We present surveys of derbid planthoppers associated with coconut (Cocos nucifera L.) and oil palm (Elaeis guineensis Jacq.) collected in Northeastern (Sergipe) and North (Pará and Roraima) Brazil. The surveys were intended to contribute to our knowledge of possible vectors of phytoplasmas or other phloem-restricted plant pathogens. Eight derbid taxa were found, two in the subfamily Cedusinae, tribe Cedusini (Cedusa yipara Kramer and C. yowza Kramer) and six in the subfamily Derbinae, tribe Cenchreini: Herpis sp., Persis pugnax Stål, Omolicna anastomosa (Caldwell), O. nigripennis (Caldwell), and two new species in the genus Agoo Bahder & Bartlett are described here. Genus-level features between Omolicna and Agoo are discussed and a key to the species of Agoo is provided.

我们对在巴西东北部（塞尔希培）和北部（帕拉和罗赖马）收集的与椰子（ Cocos nucifera L.）和油棕（ Elaeis guineensis Jacq.）相关的沙蝇飞虱进行了调查。这些调查旨在增进我们对植原体或其他韧皮部限制的植物病原体的可能载体的了解。发现了八个德科类群，其中两个属于 Cedusini 部落 Cedusinae 亚科（ Cedusa yipara Kramer 和C. yowza Kramer），六个属于 Cenchreini 部落 Derbinae 亚科： Herpis sp.、 Persis pugnax Stål、 Omolicna anastomosa (Caldwell)、 O.这里描述了nigripennis (Caldwell) 和Agoo Bahder 和 Bartlett 属的两个新种。讨论了Omolicna和Agoo之间的属级特征，并提供了Agoo物种的关键。