Morphological comparison between a pair of wing-pigmented and non-pigmented sibling species of the genus Hirtodrosophila (Diptera: Drosophilidae), with description of a new species from Western Himalaya

Hirtodrosophila fascipennis (Okada, 1967) and its closely related species, Hirtodrosophila pellucidipennis Bhardwaj, Khan & Fartyal, sp. nov., have been found in sympatry from Western Himalaya, India, and the latter is described here with detailed morphological comparison to the former. The most distinctive characteristic is that, while H. fascipennis has a distinct pattern of pigmentation on its wings, the new species lacks such wing pigmentation.