Alurnus bicolor Staines, 2013

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 : 119

Alurnus bicolor Staines, 2013

( Fig. 2 )

Diagnosis. Antennal scape subglobose, slightly longer than pedicel. Vertex of head striate-punctate, with medial carina. Clypeus punctate and setose. Scutellum black with reddish border. Elytral surface punctate-striate; anterior middle reddish; posterior middle yellowish; with some black spots along the elytra ( Staines 2013).

Material examined. COLOMBIA: Antioquia, Frontino, Corregimiento Murrí , 1317m, forest, iv.1982. Coll. E. Acevedo, [MEFLG-6278]. Urabá, x.1974. Coll. J.G.S, (1ex.) [MEFLG-6278] . Chocó, San José del Palmar, 700m, leaf litter, 23.iii.2005. Coll. Cristobal Ríos, (1ex.) [IAvH-E]. San José del Palmar, Los Guaduales , 700m, iii.1980. Coll. R. Jaramillo, (4exs.) [ICN-E-190, 1807, 3139, 3140]. Quibdó, Corregimiento Tutunendó, Punto cara de perro, hacienda Buenos Aires-Tella, 347m, UV trap, Bp-T bosque entresacado, 16–26.i.2019. Coll. J.C Neita, (1ex.) [IAvH-E]. Valle del Cauca, Buenaventura, peach palm leaves, x.1991. Coll. R. Millán, (2exs.) [ CTNI 1561 ]. Buenaventura , Corregimiento Bajo Calima , xi.1962. Coll. F.L Gallego, (1ex.) [MEFLG-6278]. Buenaventura , Calima , forest, 1486m, xi.1960. Coll. R. Vélez, (1ex.) [MEFLG-6278]. Río Anchicayá , 8.vii.1982. Coll. R. Danubio, (1ex.) [MEFLG-6281]. Buenaventura, 40m, 2.vi.1994. Coll. N. Carrejo, (1ex.) [MUSENUV-6393]. Buenaventura, 300m, 17.iii.1994. Coll. C.S. (1ex.) [MUSENUV-6391]. Buenaventura, Bajo Anchicayá, 270m, 30.viii.1991. Coll. MCG. (1ex.) [MUSENUV-6388]. Cali, 1000m, 5.viii.1993. Coll. C.S. (1ex.) [MUSENUV-6386].

Measurements: n= 16. 38.75mm ± 1.13mm

Plant associations. Bactris gasipaes Kunth ( Arecaceae )—peach palm. Literature review suggests association with Chamaedorea sp. ( Arecaceae ) ( Staines 2013).

Distribution. Panamá; Colombia: (Quindío) ( Staines 2013). New records in Colombia: Antioquia, Chocó, Valle del Cauca.

Figures

FIGURES 1–6. Dorsal view Alurnus species from Colombia. 1. Alurnus batesii Baly, 1864. 2. Alurnus bicolor Staines, 2013. 3. Alurnus bipunctatus Olivier, 1792 (Photo taken of Staines, 2013). 4. Alurnus boucardi Rosenberg, 1898. 5. Alurnus chapuisi Uhmann and Jolivet, 1952. 6. Alurnus chocoensis Pardo-Locarno & Constantino, 2023 (Photo taken by Santiago Paredes, MUSENUV). Scale bars: 10 mm.