TITYUS. 



43 



Measurements in mm.— Total length 83, carapace 8 ; tail 54, its fifth segment 10 ; length of brachium 9, 

 width 3 ; width of hand 4 ; length of underhand 6-2, of movable finger 10'5. 



Hab. Panama, Tintin in Darien {Br. Festa x 



This description and figure are taken from the typical and only known exampl 

 kindly lent to me by Dr. Borelli. 



3. Tityus androcottoides. (Tab. IX. figg. 5, 5 



Karsch, Mittheil. Munch, ent. Ver. 

 Mag. Nat. Hist. (6) iv. p. 57 (1889) 



Wiss. Anst. viii. p. 113 (1891) 3 (part.) ; 



Thorell, Bull. Soc. Ent. Ital. xxv. p. 371 (1893) 



Tityus androcottoides, Pocock, Journ. Linn. Soc, Zool. xxiv. p. 377 (1893) 5 ( 



Ma 



6 



Kraepelin, Das Tierr., Scorpiones 



et Pedipalpi, p. 77 (1899) \ 







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 ■ 



2 . Colour of trunk above and below tolerably uniform deep brownish-black or reddish-brown, chelae redder, 

 with black yellow-tipped fingers, pectines and tarsi yellow ; in smaller forms the legs are mottled, and 

 there are traces of spots on the terga. Carapace granular, with coarsely granular keels, about as long as 

 the third caudal segment, a little shorter than the brachium, Terga coarsely granular, with median 

 granular keel, the anterior overlapped area finely granular. Sterna finely but thickly granular throughout, 

 except the subpectinal area of the first, which is nearly smooth ; a nearly smooth narrow ridge on the 

 second, third, and fourth, that on the third expanding posteriorly into a smooth triangular area, the last 

 with four coarsely granular keels. Tail nearly six times as long as the carapace, slender, nearly parallel- 

 sided ; the first segment about one-third longer than wide, second not quite twice as long as wide, third 

 twice as long as wide, fourth and fifth more than twice as long as wide ; the intercarinal spaces finely 

 and closely granular, the upperside more finely so than the sides and lower surface ; all the keels well 



v developed, and evenly and coarselv granular ; median lateral keel present only on the first segment ; the 

 two inferior median crests on the first distinct, but inwardly geniculate towards the posterior ends ; on the 

 second extending throughout the anterior half of the segment, but behind that point replaced by a median 

 keel which extends for a short distance forwards between the two, and posteriorly bifurcates into a right- 

 angled triangle ; on the third segment the pair of keels is present only on the anterior fifth of the under 

 surface, the median keel occupying the rest of the area, and not so distinctly bifurcated as on the second ; 

 on the fourth the paired keels are only represented by three or four granules, the median keel extending 

 practically throughout the length of the segment ; fifth segment with squared edges ; vesicle granular 

 below, wider than high, and as wide as the brachium or hand, with a strong, triangular, subaculear 

 tooth.' Chelce finely and closely granular, with coarsely granular keels ; hand as wide as brachium, its 

 width barely two- thirds the length of the underhand, which is less than half that of the movable finger ; 

 upperside of hand coriaceous, the finger-keels weakly granular or crenulate, the external finger-keel 

 completely divided ; fingers long and slender, the movable long and slender, much longer than the fifth 

 caudal segment. Legs finely granular, granularly crested. Pectims with 16-17 teeth and conspicuous 



basal lobe. , ' 



6 Kesembling the female, except in the greater length of the tail and chelae. Taxi more than seven times 

 as long as the carapace, which is about equal to its first segment, the latter rather more than twice as 

 long as wide, the fourth about four times as long as wide ; vesicle also longer than in the female. Chelce 

 with humerus and brachium distinctly longer than carapace ; hand wider than brachium, its width 

 scarcely more than half the length of the underhand, which is more than half the length of the movable 

 finger ; the latter resembling that of the female. Pectinal teeth 18. 



$. Total length 73, carapace 7; tail 44, width of first segment 3-5, of fifth 3'2; 

 leng'thof brachium 8, width 2-6; width of hand 2-8; length of underhand 4, of movable finger 9-8, 



g2 



Measurements 











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$ 



