The chiasma distribution patterns of 4 Acridinae species were studied. The preliminary results show that inParga xanthopterathe chiasmata are mostly located in the distal and proximal regions of the bivalents. Due to a relatively high frequency of bivalents with 2 chiasmata, the chiasma frequency was relatively high (15.8/cell).Gymnobothrus cruciatus, Machaeridia bilineataandCannula gracilisall show proximal localization in the 8 longer chromosome pairs. Chiasma distribution in the 3 smaller pairs seemed to be random. OneC. gracilisindividual was also heterozygotic for an extra heterochromatic supernumerary segment on the distal end of chromosome 11. This caused a redistribution of chiasmata in the carrier bivalent as well as an increase in chiasma frequency. The mean cell chiasma frequency forG. cruciatuswas 11.00, forM. bilineata11.13, forC. gracilis(basic karyotype) 12.06 and for the individual with the extra segment 13.86.