini
        Eremobates hessei
        Eremobates hystrix
        Eremobates inkopaensis
        Eremobates inyoanus
        Eremobates kastoni
        Eremobates kiseri
        Eremobates kraepelini
        Eremobates leechi
        Eremobates marathoni
        Eremobates nanus
        Eremobates nivis
        Eremobates nodularis
        Eremobates norrisi
        Eremobates otavonae
        Eremobates pallidus
        Eremobates palpisetulosus
        Eremobates papillatus
        Eremobates pimanus
        Eremobates polhemusi
        Eremobates purpusi
        Eremobates pyriflora
        Eremobates scopulatellus
        Eremobates scopulatus
        Eremobates spissus
        Eremobates tejonus
        Eremobates texanus
        Eremobates titschacki
        Eremobates tuberculatus
        Eremobates vicinus
        Eremobates villosus
        Eremobates williamsi
      scaber
group
      vallis
group

  Eremocosta
  Eremorhax
  Eremothera
  Horribates

THEROBATINAE
  Chanbria
  Eremochelis
 
Hemerotrecha


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Family Galeodidae
Family Gylippidae
Family Hexisopodidae
Family Karschiidae
Family Melanoblossidae
Family Mummuciidae
Family RhagodidaeFamily Solpugidae
Catalog of the Solifugae

 

 


 


 

Eremobates gracilidens Muma 1951

Eremobates

HOLOTYPE: United States.

Original description

SUBSEQUENT ACCOUNTS:
Muma and Brookhart 1988:

Eremobates gracilidens Muma

Figures 72 to 76

Eremobates gracilidens Muma, 1951, p. 66; Muma, 1970, p. 17 (male)

TYPES: Male holotype from Twentynine Palms, California, March-April, 1945 Jefferson H. Branch), in AMNH. Female allotype from 9 mi. w. Lone Pine, Inyo Co., CA, VII -19-61 , at light, by P. D. Hurd and ]. Powell , also in AMNH.

DIAGNOSIS: Males distinguished by blade-like to subtriangular process peaked distad of fondal notch of fixed cheliceral finger, the rounded anterior process on movable cheliceral finger, and at least 6 long ctenidia on the first post-stigmatic abdominal sternite.
Female allotype described here distinguished by pale coloration; elongate anterior lobes of opercula; undulate mesal margins of opercular notch; and wide bowed, vulvular ope ning extending to poste r ior ends of posterior opercular lob
es.

DESCRIPTION : Species pale yellow in color with dusky purplish markings. Palpi and legs pale on all segments. Propeltidia narrowly dusky along anterior margin and faintly dusky laterally (fig. 76). Mesopeltidia, metapeltidia, and abdominal terga pale to faintly dusky with pleura pale. Sterna pale.
Males (7) remarkably uniform in size; CP varies from 8.2-9.5 (mean 8.9). Legs long; A/CP varies from 7.1-7.7 (mean 7.3). Fondal notches slightly narrower than base of fixed finger and almost as long as wide; length/width ratio varies from 0.8- 1.00 (mean 0.9) (fig. 72). No mesal tooth on movable cheliceral finger. Two males have slight indentation on rounded anterior lobe of movable cheliceral finger. Minimal number of ctenidia 6 (fig. 73), maximum 8 (mean 7); 2 or 3 specimens have spurious ctenidia.
Female allotype has CP of 10.8; legs short, A/CP 5.7. Mesal tooth of movable cheliceral finger is missing. Opercula 2.1 times wider than long; anterior lobes elongate but not enlarged distally; posterior opercular notch sinuate laterally and occupying 33% of opercula (fig s. 74-7
5).

DISTRIBUTION: This species was described from Twentynine Palms, California and recorded from the Argus Mountains of Inyo County, Califomia by Muma (1951). The female allotype is from Lone Pine, Inyo County, California. We have also examined 6 males and 1 female from Riverside County, 9 males and 2 females from San Bernardino County, and 1 female from Kern County in California. To date this species is known only from southern California. Our collection records indicate a long period of maturity, from March through July. See Plate XX.  Muma (1951) erroneously referred the Argus Mountains to Arizona.

REMARKS: The relationship of this species to others of the series must remain obscure until more females of other species are collected. It should be pointed out, however, that the opercula of this species are very similar to those of spissus new species, an apparently distantly related form.

DISTRIBUTION:

PUBLISHED RECORds:

nOTES:


 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   
   
 



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