Diostrombus is a large genus of planthoppers from the family Derbidae, tribe Zoraidini, with more than 40 species.

In profile the head is usually flat, but in some African species, the ridges on the sides of the face are extended in front of the antennae.

[8][9] Type species: Diostrombus politus Uhler, 1896[1] More than 80% of the species described in the genus Diostrombus are found in Africa, and the majority of these have been reported from the humid tropics of western Africa, from Guinea and Sierra Leone in the North to the Democratic Republic of the Congo in the South.

The hind wings are much shorter than half the forewing length and have a distinctive shape with a pointed tip near the frontal (costal) margin.

[19][8][9][15] The face (frons) of Diostrombus species is narrow with the ridges on its sides running approximately parallel to each other.

However, in some African species like in Diostrombus atricollis, the ridges on the side of the face are extended in front of the antennae.

[2] The adults prefer to feed on monocots like palm trees, maize or rice, like other members of the tribe Zoraidini.

In Mozambique, Diostrombus mkurangai was found to be one of the most common sap-sucking insects on coconut palms affected by the lethal yellowing disease and the causal phytoplasma agent was present in this species.

One of two coconut palms exposed to 4,380 insects from the genus Diostrombus tested positive for the disease with PCR, but failed to develop symptoms.