The Arachnid Order Solifugae



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



Keys to Families

There are two kinds of keys offered here: a multiple entry and a dichotomous key.  The multiple entry key allows you to select features of a specimen in any order and, as you select those features, will eliminate any taxa lacking those features from the identification process.  This is particularly useful for identifying damaged specimens in which certain features are missing, and may be of greater use in identifying immatures.  As you enter each feature that your specimen possesses, taxa lacking that feature are eliminated from further consideration, thus narrowing in on a final identification.  The dichotomous key asks you to look at features in a particular order, sequentially narrowing the possible identifications until a final identification is achieved.  You may choose which key to use for identifications by clicking on the appropriate link below:


Multiple Entry Key                  Dichotomous Key

Tabular Key (below)

  Ammotrechidae Ceromidae Daesiidae Eremobatidae Galeodidae Gylippidae Hexisopodidae Karschiidae Melanoblossidae Mummuciidae Rhagodidae Solpugidae
Anal somite flattened flattened flattened flattened flattened flattened flattened flattened flattened flattened hemispherical flattened
Anus terminal terminal terminal terminal terminal terminal terminal terminal terminal terminal ventral terminal
taarsal segmentation 1-1-1-1 to 1-2-2-4 1-2-2-2 1-1-1-1 to 1-2-2-4 1-1-1-(1-3) 1-2-2-3 1-1-1-1 1-1-1-1 1-1-1-1 1-1-1-(1-2) 1-1-1-1 to 1-2-2-4 1-1-1-1 1-4-4-(6-7)
leg I tarsus without claws basitarsus 2 claws without claws 1 or 2 2?         without claws basitarsus 2 claws no claws
tarsal 2-4 claws smooth smooth smooth smooth setose smooth 2 & 3smooth, leg 4 lacking claws or tarsal segment smooth smooth smooth smooth smooth
flagellum paraxially  immovable paraxially  movable paraxially  movable paraxially movable paraxially movable paraxially immovable paraxially movable paraxially immovable paraxially immovable   paraxially immovable paraxialy immovable
flagellum immovable, translucent elliptical membrane membranous or whiplike, mesal, usually associated with one or more enlarged setae membranous ovate to irregular consists of one or more modified setae on mesal surface, usually hidden by associated setae a single, captitate seta, meal more or less membranous process associated with one or more strongly modifed setae mesal coiled whiplike structure fanlike to coiled in shape, woth whiplike setae located on the mesal surface, and with associated modified setae and a dorsal modified cheliceral horn consists of 1-5 elongated or enlarged plumose setae that may be situated in a bundle and associated with other plumose setae on the mesal surface oval membranous structure

"not as above"

two flattened curled setae that form a curved, truncate hornlike tube on mesal surface mesodorsal whiplike structure separated from the fixed finger by a suture
Chelicerae           not multidentate   multidentate     powerfully toothed  
Propeltidium           Exterior lobes free exterior lobes free to partly fused Exterior lobes posteriorly fused        





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