Alurnus grossus Fabricius, 1775

Rendón-Ramírez, Alejandra, Vergara-Navarro, Erika Valentina & Quiroz-Gamboa, John Alveiro, 2024, The genus Alurnus Fabricius, 1775 (Chrysomelidae: Cassidinae: Alurnini) in Colombia with four new species records and an updated checklist in the country, Zootaxa 5551 (1), pp. 116-130 : 122

* Alurnus grossus Fabricius, 1775

( Fig. 8 )

Hispa grossus Berge, 1844

Crioceris indica Voet, 1806

Alurnus tricolor Olivier, 1789

Alurnus grossus nigricans Jacobson, 1899

Diagnosis. Antennal scape subglobose, equal in length than pedicel. Vertex of head finely punctate; without medial sulcus or carina; front and clypeus punctate. Pronotum with posterior angle with strong tooth. Elytra yellow, glabrous, with black spots on humeral calli. Tibia constricted near apex; with a line of setae on inner apical margin ( Staines 2013).

Material examined. COLOMBIA: Valle del Cauca, Calima, forest, xii. 1960. Coll. R . Vélez, (1ex.) [MEFLG-6276], Río Calima , quebrada el Pital, 12.xi.1980. Coll. R . Torres , (2 exs.) [ MHN-UPN] .

Measurements: n= 3. 28.33mm ±1,52mm

Plant associations. None found.

Distribution. Alurnus grossus is a new record for Colombia. Previously recorded for Brazil, Ecuador, French Guyana, Peru, Suriname ( Staines 2015).

Comments. In the species key and redescription, it is mentioned that the pronotum is red; however, we record two specimens with a black pronotum.

Figures

FIGURES 7–10. Dorsal view Alurnus species from Colombia.7. Alurnus costalis Rosenberg, 1898. 8. Alurnus grossus Fabricius, 1775. 9. Alurnus horni Uhmann, 1935. 10. Alurnus humeralis Rosenberg, 1898 (eggs and pupae). Scale bars: 10 mm.