Meiotic male metaphase cells of Sitophilus granarius (a), S. linearis (b), S. oryzae (c) and S. zeamais (d), stained with Giemsa, showing the typical parachute association of the sex chromosomes (arrowhead) in all species, except in S. linearis. The asterisks indicate a B chromosome. Bar = 5 μm.

 
 
  Part of: Silva AA, Braga LS, Corrêa AS, Holmes VR, Johnston JS, Oppert B, Guedes RNC, Tavares MG (2018) Comparative cytogenetics and derived phylogenic relationship among Sitophilus grain weevils (Coleoptera, Curculionidae, Dryophthorinae). Comparative Cytogenetics 12(2): 223-245. https://doi.org/10.3897/CompCytogen.v12i2.26412