In Mexico, cultivation of jackfruit (Artocarpus heterophyllus Lam.) has an annual output of 14 118 t spread over an area of 962 ha (^{SIAP, 2013}). Volume and extension, the state of Nayarit is the largest producer by concentrating more than 80% of national production with 13 221 t (^{Luna et al., 2013}). However, the tropical climate of the state, favors the proliferation of pests that affect the quality and quantity of production, which include several species of aphids, scales, mealybugs and borers (^{Nova and Arrambide, 1994}; ^{Crane and Balerdi, 2000}). So far, the most common method for controlling these pests is the application of chemicals, causing problems such as ecological imbalance, the emergence of secondary pests and declining natural enemies (^{Milan et al., 2008}).

Faced with this problem and because of the limited information from those authorized for the crop insecticides, currently it seeks to establish a biological control of these pests by using coccinellids predators. Globally they have described 6 000 species of ladybirds, within which in Mexico have been registered 200 species (^{Gordon, 1985}). The importance of this group is that both larvae and adults of most species are predators of phytophagous insects and mites. However, the study of their diversity and distribution as biological control agents is poorly studied (^{Marin and Bujanos, 2008}), so there is significant potential to increase the diversity of species that could be of great importance for the integrated management pests in the country (^{Lopez et al., 2007}). Therefore, in the present work it is recorded for the first time for the state of Nayarit, Mexico the Scymnobius bilucernarius Mulsant specie in the cultivation of jackfruit.

The specimens were collected in April 2014 in an orchard of jackfruit in the municipality of Compostela, Nayarit located at 21° 10' 13.41'' north latitude and 105° 09' 36.08'' west longitude with an elevation of 24 m. It was used as a sampling technique, the demolition (^{Cambero et al., 2010}), where a blanket of 3 x 3 m below the canopy of five trees at random in the aforementioned garden was placed, previously sprayed with permethrin (84 cc 35% permethrin in 15 L of water) and was allowed to act for 30 min insecticide. Harvested insects were placed in transparent plastic bottles with 70% ethyl alcohol. The biological material obtained was taken to the Laboratory of Agricultural Parasitology of the Academic Unit of Agriculture of the Autonomous University of Nayarit, to separate from the rest of other coccinellids insects collected, and then proceed to assembly and identification. The determination of the species, is under the criteria ^{Mulsant (1850)} and taxonomic keys ^{Gordon (1985)} and ^{Gonzalez (2006)}. Confirmation of the species was carried out by the specialist group in South America entomologist William F. González.

Scymnobius bilucernarius is a neotropical species described by ^{Mulsant (1850)} as Scymnus bilucernarius and later by ^{Gorham (1897)} as Scymnus pictus. According to ^{González (2014)}, this species is distributed in Colombia, Guyana, Venezuela, West Indies, Central America and Mexico without specifying the location. This paper was first registered for Nayarit. According to ^{Gordon and Gonzalez (2002)}, Trinidad and Tobago, S. bilucernarius possibly a predatory species of Aleurodicus maritimus and A. pulvinatus (Hemiptera: Aleyrodidae) and Venezuela of Dismicoccus boninsis (Hemiptera: Pseudococcidae).

Material examined: Mexico: Nayarit, Municipality of Compostela, Las Varas, 28-IV-2014; 2 ♀ and 1 ♂ in Artocarpus heterophyllus. Col. Marcia Rodríguez Palomera. Specimens deposited in the collection of the Academic Unit of Agriculture, University of Nayarit and in the private collection of Guillermo González, Santiago, Chile (CPGG).

Description: length of 1.4 to 2.1 mm, oval shape. Head and pronotum reddish-brown, elytra black, with a clear mark on each subsequent fifth or yellowish. Abundant pubescence and deciduous dorsal gray.