The Collaborative International Dictionary of English v.0.48:

Echidnophaga \E*chid"no*pha*ga\, n. (Zo["o]l.)
   a genus of fleas including the stick-tight flea
   (Echidnophaga gallinacea), which is a serious pest in
   subtropical America, infesting poultry and frequently
   attacking man and domestic animals. --[Stedman]
   [PJC] Echinate