Alurnus humeralis Rosenberg 1898

Alurnus humeralis Rosenberg, 1898 (Fig. 10) Alurnus forticornis Weise, 1910 Alurnus maximus Jacobson, 1899 Alurnus saundersii humeralis Jacobson, 1899 Diagnosis. Antennal scape and pedicel cylindrical. Pronotum glabrous, with rounded tooth in anterior angle and acute tooth in posterior angle, lateral margin bisinuate. Elytra yellow with black spot on humeral calli and a black spot on middle region (Staines 2013). Material examined. COLOMBIA: Nariño, Chachagüí, i.1972, Coll.A. Palacio, (1ex.) [MEFLG]. Tumaco, 2m, coconut and palms, viii.1967. Coll. Jiménez, (9 exs.) [MEFLG-3116]. Ricaurte, 8.i.2000. Coll. G. Velásquez (1ex.) [MHN-UPN]. Tumaco, 2m, hand collecting, peach palm strains, v. 1996. Coll. R. Delgado, (1ex.) [MEFLG-7164]. Tumaco, african palm, v.1961. Coll. Raigosa, (1ex.) [CTNI-1560]. Tumaco, Estación experimental La Providencia, african palm. 4.ii.2013. Coll. C. Sendoya, (1ex.) [CENIPALMA]. Measurements: n= 6. 31.77mm ± 1.20mm Plant associations. Elaeis guineensis Jacq. (Arecaceae —Palmae)—african palm; Cocos nucifera L. (Arecaceae)—coconut; Bactris gasipaes Kunth (Arecaceae)—peach palm. Literature review suggests association with Astrocaryum chonta Mart. (Arecaceae) (Staines, 2013). Distribution. Ecuador, Peru, Bolivia, Colombia (Putumayo) (Merino & Vásquez 1963; Staines, 2013; Zambrano 2015). New Colombian record: Nariño.