Lyddastrombus is a small genus of planthoppers from the family Derbidae, tribe Zoraidini, currently (2024) with 8 African species.

Lyddastrombus was original described as a subgenus of Diostrombus, but it is now regarded as a separate genus, due to the broader head.

[7] Type species: Diospolis annetti Muir, 1918, a synonym of Lyddastrombus annetti[1] The species of Lyddastrombus can be distinguished from other similar genera of the tribe Zoraidini (like the genera Lydda, Diostrombus and Proutista) by a combination of different characters on the head and the wings, as well by the structure of the aedeagus in males.

One image of Lyddastrombus mayumbensis (labelled Diostrombus mayumbensis, a synonym name) suggests that the wings are raised above the body and are spread out at an angle of 45-60° when the insects are at rest, similar to species of Lydda, Diostrombus and Proutista.

[9] This image also suggests that live specimens of L. mayumbensis are basically light yellowish green with some straw-coloured parts and some brownish-black marks on thorax and abdomen.

[15][16] The adult hoppers of 6 Lyddastrombus species have been reported to feed on coconut and oil palms in West Africa (Sierra Leone and Ghana).

[8][14] The observations in Ghana were part of studies attempting to identify the vector of a coconut phytoplasma disease.