Hoplopsyllus anomalus

Hop·lop·syl·lus a·nom·a·lus

(hop'lō-sil'ŭs ă-nom'ă-lŭs),
A species of flea parasitic on ground squirrels of the western U.S., and a vector of plague.
[G. hoplo, tool, weapon, + psyll, flea]