78 Mr. R. I. Pocock on Neotropical Scorpions. 



b-. The feet long and slender and thickly 

 clothed beneath with irreg-ularly 



arranged long hairs Hadrurochactas, g. nov. 



Type Sclatei-i, sp. n. 

 b^. The lower surface of the feet compressed 

 and armed with a median series of short 

 spines. 

 a^. The anteocular portion of the cara- 

 pace not mesially sulcate, the ocular 

 tubercle elongate in front, i. e. the 

 sulci which embrace it laterally do 

 not unite in front of it ; lateral eyes 

 not prominent. 

 «*. The anterior border of the cara- 

 pace not emarginate ; the ante- 

 ocular portion sloped downwards 



and forwards Teuthraustes, Simon. 



Type atramentarius, Sim. 

 6*. The anterior border of the carapace 

 deeply emarginate ; the ante- 

 ocular portion nearly horizontal. Heterochadas, g. nov. 



Type Gervaisii, sp. n. 

 b^. The anteocular portion of the cara- 

 pace horizontal and mesially sulcate ; 

 the anterior lateral eye usually very 



prominent Chactas, Gervais. 



Type lepturus, Thor, 



Genus Beoteas. 



Broteas Gervaisii, sp. n. (PI. V. fig. 1.) 



Allied to B, Herhstii, Thorell. 



Carapace coarsely granular laterally, the area surrounding 

 the tubercle and the anteocular portion finely and closely 

 punctured. 



Tergites shining, smooth, but finely and closely punctured 

 throughout, at most weakly and sparsely granular posteriorly ; 

 the last smooth, polished, and punctured in front, coarsely 

 granular behind. 



Stermtes smooth, polished, densely and very finely punctu- 

 late. 



Tail rather more than three and a half times as long as the 

 carapace, like that of B. fferbstii, but with the inferior surface 

 of the first segment smooth, polished, finely punctulate, with 

 the median keels almost obsolete ; the median lateral keel 

 present on all the segments, but anteriorly abbreviated on the 

 second to fourth and posteriorly on the fifth, the segments 

 lower than in Herhstii and less strongly excavated above, with 

 the superior intercarinal spaces more granular. 



Palpi and legs smoother than in Herhstii^ finely and closely 

 punctured. 



