Chromosomal evidence for a new cryptic species of black fly in the complex (Diptera: Simuliidae) from West Bengal, India.

Analyses of polytene chromosomes revealed a new cryptic species of black fly, Simulium praelargum "IL", in the Simulium (Nevermania) feuerborni group from Darjeeling, West Bengal, India. This new species occurred sympatrically with two other previously recognized species in the S. praelargum complex: Simulium praelargum Datta sensu stricto and Simulium praelargum "IIIL-1.

Heterochromatin and sibling species of Simulium praelargum s.l. (Diptera: Simuliidae).

Cytological descriptions are given for two sympatric sibling species, Simulium praelargum IIIL-st and Simulium praelargum IIIL-1.2, from Darjeeling, West Bengal, India. Sibling IIIL-1.