Species name

Diabrotica underwoodi Bowditch 1911: 95


Type locality

San Jose, Costa Rica


Type depository

MCZ, holotype, male, verified



Body length 6.7-7.2 mm. Body width 3.1-3.5 mm. Head basic color black. Antennae filiform, bi- or tricolored, antennomeres 1-3 yellow, antennomeres 4-8 cinnamon brown, antennomeres 9-11 light cadmium. Maxillary palpi black or chestnut, labrum black. Pronotum yellow or mustard yellow, quadrate, weakly bifoveate, with wide shallow foveae, not shagreened. Scutellum black or amber brown. Elytra yellow or rufous, vittate with two black lateral vittae and two black vittae on elytral disk reaching almost elytral apex; there is usually a short sutural vitta. Elytral epipleura completely yellow, sutural angle of elytra round, punctation dense, fine. Abdomen yellow. Legs yellow. Aedeagus symmetric, with five internal sac sclerites.


Known distribution

Costa Rica


Host plants



Potential problems with identification

Diabrotica underwoodi Bowditch is similar to D. curvilineata Jacoby, D. c1n and D. pl1n. They can be separated by the following features: head is black in D. underwoodi, but yellow in D. curvilineata and D. c1n; scutellum is black or amber brown in D. underwoodi, but yellow in all other species; tibiae are yellow in D. underwoodi, but black in D. curvilineata and D. c1n; antennae are filiform in D. underwoodi, serrate or moniliform in D. pl1n.