h'ttle-known Neotropical Scorpions. 475 



again, speaking of the tail, " caiinge media? inferiores laives^ 

 in segmento quarto obsoletai." Kraepelin completely ignores 

 these statements. U. pnrvulus is compared by Karsch with 

 maculaius, and is probably a synonym of it. 



Hadruroides charcasuSy Karsch. 



Iladrnrus chaixastis, Karsch, MT. Miincli. ent. Ver. iii. p. 138 (1879). 

 Hadrurus Paaschi, id. Berl. ent. Zeit. xxv. p. 290 (1881). 

 Hadrurus robustus, Boeris, Atti Soc. Modeua, viii. p. 135. 

 Hadruroides charcusus, Pocock, Ann. & Mag. Nat. Hist. (6) xii. p. 329 



(1893). 

 Hadruroides lunatus, Kraepelin, Tierr., Scorp. p. 188 (1899) (in part.). 



Differing from II. lunatus in its much larger size, very 

 thick hand, of wiiich the inner surface is granular, and large 

 number of pectinal teeth. The largest specimen in the 

 British Museum is a male, and measures 78 millim. 



The pectinal teeth vary from 16-19 in $ and from 18-22 

 in fT . 



The British Museum has specimens from the following 

 localities: — Paita {Hamh. Mus.), Eten and Baiios (P. 0. 

 Simons), in Peru; Bolivia [Keyserling coll.). 



Hadruroides inaculatus, Thorell. 



Hadrurus maculattis, Thorell, Atti Soc. Ital. Sci. Nat. xix. p. 186 



(1877). 

 ? Hadrurus par vulus, Karsch, MT. Miinch. ent. Ww 1879, p. 135. 



Loc. Callao (Peru). 



According to Thorell's description this species differs from 

 77. lunatus in having four keels on the underside of the last 

 abdominal sternum and of the tirst, second, and third caudal 

 segments. From Karsch's description it may be inferred 

 that 77. parvulus presents similar features. 



Hadruroides carinatus, sp. n. 



$ . — Colour yellowish brown, the terga sometimes showing- 

 traces of four narrow black bands ; cTielge, legs, and tail 

 paler yellow, variegated with small black spots. 



Upperside of body, except on the frontal area, which is 

 smooth, covered with line close-set granules, finer and closer 

 than in 77. lunatus. 



Sterna smooth, impressed with coarse scattered punctures, 

 the last granular at the sides and furnished with four strong 

 but weakly granular keels. 



Tail strong, the lateral surface of the anterior segments 

 more granular than in 77. lunatus, the inferior median 



