365 



298 



Fig. 154. Parathemisto (Euthemisto) libellula (Liichtenstein), female. 



longer than antennae I, their flagellum thin and unsegmented, and the 

 total length somewhat greater than the length of the head. 



The mandibles have a narrow denticulate cutting edge (the left 

 mandible has an accessory plate) and a strong dentate process; the 1st 

 segment of the palp is 2/3 the length of the 2nd and barely shorter than 

 the slightly curved 3rd segment. Maxillae I have a strong spine on the 

 distal margin of the outer lobe and the inner margin of the palp is den- 

 ticulate almost throughout its length. The outer lobe of maxillae II is 

 narrower than the inner and apically bears two strong spines. The outer 

 lobes of the maxillipeds are somewhat broader than in other species of 

 the genus, the inner margin is finely denticulate but the outer convex 



