Nur, U. 1970 Translocations between eu- and heterochromatic chromosomes, and spermatocytes lacking a heterochromatic set in male mealybugs.. Chromosoma. Berlin 29: 42-61.

Notes: Irradiated Pseudococcus obscurus first instar males carried translocations between E & H chromosomes in their spermatocytes; the segregation of these translocations is described.