Kutevera ndekumwe kudhinda sirika kwatakaitira vatengi vedu, sezvauri kuona, kudhinda sirika kazhinji mune 1-3 mavara, uye maviri mavara ane chinhambwe. Chinhambwe chinowanzopfuura 3mm.
Sirika inodhinda inokumbira bhodhoro/chirongo chepamusoro chakatsetseka, chakapfava, taigona kuita tembiricha yesilika yekudhinda (iyo nguva yekuchengeta irefu, asi ruvara rwakareruka zvishoma) uye yakaderera tembiricha sirika kudhinda (inotaridzika kupenya).