title: Population cytology of the genus Phaulacridium. II. Phaulacridium marginale (Walker); chiasma frequency studies from South Island, New Zealand.
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001699:Biometry; D002869:Chromosome Aberrations; D002875:Chromosomes; D003434:Crossing Over, Genetic; D004777:Environment; D005828:Genetics, Population; D006110:Grasshoppers / Q000033:anatomy & histology; D007621:Karyotyping; D008297:Male; D008540:Meiosis; D009520:New Zealand