The Arachnid Order Solifugae

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PHYLOGENY/TAXONOMY

Phylogeny of the Solifugae
Keys to FamiliesFamily Ammotrechidae
Family Ceromidae
Family Daesiidae
Family Eremobatidae
Family Galeodidae
Genus Galeodes
Genus Galeodopsis
Genus Galeodumus
Genus Gluviema
Genus Othoes
     Othoes floweri
     Othoes hirsti
     Othoes rimmonensis
     Othoes saharae
     Othoes vittatus

Genus Paragaleodes
Genus Paragaleodiscus
Genus Roeweriscus
Genus Zombis

Family Gylippidae
Family Hexisopodidae
Family Karschiidae
Family Melanoblossidae
Family Mummuciidae
Family Rhagodidae

Family Solpugidae
Catalog of the Solifugae

Othoes hirsti Lawrence 1954

 

Othoes hirsti Lawrence 1954. Paintings by Vladimir Timokhanov

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Othoes hirsti Lawrence 1954a: 118-120, figs 5a-b; Panouse, 1964: 57-65, figs la, 4-5, 6a-b, 7a-d, 8-9, l0a-b, 11a-b.

Types:   2♂♂, Jedda, Saudi Arabia, collected by H. C. Trott (B .M. 1950.3.9.54-55)..

Original description (Lawrence 1954a: 118-120, figs 5a-b):

     Colour. The whole animal light yellow except the tibia, metatarsus and tarsus of the palp which are chocolate brown (tibia), and blackish-brown (metatarsus and tarsus), contrasting sharply with the remainder; head and chelicerae without darker markings or infuscation but dorsum of abdomen in the middle a little darker than the rest.
     Dentition
as in fig. 5 A seen from the outer side; outer series of cheek teeth with three, inner series with two.
Flage1lum
as in fig. 5 A seen from outer side, fig. 5 B seen from inner side; chelicerae with two long slender setae rising from outer side near the dorsal margin and posterior to the insertion of the flagellum; these two setae differing from other similar ones on the outer surface of the dorsal jaw in being longer and directed upwards; a very stout conical spine on the inner side of dorsal jaw, posterior to the origin of flagel1um, fig. 5 B.  The shape and structure of the flagellum not differing in general from the typical form found throughout the Galeodidae.
     Spination.
Metatarsus of pedipalp without cylinder bristles, ventrally with six to seven short, stout, conical and tooth-like spines on each side, not very regularly paired; tarsus unspined; tibia below with about five pairs of very long lateral spines projecting forwards at about 45 to the long axis of the segment and with numerous other shorter vertical spines; femur below in its distal half with some very long perpendicular spines, the proximal half with much shorter spines. Sternite VI with eight to ten very long, slender and pointed ctenidia, reaching almost to the posterior margin of sternite VIII; malleoli very long, the stalks slender, the terminal membranous portion very wide, the longest malleolus 75 mm in length.
     Dimensions.
Total length (including chelicerae) 46, ohelicerae in situ 13.5 mm.
     The genus was based by Hirst (1911) on female specimens only and male forms have not hitherto been recorded. The males here described agree fully with Hirst's account of Othoes in the generic distInctiveness of the claws, the second joint being greatly elongated and clothed with unusually long hairs. The ventral spination of the tarsi of legs III and IV also agrees with the formula given by Hirst, that of leg III being 1.1.2.2/2.
     The species differs from both of those described by Hirst in its much larger size. Many of the structures, such as spines, ctenidia and malleoli
, seem to be greatly elongated. The type locality of one of Hirst's species was Upper Egypt (Wadi Halfa), that. of the other being unknown.

 

 



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