Robert B Angus and R.L. Beauchamp (2006) A chromosomal analysis of the four British ladybirds of the subfamily Coccidulinae (Coleoptera: Coccinellidae). Proceedings of the Russian Entomological Society, 77 (). pp. 18–27.
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The karyotypes of the four British species of the ladybird subfamily Coccidulinae are described and illustrated. Both Coccidula rufa (Herbst) and C. scutellata (Herbst) have nine pairs of autosomes and sex chromosomes which are Xyp (♂), XX (♀), with minor differences in their sequences of Relative Chromosome Lengths and in the C-banding patterns. Rhyzobius chrysomeloides (Herbst) has eight pairs of autosomes and sex chromosomes which are Xyp (♂), XX (♀), but Rh. litura (F.) has seven pairs of autosomes and sex chromosomes which are Neo-XY (♂), neo-XX (♀). The small but clear differences between the karyotypes of the two Coccidula species are as expected for similar members of a small fairly uniform genus. However, the difference between the karyotypes of the two Rhyzobius species could not have been foreseen and is discussed.
This is a Draft version This version's date is: 2006 This item is peer reviewed
https://repository.royalholloway.ac.uk/items/49e4c253-26ea-4c8b-ab5c-86e0b29e2f32/1/
Deposited by Al Dean (ZSRA118) on 22-Mar-2010 in Royal Holloway Research Online.Last modified on 22-Mar-2010
(C) 2006 Zoological Institute of Russian Academy of Sciences, whose permission to mount this version for private study and research is acknowledged. The repository version is the author's final draft.
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