( 480 ) 



has abont half a dozen bristles above the stigma, cue of them being stout. The 

 bristles at the ventral edge of this tergite are more nnmerons than in P. anstralts. 

 The anal steruite is longer than in P. austraUs, and the stylet somewhat thinner. 



Pidcx bohhi Wagn., which we only know from Dr. AVagucr's description and 

 figure, is a similar insect. The present species, however, ditfers from it iu having 

 the second segment of the maxillary palpus and the end-segment of the rostrum 

 longer. The mosothoracical sternum bears in ^o/^/.s? three bristles, and the eijimerum 

 of the mesothorax six. The bristles on the hindfemur and those on the eislith 

 abdominal section are different in position ; the tirst foretarsal segment of P. bohlsi 

 is practically the same in length as the second, and the apical spines on the 

 metanotnm and first abdominal tergite are larger in number in P. bohUi than iu the 

 present species. 



Length: cJ, 2-4 mm. ; ? , 3 mm. 



We have nine examples of this species collected by Mr. A. Robert, as follows : — 

 6 S, Sao Paulo, Brazil, November 22, 1901. Didelphys aurlta. 

 3 ? , ,, „ „ „ 24 „ jSldoiwjs squamipes. 



2. Pulex scopulifer spec. nov. (PI. XIII. fig. 5). 



Head. — The frons is not notched. There is a vertical row of three eye-bristles, 

 two of the bristles standing in front of the eye and the third at the geual edge. The 

 occiput bears two bristles above the antennal groove and a complete snbapical row 

 of hairs, besides the usnal row of short bristles ])laced along the antennal groove. 

 The rostrum reaches to the apex of the forecoxa. 



Thorax.— Each of the thoracical nota bears one row of bristles. The 

 mesothorax hears one bristle on the sternum and four on the epimernm. The meta- 

 thoracical epimerum has two vertical rows of bristles, the first containing eight, the 

 second five to seven. 



Abdomen. — There is one row of bristles on each tergite, except on the first, 

 where there are two rows. On the seventh tergite there is a single apical bristle 

 placed on a cone which jjrojects far beyond the edge of tiie segment — a chariicter 

 peculiar to this species. The cone bears a minute hair on each side. The first 

 sternite bears one ventral bristle on each side, while there is a row of four or five 

 on the following four sternites, the sternite of the seventh segment bearing a row 

 of seven or eight, with an additional bristle in front of them. The stigmata are 

 rounded, and are placed above the first bristle. 



Legs. — The mid- and hindcoxae bear two bristles posteriorly at the apex. 

 There is a comb of four to six spines on the inner side of the hiudcoxa. The 

 hindfemur is obtusely angulate veutrally towards the base. It bears on the outer 

 side two snbventral bristles near the apex, and on the inner side a subventral row 

 of four, of which two are placed before the middle and two farther back. On the 

 outer side of the himlfemur there are two rows of bristles, the more dorsal row 

 being incomplete. There are also two thin hairs at the ventral edge of the hind- 

 femur in addition to the apical and snbapical ventral bristles. The dorsal bristles 

 of the tibiae are stout. One of the snbapical hairs of the foretibia is short, very 

 heavy, and blunt. The longest apical bristle of the foretibia is not so long as the 

 tibia is broad. The longest bristle of the fifth pair of bristles of the hindtibia is 

 hardly longer than the tibia is broad. The first foretarsal segment is a little 

 shorter than the second. The longest apical bristle of the hindtarsns reaches 



