Naupactus cervinus differentiates from other Naupactus because of the brown scaly vestiture, with one oblique white stripe on middle length of elytra, from margin to 5º interval. The rostrum is conical, the eyes strongly convex, the pronotum subcylindrical, the elytra eval with straight base, lacking humeri and with lines of erect white setae on the posterior third of the uneven intervals; the corbels of the hind tibiae are absent.
First instar and mature larvae were described by Marvaldi & Loiácono (1994) and Marvaldi (1998) (called A. godmanni in those papers).
It biology was studied by Woodruff & Bullock (1979) and Coats & McCoy (1990), among other authors. Guedes & Parra (2004) studied its oviposition habits. Males are unknown for most populations (Lanteri 1986) which include only parthenogenetic females, infected with the bacterium Wolbachia, that induces parthenogenesis in several Naupactini (Rodriguero et al. 2010a b). The genetic variability is very high in its original area of distribution (Rodriguero et al. 2013).
Several natural enemies are known for this weevil, e.g. nematodes (Steirneinema carpocapsae (Weiser), Heterorhabditis sp), fungi (Bauveria bassiana (Bals.), Metarhyzium anisopliae (Metschnikoff)) and parasitic wasps, as Fidiobia citri (Nixon) (Platygastridae) and Microctonus sp (Braconidae) (Rodriguero et al. 2014).
Commonly known as “fuller’s rose weevil” (USA), “capachito de los frutales” or “gusano de las rosáceas” (Chile), because of the damage caused in ornamental and fruit plants. In Argentina is harmful for Citrus sp (Rutaceae), alfalfa Medicago sativa L. (Fabaceae), garden and fruit plants, mainly of the family Rosaceae, e.g. Prunus spp, Fragaria, spp, Rosa spp (Lanteri 1994, Lanteri et al. 2002a, del Río et al. 2010).
Citrus spp are main hosts in Brazil (Lanteri et al. 2002b, Guedes et al. 2005), Australia (Chadwick 1965), and USA (California and Florida states) (McCoy et al. 2006). Other hosts are Phaseolus spp (Fabaceae), Solanum tuberosum L. (Solanaceae), Hibiscus (Malvaceae), Passiflora edulis Sims. (Passifloraceae), Gardenia (Rubiaceae), Begonia (Begoniaceae), Rhododendron (Ericaceae), Lilium (Liliaceae), etc. It is highly polyphagous.