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68 



SOLJFUG^E. 









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D^SIA. 







. 







Gluvia, C. L. Koch, Arch. f. Naturg. viii. 1, p. 355 (1842) ; Uebersicht Arachn. Syst. v. p. 97 (1850) 



(part,). 

 Dasia, Karsch, Arch. f. Naturg. xlvi. 1, p. 234 (1880) ; Kraepelin, Jahrb. Hamb. Wiss. Anst* xvi. 







p. 227 (1899) ; Das Tierr., Palpigradi et Solifugae, p. 88 (1901). 

 Bit on, Karsch, Arch. f. Naturg. xlvi. 1, p. 234 (1880). 







Tarsi of second and third pairs of legs two-jointed, of fourth pair four-jointed ; tibia of second leg with five, 

 of third leg with three spines. Upper jaw of mandible in female normally toothed, with one small inter- 

 mediate, one larger proximal, and two large distal teeth ; in the male the upper jaw is untoothed or 

 weakly toothed. Flagellum membranous, fastened by a pivot to the inner surface of the upper jaw, oval, 

 posteriorly pointed, its edges incurved. 











Type I), prcecox, C. L. Koch. 





t 





Distribution. Southern shores of the Mediterranean ; Africa; Mexico. 





1. DsBsia prSBCOX. (Tab. XII. fig. 11.) 







Gluvia precox, C. L. Koch, Arch. £. Naturg. viii. 1, p. 355 (1842) l ; Die Arachn. xv. p. 95, fig. 1483 





(1848) 



Datames prcecox, Simon, Ann. Soc. Ent. Fr. (5) ix. p. 144 (1879) 8 . 





Dcesia prcecox, Karsch, Arch. f. Naturg. xlvi. 1, p. 234 (1880) 4 ; Kraepelin, Das Tier*., Palpigradi 



et Solifugae, p. 98 (1901) \ 







* 



i 





cJ . Colour : mandibles and carapace yellow, the latter tinted with brown ; abdomen black above, dark beneath 

 with yellow borders, thickly clothed with white hairs ; palp reddish-brown ; legs of first, second, and 

 third pairs yellowish, of fourth pair with femur and patella darker. Mandible with upper jaw slender, 

 long, pointed, lightly arched, toothless ; basal portion of the jaw furnished internally with four cheek- 

 teeth, an upper long, sharp, and forwardly directed, and three subequal smaller teeth below ; lower jaw 

 terminating in a long, slender, and curved fang, and armed in the basal two-thirds of its length with two 

 large teeth — an anterior directed forwards, and bearing near the base of its upperside a smaller angular 

 tooth, and a posterior erect but curved backwards at the tip, and bearing near the base of its anterior 

 edge a small tooth. Flagellum long, elliptical in its basal portion, with subparallel sides, its upper edge 

 incurved ; its extremity gradually narrowed, with a sharp and slightly upturned point. Palp with its 

 tibia armed on its inner edge at the distal end beneath with three weak spines. Second abdominal 

 sternum without modified bristles in front of the stigmata. 







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Length of body 11 mm. 



Hob. % Mexico 



1-5 





locality assigned to this species is probably erroneous, seeing that the remainin 









members of the genus Dcesia have been recorded only from Syria, Arabia, Cyprus, and 



Africa (from Algeria and Egypt to Cape Col 



But since there is in many 



faunistic similarity between the Mediterranean area of the Old World and the S 

















of North America, the possibility of the genus occurring in both continents 













must be borne in mind. At all events, the question as to the locality of D. prcecox must 

 be left undecided until the species, of which only the one typical example is at present 











known, has b 























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