https://en.wikipedia.org/wiki/Glossary_of_entomology_terms
clava Same as clavus. clavate Mainly referring to antennae, but occasionally to other anatomical features such as palps: having a clubbed shape with a relatively long, slender stem, but with a bulkier, thicker distal end, the clava.The term clavate is not strictly distinguished from capitate, but in general, where a distinction is desired, the club of a capitate antenna is abruptly distinct ...