LONGIPEDIA. 



The genera belonging to this sub-family are four : 

 Longipedia, Ectinosoma, Zosime, and Bradya. 



Inner 

 branch 



of 



first 



pair 



of 



feet 



Diagnosis of Genera of Longipediince. 



'2-jointed Zosime. 



3-jointed ; f 5- or 6 -J ointed Longipedia. 



inner branch I 



JJJLACt Ml CLJJ.U1J. I -) ;">* j 1 - rt 1 -I-I 



nf wvstpvi'm- i 2- or 3-jomted ; r2-jomted ...Ectinosoma. 

 .first pair of foot- ] 



^ jaws well developed, C5-jointed ...Bradya. 



Genus 1. LONGIPEDIA, Glaus (1863). 



Body elongated, slender. Head united with the first 

 body-segment and produced into a long, curved beak. 

 Abdomen composed, in both sexes, of five segments. 

 Anterior antennas short, arcuate, indistinctly 5- 

 jointed. Accessory branch of the posterior antennas 

 large, 6-jointed. Mandibles (Plate XXXIV, fig. 4) 

 broad and distinctly toothed ; palp 2-branched, the 

 outer branch consisting of one, the inner of two joints. 

 Maxillas (Plate XXXIY, fig. 5) consisting of a basal 

 plate to which are attached a short and thick manduca- 

 tory process armed with a series of curved teeth, a 

 slender, setiferous, jointed palp, and a short, ovate 

 branchial plate. First pair of foot-jaws (Plate XXXIV, 

 fig. 6) 3-jointed, bearing several long marginal 

 processes which are densely setose at their apices. 

 Second pair (Plate XXXIV, fig. 7) short and broad, 

 3-jointed, fringed with numerous stout, plumose 

 setae. First four pairs of feet having both branches 

 3-jointed, and adapted for swimming; first pair 

 somewhat smaller than the rest ; second pair having 



