48 H. J. HANSEN. 



Length. — 4 to 5 mm. 



Locality.—Chile : S. Vicente, April 0th, 1809, nine 

 specimens; Temuco, April 4th, 1809, five specimens (F. 

 Silvestri, coll.). 



Remarks. — This species is sharply distinguished from all 

 other forms, with exception of S. capensis, by its second 

 scutum, which has two pairs of very long setas directed out- 

 wards and forwards, and the posterior angles flatly rounded 

 and not produced ; from S. capensis it is easily separated by 

 the long seta) on the metatarsus and tarsus of the posterior 

 legs, by the shape of the claws, by its cerci being compara- 

 tively tliicker, etc. 



9. Scntigerella capensis, n. sp. PI. 3, figs. 5a — 5/; 

 PI. 4, figs. 1 a — 1 e. 



Material. — Three specimens, not very well preserved. 

 One specimen is large and adult, another is somewhat smaller, 

 with only eleven pairs of legs, and both have been taken ia 

 the same locality. The third specimen, captured in another 

 place, has the full number of legs, but is nevertheless much 

 smaller than the specimen with eleven pairs of legs; it presents 

 besides several minor differences from the two large speci- 

 mens. I have therefore found it practical to base the 

 following description of this species on the two large 

 specimens, especially on the adult one, and to deal with the 

 third specimen under "variation." 



Head. — It is short and very broad, with well-developed 

 lateral angle, and the longest seta in front of this angle is a 

 little longer than the breadth of the proximal antennal joints. 

 The state of preservation did not allow a study of the central 

 rod. 



Antennee. — They are incomplete, but in the adult speci- 

 men thii"ty-seven joints have been preserved in one of them. 

 The whorls (fig. la) agree much with those in S. chilensis, 

 with the exceptions that the secondary whorl does not begin 

 on the upper side before about the twentieth joint, thsit the 



