Species name

Diabrotica speciosa speciosa Germar 1824: 602 as Galeruca


Common name

Cucurbit beetle, chrysanthemum beetle, San Antonio beetle


Type locality



Type depository

SDEI, lectotype, female, verified



hexaspilota Baly 1886b: 228 (type locality: Ubaque, Colombia; type depository: BMNH, lectotype, female, verified)

simoni Jacoby 1889: 280 (type locality: Colonia Tovar, Venezuela; type depository: MNHN, lectotype, female, verified)

prasina Dejean 1821: 118 as Galleruca (nomen nudum)

prasina Dejean 1837: 404 (replacement name for speciosa Germar 1824: 602)

simulans Baly 1886b: 222 (type locality: Eastern Colombia; type depository: BMNH, lectotype, female, verified)



Body length 4.7-5.4 mm. Body width 2.5-3.2 mm. Head basic color yellow. Antennae filiform, bi- or tricolored, antennomere 1 pale olivine, antennomeres 2-3 yellow, upper sides darkened, antennomeres 4-11 cinnamon brown. Maxillary palpi and labrum black or chestnut. Pronotum paris green or green, subquadrate, bifoveate, with small round foveae, not shagreened. Scutellum piceous or black. Elytra green, maculate, with three fuzzy-edged transverse yellow ocher maculae on each elytron. Elytral epipleura completely green, sutural angle of elytra round, punctation scattered, fine. Abdomen pale olivine. Tarsi and tibiae black or piceous, femora pale olivine. Aedeagus symmetric, with three internal sac sclerites.


Known distribution

Central and South America from Mexico to Argentina


Host plants

Lactuca serriola L., Solanum tuberosum L., S. sisymbrifolium Lamk., Lycopersicon esculentum Mill., Phaseolus L., Helianthus annuus L., Cucurbitaceae (Wilcox, 1972)


Potential problems with identification

Diabrotica speciosa speciosa (Germar) can be separated from other subspecies by the following features: head is yellow or rufous in D. speciosa speciosa, while black in D. speciosa amabilis; medium and apical maculae in D. speciosa speciosa are largebig and transverse, they reduced to the small yellow spots in D. speciosa vigens. Diabrotica speciosa speciosa is similar to D. hilli Krysan & Smith, D. linsleyi Krysan & Smith and D. viridula (Fabricius). Elytra are smooth in D. speciosa speciosa, but distinctly sulcate in all other species. Internal sac armament is quite different in all similar species.