207 



Anterior antennce reach to the last thoracic segment, 22- 

 jointed, Aa 8-10 and 24-25 uniting. Length of the joints in 

 0,005 milHm. 



Aa. 234567 8-10 II 12 13 14 15 16 17 18 19 20 21 

 3 I I I I I 4,5 II 1,5 1,5 1,5 1,5 1,5 1,5 I I I 



22 23 24-25 



1,5 2 4,5 



Posterior antennce. B 2 with i S ; Re twice as long as Ri 

 and thicker than it. Re 2 twice as long as Re i and Re i -|- 2 

 as long as the last joint. Ri i twice as long as Ri 2+3 and 

 three times longer than broad. The Si reaches to the end of 

 Ri 2+3. The Ri 24-3 twice as long as broad. Le with 54-1 

 seta?, Li with 54-3 seta?. Exterior margin of the joint hairy. 



M audible e\ongAiit\ Re inserted in the middle of B2, which 

 carries i Si reaching to the end of Ri, Re longer and broader 

 than Ri. Teeth of the masticatory apparatus, especially the 

 interior ones, covered with dense long and stiff hairs, giving it 

 the appearance of a brush. 



First maxilUped stout with the lobes crowded distally. Li 

 with 3 long spiniferous and i somewhat shorter hairy seta. 

 L2 and 3 with 2 longer and i shorter seta. L4 with i stout 

 falciform and i thinner seta. B2 carries i very strong falci- 

 form seta, I thinner but of nearly the same length, and a third 

 somewhat shorter and much thinner seta. The setas of Ri are 

 all soft and flexible. 



Second niaxiUipcd. Bi and B2 of about equal length ; Ri ^ 

 as long as B2. Bi with 14-24-14-2 + 3 settu, B2 with 2)+ 2 

 setaj ; of th:; first group the distal is the longest and the median 

 the shortest. Ri 5-jointed, Ri 2 the longest and Ri 5 the 

 shortest. Ri i carries 4 seta3. 



Natatory legs. In my specimen the 3rd and 4th pair were 

 lost. B2 of the ist pair with i plumose Si. Re 1,2 and 3 of 

 about equal length, Se 1,1,1 longer than the joints, narrow and 

 with stiff hairs. St similar to the Si. Si 0,1,3, jointed in the 

 middle. Ri reaching to the middle of Re 2, with a lobus on 

 the exterior side and 2-1-3 Si, the 3 latter being jointed in the 

 middle. Bi of the 2nd pair with i plumose Si. Ri reaches to 

 the distal margin of Re 2. Proportional length of the three 

 joints of Re and St 10:12:18:18. Se 1,1,3. ^€ i comparatively 

 short, the other as long as the joints are broad. Si 1,1,4. Ri 2 

 nearly three times as long as Ri i ; Se 0,1 ; Si 1,4. The fiat 

 side of Ri carries near the Si a group of some few very delicate 

 spinules. 



Fifth pair of legs symmetrical, 3-jointed ; the third joint, 

 three times longer than the other together, carries in its top 

 3 strong triangular teeth, the two exterior not articulating and 

 with some few spinules, the third articulating and hairy. 



