This work was carried out in a plantation located in Macano, Boqueron, Chiriqui, Republic of Panama, with the purpose of identifying the insects associated to pigeon pea crop and the organs they affect. From March to December 2010, 20 samples from the vegetative growth phase to the production phase were taken. By means of an entomological net, insects associated or that may caused some crop damage in pigeon pea plants were collected, 50 in each sampling. 197 individual associated with the pigeon pea belonging to 24 genera (plus seven undetermined), 21 families and six orders of the Class Insecta were collected. Nodonota, Diphaulaca (Coleoptera: Chrysomelidae) and Trigona (Hymenoptera: Apidae) were the most abundantin the foliage, Trigona was the outstanding during the flowering stage and Ectatomma and Crematogaster (Hymenoptera: Formicidae) were found in the stem, probably associated with some membracids. Melanagromyza obtusa (Diptera: Agromyzidae) and Etiella zinckenella (Lepidoptera: Pyralidae) were found in the pigeon pea pods and Bracon (Hymenoptera: Braconidae) raised pods infested with larvae and pupae of M. obtusa.