ABSTRACT Pitaya (Selenicereus spp.) is a tropical fruit tree belonging to the Cactaceae family, native to the tropical regions of Central and South America. Your cultivation has been considered promising due to its organoleptic characteristics and its high acceptance in the market. However, little information is available about pests associated with pitaya in northeastern Brazil. Here, we aim to communicate the identification and record of the occurrence of a pest insect in a pitaya plantation in the Caatinga. Caterpillars of this lepidopteran were collected from parts of pitaya plants, in January 2021, in the municipality of São João do Cariri, PB (7° 23'27” S, 36°31'57” W), placed in plastic containers and transported to the Invertebrates Laboratory of the Biosciences Department at the Agricultural Sciences Center of the Federal University of Paraíba, in the municipality of Areia, PB. Under laboratory conditions, the caterpillars were fed with pitaya shoots and kept in an environment with controlled conditions of temperature and humidity. When they reached the pupal stage, they were transferred to a cage and kept until the adults emerged. Identification of the adult was carried out by a specialist, by comparison with specimens from the Reference Collection of the Laboratory of Ecology and Interactions of Insects of the Caatinga (CLEIIC), belonging to the Federal University of Campina Grande, Patos, PB. The lepidopteran is Aricoris campestris (Bates, 1868), belonging to the Riodinidae family, Nymphidiini tribe, which also attacks other cacti in the region and has already been recorded in other areas in northeastern Brazil. Selenicereus spp. spp family America market However Brazil Here plants 2021 Cariri 7° 7 (7 2327 23 27 23'27 S 36°3157 363157 36°31 57 36 31 36°31'57 W, W , W) Paraíba Areia humidity stage emerged specialist CLEIIC, CLEIIC (CLEIIC) Grande Patos Bates, Bates (Bates 1868, 1868 1868) tribe 202 ( 232 2 23'2 3157 36°315 36315 3631 36°3 5 3 36°31'5 (CLEIIC 186 20 23' 315 363 36° 36°31' 18 1

RESUMO A pitaya (Selenicereus spp.) é uma frutífera pertencente à família das cactáceas, nativa das regiões tropicais da América Central e do Sul. O cultivo dessa fruta vem sendo considerado promissor devido às características organolépticas e sua alta aceitação no mercado, que desperta o interesse dos produtores. No entanto, há poucas informações disponíveis sobre pragas associadas à pitaya no nordeste brasileiro. Assim, objetivou-se nesse estudo divulgar a ocorrência de Aricoris campestris em um plantio de pitaya na Caatinga. As lagartas desse lepidópetero foram coletadas diretamente de partes das plantas de pitaya, no mês de janeiro de 2021, no município de São João do Cariri - PB (7°23’27” S, 36° 31’57” W), com auxílio de uma pinça, acondicionadas em recipientes plásticos e transportadas para o Laboratório de Invertebrados do Departamento de Biociências no Centro de Ciências Agrárias da Universidade Federal da Paraíba, no município de Areia - PB. No laboratório, as lagartas foram alimentadas com brotos de pitaya e mantidas sob condições controladas de temperatura e umidade. Ao atingirem a fase de pupa, foram transferidas para uma gaiola de criação, enquanto aguardou-se a emergência dos adultos, para posterior identificação. A identificação do adulto foi realizada por especialista, por comparação com exemplares da Coleção de referência do Laboratório de Ecologia e Interações de Insetos da Caatinga (CLEIIC), Universidade Federal de Campina Grande, Patos, PB. O lepidóptero trata-se de Aricoris campestris (Bates, 1868), pertencente à família Riodinidae, tribo Nymphidiini. Selenicereus spp. spp cactáceas Sul mercado produtores entanto brasileiro Assim objetivouse objetivou se 2021 7°2327 72327 7°23 27 7 23 (7°23’27 S 36 3157 31 57 31’57 W, W , W) pinça Paraíba laboratório umidade pupa criação aguardouse aguardou adultos especialista CLEIIC, CLEIIC (CLEIIC) Grande Patos tratase trata Bates, Bates (Bates 1868, 1868 1868) Riodinidae Nymphidiini 202 2327 7°232 7232 723 7°2 2 (7°23’2 3 315 5 31’5 (CLEIIC 186 20 232 72 7° (7°23’ 31’ 18 (7°23 1 (7°2 (7° (7 (

Every year, Brazil receives large flocks of nearly 40 migratory shorebirds species. The accumulation of body fat and nutrients during the summer is necessary for the long return flights of these birds and is fundamental for feather moulting and the change of their plumage. We present here an examination of the relationship between body mass and plumage change in Arenaria interpres (Linnaeus, 1758), one of those birds, over time during its wintering period on the Brazilian coast. We analyzed information collected at five traditional stopover sites along the Brazilian coast, between 1997 and 2007. During the month of September, individuals with intermediate or breeding plumage had smaller body masses as compared to other months. From October to December, adult individuals were only observed with eclipse plumage and had average body masses of approximately 100 g. In March, individuals with intermediate, eclipse and breeding plumages were recorded, but their average body mass remained at approximately 100 g. In April and May the numbers of individuals with breeding or intermediate plumage increased, and they showed significant increases in body mass at a rate of approximately 1.5 and 2.3 g per day, in the north-northeastern and south coast, respectively, leading to an average mass of 124 and 143g in these months. That is suggested to be the departure mass of A. interpres in the Brazilian north-northeastern and south coast, respectively, when starting the migration to the breeding sites.