Kalmar "genus Blissus" tana nufin rabe-raben kimiyya na kwari da ke cikin dangin Blissidae. Mambobin wannan jinsin ana kiransu da suna chinch bugs kuma an san su da zama kwari na nau'ikan amfanin gona iri-iri, gami da hatsi, ciyawa, da waken soya. Chinch kwari ƙanana ne, baƙi da fari kwari masu fuka-fuki waɗanda ke ciyar da ruwan tsiro, suna haifar da lalacewa ga ganye da masu tushe na shuka. Halin halittar Blissus ya ƙunshi nau'ikan ƙwayoyin chinch da yawa waɗanda aka rarraba a cikin Arewacin Amurka da Kudancin Amurka.