178 bulletin: museum of comparative zoology. 



Santa Ana, 3,000 feet August 



Tineoehaca, 7,000 feet August 



Vilcabamba, 10,000 feet August 



Conservidayo River, —— August 



Sorontoy, 7,000 feet September 



The specimens from Panama were collected in June. 



SCORPIONIDA. 



BUTHIDAE. 



TiTYUs FOOTEi, sp. nov. 

 Plate 1, fig. 1-4. 



Carapace and dorsum of preabdomen from testaceous to dark 

 reddish with blackish markings near eyes and along the anterior border 

 of the carapace, and especially across the caudal borders of the abdo- 

 men, the dark bands widest at middle. Legs and pedipalps yellowish. 

 Cauda proximally from yellow to testaceous of reddish cast becoming 

 decidedly darker distad, the last one or two segments usually black 

 or nearly so ; sting, in individuals in full color, more or less chestnut. 



Carapace and all tergites of preabdomen strongly granular. Pre- 

 abdominal sternites each roughened with minute granules. All seg- 

 ments of Cauda granular, the fifth most strongly so. All tergites of 

 preabdomen with median dorsal keel well developed, that of the fifth 

 incomplete behind, and with two well-developed dorsal keels each 

 side of it; sternite of fourth and fifth segments with five keels of which 

 the median is very weak. First segment of cauda with ten keels, a 

 complete median lateral ridge being present between the usual upper 

 and lower lateral ridges ; second segment with keels the same except- 

 ing that the median lateral is developed only caudad; third and 

 fourth segments w^ith the eight ridges, two median dorsal and median 

 ventral and the two upper and two lower laterals; fifth segment with 

 but five distinct keels, the odd one being a complete median ventral; 

 all keels granular. 



Basal portion of sting finely granular. A well-developed acute 

 spine beneath, (Plate 1, fig. 1). 



