Studies on the Spermatogenesis of Some Indian Homoptera Part II

Chromosomes of the Sugarcane Leaf Hopper-Pyrilla perpusilla Wlk (Fulgoridae)

抄録

1. The diploid number in the male species is 27 (26 autosomes plus X-chromosome).
2. The X-chromosome is always outside the group of autosomes. A distinct tendency for lagging in anaphase I is noticed in the X-chromosome.
3. The presence of large autosomes (macrochromosomes) is recorded.
4. A brief discussion on the systamatics of Pyrilla is given.