The Arachnid Order Solifugae

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PHYLOGENY/TAXONOMY

Phylogeny of the Solifugae
Keys to FamiliesFamily Ammotrechidae
AMMOTRECHINAE
  Ammotrecha
         Ammotrecha araucana
         Ammotrecha chiapasi
         Ammotrecha cobinensis
         Ammotrecha enriquei
         Ammotrecha friedlaenderi
         Ammotrecha itzaana
         Ammotrecha limbata
         Ammotrecha nigrescens
         Ammotrecha picta
         Ammotrecha stollii

  Ammotrechella
  Ammotrechesta
  Ammotrechinus
  Ammotrechula
  Antillotrecha
  Campostrecha

  Dasycleobis
  Neocleobis
  Pseudocleobis
MORTOLINAE
  Mortola
NOTHOPUGINAE
  Nothopuga
OLTACOLINAE
  Oltacola
SARONOMINAE
  Branchia
  Chinchippus
  Inessa
  Procleobis
  Saronomus
INCERTAE SEDIS
  Chileotrecha
  Eutrecha
  Xenotrecha
  Happlodontus

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

 

 

 

 

 

 

 

 

 

 

 


 


 

Ammotrecha chiapasi Muma 1986

Ammotrecha chiapasi ►Muma, 1986: 15-16, figs 38-40; Muma, 1987: 15-16, figs 38-40; Vázquez Rojas, 1995: 31; Vázquez Rojas, 1996e: 76; Armas, 2004b: 59; Harvey, 2003: 200. Brookhart and Brookhart, 2006: 323.

HOLOTYPE: Mexico: Chiapas - San Cristobal de las Casas, in house, 29 October 1971 (Dennis E. Breedlove), 3 males (holotype, 2 paratypes) and 2 females (allotype, paratype).  Deposited in the California Academy of Sciences. 

Original description:
Muma, 1986: 15-16, figs 38-40:

         "MALES: Total length 16.5 to 17.0 mm.  Chelicerae 1.3 to 1.4 mm wide and 4.2 to 4.7 mm long.  Propeltidium 2.9 to 3.1 mm wide and 2.3 to 2.7 mm long.  Holotype larger measurements. 
         Coloration in alcohol pale to bright yellow marked with purplish brown essentially as in A. stolli [sic].  Venter, malleoli, sternites and appendage coxae pale yellow. Chelcerae and propeltidium bright yellow with propeltidium slightly darker.  Abdominal tergites dark along margins and lighter to almost white mesally; abdominal pleura dusky dorsally and pale laterally.
Legs and palpi dusky on tarsi, metatarsi, tibiae and apical ends of femora; palpi with a pale to white ring at the proximal end of the metatarsi that is broadest ventrally and interrupted dorsally.  One of the paratypes has the abdominal pleura paler than usual with the result that the tergite markings form two distinct dorsal stripes.
         Dentition essentially typical of other males of the genus except for the dorsal indentation of the fixed cheliceral finger as shown in figure 38.  Palpi clothed with the usual cylinder bristles, and long and short hairs, but lacking a series of stout spine-like setae on the tibiae and metatarsi as shown in figure 39.
         Chelicerae 3.2 times longer than wide.  Propeltidium 1.2 times wider than long.  The eyes are separated by less than one diameter and the flagellum is attached to the fixed finger with an elongate, elliptical disk just behind the principal tooth.  Flagellum not visible from ectal view.
         FEMALES: Total  length 20.0 to 20.5 mm.  Chelicerae 1.7 to 2.1 mm. wide and 2.7 to 3.1 mm. long.  Allotype larger measurements.
         Female coloration essentially the same as that of the males except somewhat paler.
         Structure also similar to that of the males except for sexual differences.  Chelicerae as shown in figure 40, with peak of cheliceral carina over first fondal tooth.  Palpi clothed as in the males.
         Chelicerae 2.9 times longer than wide.  Propeltidium 1..4 times wider than long.  Eyes separated by less than one diameter.  Opercula 2.5 times wider than long; caudal notch 3/5 times the length of the opercula.
 .

Fig. 38 - right male chelicera, ectal view; Fig. 39 - right male palpus, mesoventral view; Fig. 40 - right female chelicera, ectal view.

DISTRIBUTION: Mexico: Chiapas.  Known only from type series.

PUBLISHED RECORDS:  Known only from the type series.

NOTES:  Muma (1986) noted that this species is readily distinguished from others in the genus by the presence of a white ring at the proximal end of the palpal metatarsus and the lack of paired, stout, spine-like setae on the palpal metatarsus.  Vázquez Rojas (1995) included the species in a checklist of arachnids occurring in Mexico.  Armas (2004) listed the species in a catalog of the solifuges of Central America and the Antilles, noting that it was known only from the type locality.  Brookhart and Brookhart (2006) included the species in their checklist of  North American solifugae, again noting that it was known only from the type series.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   
   
 


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