Kalmar “class” a ilmin halitta tana nufin matsayi na harajin da ake amfani da shi wajen tara halittu masu irin wannan halaye. "Hexapoda" wani yanki ne na phylum Arthropoda, wanda ya hada da kwari da wasu arthropods masu ƙafa shida. Saboda haka, kalmar “Class Hexapoda” tana nufin ajin haraji na kwari, wanda ya haɗa da halittu kamar tururuwa, beetles, butterflies, da kwari.
