Diabrotica speciosa

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Diabrotica speciosa (click on image to enlarge it)
Authors: Guillermo Cabrera Walsh et al.
Source: Insects (2020), vol. 11 (7), p. 2

Diabrotica speciosa (Germar, 1824) - (South American rootworm)

This beetle is found in most parts of South and Central America, but is absent in Chile, western Peru, as well as western and southern parts of Argentina. It is regarded as a polyphagous pest of several crops like potatoes, maize and groundnuts, causing chlorosis and defoliation. The adults feed on the leaves, while the larvae damage the roots and tubers. Various other crops are also attacked, including vegetables, fruit trees, legumes and grasses.

Adult beetles are around 5 mm long and typically yellowish green. Head and antennae are brownish yellow, tibiae and tarsi black, and there are 6 yellow marks on the elytra.

Vernacular names
• English: South American rootworm
• Español: vaquita de San Antonio
• Português: larva-alfinete
vaquinha-verde-amarela

For a review see Walsh et al. (2020).