co·le·op·ter·an 
(kō′lē-ŏptər-ən, kŏl′ē-) also co·le·op·ter·on (-tə-rŏn′)
(kō′lē-ŏptər-ən, kŏl′ē-) also co·le·op·ter·on (-tə-rŏn′)n.
Any of numerous insects of the order Coleoptera; a beetle.
[From New Latin Coleoptera, order name, from Greek koleopteros, sheath-winged : koleon, sheath; see kel-1 in the Appendix of Indo-European roots + pteron, wing; see pet- in the Appendix of Indo-European roots.]
co′le·opter·an, co′le·opter·ous (-tər-əs) adj.