Scorpions of the Genus Tityus. 51 3 



liand-back, which exceeds the length of that part of the 

 movable digit distal to the basal lobe ; the digits relatively 

 weakly sinuate and lobate. 



Pectinal teeth 15-17. 



Measurements in •millimetres. — ? . Total length 64 ; length 

 of carapace 7, of tail 39, width of its first segment 4, of fourth 

 4"1, of vesicle 3, of brachium 2'5, of hand 3*5 ; length of 

 hand-back 5, of hand 8'1. 



6. Total length 68; length of carapace 7, of tail 44; 

 width of its first segment 4, fourth segment 5, vesicle 3*4 j 

 length of brachium 11, of hand-back 8, of movable digit 10 ; 

 width of brachium 3, of hand 4"1. 



hoc. Bogota (Colombia). Several specimens procured 

 from Mr. I. da Costa. 



Differs from the rest of the allies of americanus in its smooth 

 vesicle, as well as in other characters appertaining to sex &c. 



Tityus dasyurus, sp. n. 



Closely allied to T. metuendus^ Poc. 



Tail robust, the fourth segment a little wider than the 

 first, its width more than half its length, the fifth just twice 

 as long as broad ; vesicle as wide as the brachium, almost as 

 wide as the hand ; the intercarinal spaces of the tail thickly 

 and coarsely granular (with the exception of the superior, 

 which are only finely so). 



Band of chela scarcely wider than brachium, with strong 

 and subgranular keels, the external finger-keel complete, the 

 movable digit more than twice the length of the hand-back. 

 Pectinal teeth 20. 



Measurements in millimetres. — Total length 78; length of 

 carapace 8, of tail 47, width of its first segment 4*7, of fourth 5, 

 length of fourth 9 ; width of vesicle and of brachium 3*2, of 

 hand 3'3 ; length of hand-back 5, of movable digit 11*2. 



A single female example from Porto Rico [Keyserling 

 coll.). 



Tityus discrepans (Karsch). 

 Androcottus discrepans^ Karsch, Mitth. Miinch. ent. Ver. 1879, p. 11, 



Of this species the British Museum has three specimens — 

 one adult female ticketed "Brazil" {Keyserling coll.), a 

 second adult female from Venezuela {Keyserliny coll.), and 

 one young individual from Caraccas {Dr. Ernst). Seeing 

 that Karsch's type was also from Caraccas, there is no reason 

 for doubting the identification of these specimens. 



Although the male is unknown to me, the species is an 



