ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Accepted by J. Jennings: 11 Sept. 2019; published: 9 Oct. 2019 439 Zootaxa 4683 (3): 439–446 https://www.mapress.com/j/zt/ Copyright © 2019 Magnolia Press Article https://doi.org/10.11646/zootaxa.4683.3.8 http://zoobank.org/urn:lsid:zoobank.org:pub:76DBD52B-44F6-43DE-AAA2-7D69BC0FB6AE Pimpla Fabricius (Hymenoptera: Ichneumonidae: Pimplinae) from Colombia DIEGO G. PÁDUA¹, RODRIGO O. ARAUJO 2,3,5 & LUIS A. MAZARIEGOS 4 1 Programa de Pós-Graduação em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil. 2 Centro de Investigación de Estudios Avanzados del Maule, Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Avenida San Miguel, 3605, Talca, Chile. 3 Laboratorio de Ecología de Abejas, Departamento de Ciencias Biológicas y Químicas, Facultad de Ciencias Básicas, Universidad Católica del Maule, Avenida San Miguel, 3605, Talca, Chile. 4 The Hummingbird Conservancy, Mesenia-Paramillo nature reserve, Colombia. 5 Corresponding author. E-mail: araujorodrigodeoliveira@gmail.com Abstract Pimpla Fabricius is one of the largest genera within the subfamily Pimplinae, whose species are idiobiont endoparasitoids of Lepidoptera pupae and prepupae. A total of 13 species are known from Colombia, but they are difficult to identify because of their morphological complexity. Herein we record for the first time in Colombia the following species: P. albomarginata Cameron, P. caerulea Brullé and P. sumichrasti Cresson. Furthermore, we present the first identification key to female and male of the Colombian species, along with diagnoses, biological notes and images in vivo. Key words: Ichneumonoidea; Parasitoid wasps; Andean mountains; Neotropical; New World Introduction Pimplinae (Hymenoptera: Ichneumonidae) is a biologically diverse family with different strategies of specializa- tion regarding the type of hosts and parasitism: they can be koinobiont ectoparasitoids, egg predators or idiobionts endo- or ectoparasitoids (Quicke, 2015). Currently, this subfamily has 77 genera and approximately 1,800 species distributed worldwide of which 12 genera and 45 species are registered for Colombia (Yu et al., 2012). Pimpla Fabricius, 1804 is one of the largest genera within Pimplinae, with more than 200 valid species (Yu et al., 2012), represented in all continental regions except Australasia (Gauld et al., 1998). From the few available biological records, it is known that some species are idiobiont endoparasitoids of lepidopteran pupae and prepupae concealed in leaf litter, moss and leaf rolls in herbaceous vegetation or soil (Gauld, 1991). Currently, this genus is represented by 13 species in Colombia (Yu et al., 2012): P. aviancae (Porter, 1970); P. azteca Cresson, 1874; P. croceipes Cresson, 1874; P. croceiventris (Cresson, 1868); P. flavipennis (Enderlein, 1919); P. golbachi (Porter, 1970); P. iothales (Porter, 1970); P. pepsoides (Porter, 1970); P. platysma (Porter, 1970); P. punicipes Cresson, 1874; P. pyramis (Porter, 1970); P. sanguinipes Cresson, 1872 and P. varipes (Porter, 1970). Herein we record for the first time, the species P. albomarginata Cameron, 1886, P. caerulea Brullé, 1846 and P. sumichrasti Cresson, 1874, expanding their distribution in the Neotropical region. There is no identification key for the Pimpla species present in Colombia, so here we propose the first such key, including both females and males. Furthermore, diagnoses of the newly recorded species and photographs in vivo are presented. Material and methods The study was conducted in the Mesenia-Paramillo nature reserve (5°29’46.1”N and 75°53’20.5”W), in the depart- ment of Antioquia, Colombia, in a conservation area of approximately 3,500 ha located in the western Andes. The reserve is located in the Northwestern Andean montane forest ecoregion which is among the most diverse regions on the planet. These ecosystems present a diverse array of distinctive biological communities, characterized by un-