94 Mr. R I. Pocock on Neotropical Scorpions. 



collection of the late Count KeysevHng, to whose memory I 

 dedicate the species, and one small dry one in the Museum 

 collection, ticketed, though I doubt with accuracy, Brazil. 



One of the examples from Coquimbo has larger pectines 

 than the others and appears to be a male ; the tail of this is 

 unfortunately gone, but the palpi show no differences from 

 those of the adult female described. 



Two others from Coquimbo and the one from Brazil are 

 young, and it is interesting to note that in them the palpi are 

 much yellower and the hands much thinner than in the 

 adults. 



Characteristic of this species are the granular keels upon 

 the last sternite and upon the first and second caudal 

 segments. 



Part III. 



Fam. BothriuridsB. 



Botliriurus honariensis (C. Koch) . 



Broteas honariensis, C. Koch, Die Aracliniden, x. p. 12, fig. 762, (S . 



Broteas erythrodactylus, id. torn. cit. p. 16, fig. 764, 5 • 



Chactas Haveisii, Butler, Cist. Ent. i. p. •32-3 (1874). 



Chactas literarius, id. ibid. 



Telegonus vittatiis, Gervais, Arch. Mus. iv. p. 227 &c. pi. xi. fif?. 30. 



Bothriurus t-ittafus, Thorell, ^Vct. Soc. Ital. xix. pp. 168 &c. ; hut in all 



probability not synonymous with Scorpio vittatus of Gueriu, Voyage 



de la ' Coquille,' Arachnides, p. 50. 



This species is extremely abundant in Uruguay and Rio 

 Grande do Sul, whence the British Museum has received 

 upwards of fifty examples. We also have a specimen from 

 Corrientes, and two ticketed Moyabama (Peru). This last 

 locality, however, may be doubtful. 



The colour of the adult is mostly piceous or rufo-piceous, 

 but in the young there is a fine flavous median dorsal band 

 and a wide longitudinal stripe on the under surface of the 

 tail; moreover the interocular area and the legs may be 

 fulvous. 



I have never seen either an adult or a young of either sex 

 approaching the colouring that is ascribed to Scorpio vittatus 

 of Gu^rin. Dr. Thorell has made the same observation. 

 This fact renders it probable to my mind that Gervais fell 

 into error in his identification of vittatus. 



In vittatus the anterior and posterior borders of the carapace 

 and the posterior borders of the tergites are said to be black, 

 and a similar coloration is presented by Scorpio Gervaisii of 

 Guerin (Icon. E^gne Animal, Arachnides, p. 10), and by 



