TAXONOMIC NOTES ON THE GRISEIFRONS SPECIES-GROUP OF SIMULIUM (SIMULIUM) (DIPTERA: SIMULIIDAE) IN NORTHERN THAILAND

ABSTRACT

Two known and two new species of the <I>griseifrons</I> species-group of the subgenus <I>Simulium</I> (<I>Simulium</I>) in Northern Thailand are reported. The male, pupa and mature larva of <I>S. </I>(<I>S.</I>) <I>rudnicki</I> Takaoka and Davies, and the pupa and mature larva of <I>S.</I> (<I>S.</I>) <I>suchariti</I> Takaoka and Choochote, are described for the first time. Furthermore, two new simuliid species, <I>S.</I> (<I>S.</I>) <I>mediocoloratum</I> sp. nov. and<I> S.</I> (<I>S.</I>) <I>crocinum</I> sp. nov., both of which are very similar to <I>S.</I> (<I>S.</I>) <i>rudnicki</i>, are also described.