90 H. J. HANSEN. 



with the processes considerably sinallei' than tlioso on the 

 second scutum, much broader than long, distally a little 

 produced, and the distance between them nearly twice as 

 long as their length; the setas less numerous, otherwise 

 nearly as on the second scutum. 



Legs. — The last pair are rather short (fig. 6 e). The tibia 

 with one dorsal seta, which is a little shorter than the 

 diameter of the joint ; the metatarsus with two dorsal pro- 

 truding seta) in the anterior row about as long as the depth 

 of the joint. The tarsus is not quite four times longer than 

 deep, with three protruding seta3 in the anterior dorsal row, 

 and the two distal ones of these are somewhat longer than 

 the depth of the joint. The claws (fig. G/) are moderately 

 short, the anterior one rather robust, a little longer and 

 somewhat thicker than the other; the front seta is mode- 

 rately short. The first pair (fig. G g) & little longer than 

 thick, with a small terminal acute process and about three 

 seta), one of which is long. 



Cerci (figs. G Ji and 62). — Eather large, almost as long as 

 the last pair of legs, four to four and a half times longer 

 than deep, and especially in its proximal half considerably 

 broader than deep. They are very densely clothed with 

 .seta3, many of which protrude in all directions, and some of 

 them about half as long as the depth of the cerci, while the 

 others are much shorter and depressed. The terminal area 

 looks outwards (fig. 6 h), is very oblique, and not half as 

 long as the depth of the cerci ; the surface on the opposite 

 side rather short, with about six lines. The apical seta is 

 very short, much shorter than the area. 



Length. — The adult specimens measure from 2 to 2-(J mm. 

 Locality. — Southern Brazils: Bella Vista (Parana), two 

 specimens. Paraguay : Tacurii Pucii (Alto Parana), July Gtli, 

 1900, two specimens. Argentina (Misioues) : Pampa Piray, 

 July 21st, 1900, one speciiueu ; S. Ana, July 27th, 1900, two 

 specimens; Posadas, June, 1900, four specimens. (All 

 specimens collected by Dr. F. Silvestri.) 



Remarks. — This species is easily separated from all other 



