The Arachnid Order Solifugae

IntroductionPhylogeny/TaxonomyBiogeography/EndemismBiology/EcologyCollections/ResearchBibliographyGlossaryLinks


PHYLOGENY/TAXONOMY

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


 

 

 

 

 

 

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

Genus Eremochelis Roewer 1934
andreasana species group

 

 

         When Muma (1962) first described Eremochelis andreasana (Muma 1962) and Eremochelis larreae (Muma 1962), he placed these two small species  into their own species group, which he called the andreasana group, characterized as follows:. 

Small species.  Males with mesial groove of fixed finger a distinct to indistinct shallow trough along ventral margin of finger.  Apical plumose bristle and apical striate bristle of flagellum complex somewhat flattened and elongated. Basal or ventral tubular bristles situated in a group below and behind fondal notch.  Fondal notch obscure. Females with posterior portions of genital opercula extended ectally into a boot-like form.  Ectal row of teeth graded in size II, III, I, IV; mesial row, I, III, II, IV. Metatarsi of palpi provided with usual clothing. 

         Muma (ibid.) suggested that the andreasana group has affinities with the branchi group, noting the distinct mesial groove and modified flagellar bristles.   He further noted, however, that both original members of the andreasana group have the movable finger modified in a manner similar to that of the imperialis group and the fondal tooth formula somewhat like that of the genus Chanbria Muma 1951.
         Rowland (1974) commented that he could not satisfy himself that a fundamental difference exists between Eremochelis imperialis (Muma 1951) and Eremochelis andreasana in regard to the relative development of the apical bristle, and raised his concerns over utilizing the development of the apical plumose bristles of the flagellum complex in grouping species naturally within the genus.  Rowland suggested that interpreting the relative development of the bristles in question is not clear cut.
         Muma (1986) added Eremochelis sonorae Muma 1986 without altering his diagnosis of the andreasana group, and later (Muma 1989)transferred Eremochelis larreae (Muma 1962) to the imperialis group, transferred Eremochelis rothi (Muma 1962) from the imperialis group to the andreasana group, and refined his diagnosis of the andreasana group by describing its males as having the fixed cheliceral finger undulate or notched venrally, and the flagellum complex with only striate setae apically (the flagellum complex of the imperialis group was characterized as having both striate and plumose setae apically).  Females were characterized as having the lateral pits of the opercula indistinct, often hidden behind the lateral wings (the pits were described as distinct, often invading the lateral wings in the imperialis group).
         Muma (1989) observed that males of most species seemingly related to Eremochelis imperialis have the apex of the movable cheliceral finger modified into a more or less distinct cup, whereas those apparently related to Eremochelis andreasana (Muma 1962) have the apex of the movable cheliceral finger flanged at most.  He further noted that imperialis group species have the apical setae of the flagellum complex serrate, but not especially enlarged.
         Brookhart and  Brookhart (2006) retain Eremochelis rothi (Muma 1962) in the imperialis group without explanation. 
          Muma's (1989) concept of the andreasana group is retained here, and the following species are treated as members:

Eremochelis andreasana (Muma 1962)
Eremochelis rothi (Muma 1962)
Eremochelis sonorae Muma 1986

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   
   
 



THE UNAUTHORIZED COPYING, DISPLAYING OR OTHER USE OF PHOTOGRAPHS OR OTHER CONTENT  FROM THIS SITE IS ILLLEGAL. 
Copyright 2005-2006.  All images in this site, even if they do not include an individual statement of copyright, are protected under the U. S. Copyright Act.  They may not be "borrowed" or otherwise used without our express permission or the express permission of the photographer(s),  artist(s), or author(s).  For permission, please submit your request to wsavary@yahoo.com.