Pseudomorychus mixtus is a weevil in the genus "Pseudomorychus", a pill beetle in the subfamily Byrrhinae of the family Byrrhidae. Distribution. This beetle is endemic to Australia and occurs in South Australia, Tasmania and Victoria." Appearance. This species is a small black weevil measuring less than 1 mm. It is black in appearance with a rounded abdomen. The entire insect is covered in long fine hairs except for its finely broken up antennae. Records. The only known photographed record is a live record taken via iNaturalist observation by Blake Pimm.