LONGTPEDIA. 



The genera belonging to this sub-family are four 

 Longipedia, Ectinosoma, Zosime, and Bradya. 



Inner 



branch 



of 



first 4 



pair 



feet 



Diagnosis of Genera of Longipediince. 



'2-jointed Zosime. 



3-jointed; f 5 ' or 6 -jointed Longipedia. 



inner branch 



of posterior 1 J' ? r 3 :J ol ^ ed j C 2 -Ji*ted . . .Ectinosoma. 

 . first pair of foot- ^ 



of 



antenna 



^ jaws well developed, (.^-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. 

 Maxillaa (Plate XXXIV, 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 

 setas. First four pairs of feet having both branches 

 3-jointed, and adapted for swimming ; first pair 

 somewhat smaller than the rest ; second pair having 



