Dicranomyia aegrotans

Dicranomyia aegrotans is a species of crane fly in the family Limoniidae. It is endemic to New Zealand.

Taxonomy
The species was first mentioned by Francis Walker in 1848, naming the species Limnobia aegrotans but not providing a sufficient description. In 1924, Charles Paul Alexander described the males of the species. The species has also been described as Limonia (Dicranomyia) aegrotans.

Description
Edwards described the species as follows:

"♀. Head heavily dusted with light ash-grey; front apparently about one-fifth as broad as head. Proboscis and palpi dark-brown, about half as long as head. First antennal joint grey-dusted, remainder blackish; flagellar joints rounded, the last six or seven shortly oval; verticils slightly longer than joints. Thorax brown, heavily dusted with pale grey; praescutum with three stripes of brown ground-colour. Abdomen dark brown, last segment and ovipositor reddish. Anal valves of ovipositor slender, curved, slightly shorter than last segment; genital valves somewhat narrowed on apical half. Legs rather light brown, tips of femora slightly darker. Wings rather narrow, with slight milky tint; base of wing and veins Sc and R white, the rest dark; Cu slightly clouded; stigma dark brown, small, roundish, bisected by the cross-vein. Sc1 ending slightly beyond the base of Rs, scarcely twice as long as Sc2, which is oblique. Rs gently curved, about twice as long as basal section of R4 + 5 and nearly two-thirds as long as R2 + 3. A distinct fold crossing the r-m cross-vein. Discal cell fully twice as long as broad, open to cell M1 on one wing. Halteres light ochreous."

The species body is 5 millimetres long, with a wing length of 6 millimetres.

Distribution
The species is found widely across New Zealand, and in the Kermadec Islands.