amblycephalus

from The Century Dictionary.

• noun In herpetology, the bluntheads, a genus of colubriform serpents founded by Kuhl in 1827, considered by some an aberrant form of Dipsadidœ.
• noun In entomology, a genus of homopterous hemipterous insects, family Cercopidœ: a name preoccupied in herpetology. A. interruptus, a kind of hop-frog or froth-fly, injures hops.