Revista Colombiana de Entomología 2021-09-02T12:52:05-05:00 Demian Takumasa Kondo Open Journal Systems <p><strong><em>The RCdE's</em> </strong>mission is to publish top quality scientific information resulting from research on insects and related groups from anywhere in the world. Since its foundation in 1975, it has been aimed primarily at researchers and professionals in entomology from universities and public and private research center.</p> <p><span id="result_box" class="" lang="en"><span class=""> </span></span></p> In Memoriam : HÉCTOR ARMANDO VARGAS GONZÁLEZ (1943-2021) 2021-07-28T10:06:11-05:00 James Montoya Lerma 2021-07-28T00:00:00-05:00 Copyright (c) 2021 Diversity of Andean potato weevils (Coleoptera: Curculionidae) on Potato (Solanum spp.) in Puno-Peru 2021-04-08T13:22:22-05:00 Rosario Ysabel Bravo-Portocarrero Victor Hugo Idme-Bustinza Israel Lima-Medina Grover Cornejo-Condori Victor Hugo Casa-Coila <p>The Peruvian Altiplano is considered the place of origin of the potato crop<br />(<em>Solanum</em> spp.). The Altiplano is also the center of the origin of the most important insect pests, compound by different species, called the Andean potato weevils complex (Coleoptera:<br />Curculionidae). The present study aimed to demonstrate the diversity of species of the pests in two potato-producing communities: Jallahua and Kcoriñahui, distant between them 17 km and located at altitudes between 3883 and 4093 meters above sea level (a.s.l.), in the district Pucará, Lampa, Puno. Adults of the Andean weevil were collected from potatoes plants with Barber ́s pitfall traps, then they were classified and identified by comparison with reference material from the collection of the International Potato Center (CIP) and subsequently the identifications were verified in the laboratory with a dichotomous key. Results allowed differentiating the species: <em>Premnotrypes solaniperda</em> Kuschel, <em>Cylydrorhinus</em> sp., <em>Listroderes </em><em>punicola</em> Kuschel, <em>Puranius</em> sp., <em>Rigopsidius tucumanus</em> Heller, <em>Rigopsidius piercei</em> Heller, and four unidentified species. Heterogeneity in the geographical distribution of the species was verified with <em>Premnotrypes solaniperda</em> Kuschel being the most dominant, the other species showed intermediate and lower densities and dominances.</p> 2021-11-12T00:00:00-05:00 Copyright (c) 2021 Rosario Ysabel Bravo-Portocarrero, Victor Hugo Idme Bustinza, Victor Hugo, Israel Lima-Medina, Grover Cornejo- Condori, Grover, Victor Hugo Casa-Coila Sublethal effects and costs of resistance to abamectin in diamondback moth (Plutella xylostella) (Lepidoptera: Plutellidae) 2020-12-16T16:25:01-05:00 José Francisco Rodríguez-Rodríguez Ernesto Cerna-Chávez Yisa María Ochoa-Fuentes Jerónimo Landeros-Flores Luis Patricio Guevara-Acevedo Hugo Cesar Cisneros-López <p>It is essential to understand the effects of sublethal concentrations of insecticides have on the dynamics, biology, and development of pests such as Plutella xylostella, one of the most important pests in the world. This species can develop resistance to the insecticides used for its control. In the present study, abamectin selection pressure was performed for ten generations of P. xylostella, and the sublethal concentrations (CL20) and susceptible lines of the resistance were determined. Then, these concentrations were applied to third instar larvae. In two generations it was evaluated the effect on the percentage of pupae formed, pupal weight, adult emergence, and the development times of each phase from egg to adult.</p> <p>The resistance and application of sublethal concentrations have considerable costs in the biology and development of P. xylostella by increasing the percentage of pupation from one generation to another, and a greater weight of pupae and eggs per female/day. However, it presents a transgenerational effect by reducing oviposition in its generation; in terms of development time, it presented a harmful effect by prolonging it by more than seven days, which would generate a greater number of applications per cycle.</p> 2021-08-19T00:00:00-05:00 Copyright (c) 2021 José Francisco Rodríguez-Rodríguez, Ernesto Cerna-Chávez, Yisa María Ochoa-Fuentes, Jerónimo Landeros-Flores, Luis Patricio Guevara-Acevedo, Hugo Cesar Cisneros-López Parasitoids, Braconidae (Hymenoptera) and Tachinidae (Diptera) of borers, Crambidae and Coleophoridae (Lepidoptera) of sugarcane for the production of panela in Colombia 2020-12-07T14:31:18-05:00 Zaida Xiomara Sarmiento-Naizaque Carlos E. Sarmiento Nancy Barreto-Triana <p>Sugarcane agroecosystems include natural enemies that can regulate the populations of stemborers (Lepidoptera), and this is an important role considering that biological control is the main management strategy for the crop. The goal of this research was to offer an updated list of stemborer parasitoids of sugarcane for panela from the Suárez river basin (Colombia). A total of 616 parasitoid specimens were sampled from 2015 to 2017. Out of the ten species found <em>Alabagrus albispina</em>, <em>A. imitatus</em>, <em>A. parvifaciatus</em>, <em>A. roibasi</em> (Hymenoptera:<br />Braconidae) and <em>Leskia</em> sp. (Diptera: Tachinidae) are new records for Colombia. <em>Alabagrus</em><br /><em>albispina</em>, <em>A. roibasi</em>, and <em>Leskia</em> sp. are new records for the stem borers of the crop. These species may serve as new tools for biological control in sugarcane.</p> 2021-10-15T00:00:00-05:00 Copyright (c) 2021 Zaida Xiomara Sarmiento-Naizaque, Carlos E. Sarmiento, Nancy Barreto-Triana Report of Euseius consors (Acari: Phytoseiidae) on avocado trees of Michoacan, Mexico 2020-11-06T15:43:40-05:00 Mayra Ramos Lima José de Jesús Ayala-Ortega Ma Blanca Nieves Lara-Chávez Margarita Vargas-Sandoval <p>To support the description of the diversity of Phytoseiidae mites and according to biological control, the mite Euseius consors is reported for Mexico. It was collected from avocado plants (Persea americana) in seven municipalities in the state of Michoacán, associated with Oligonychus persea (Acari: Tetranychidae), one of the most important pestmites in this crop. Hence, this scientific note is a contribution to the knowledge, the basis for the description of a potential biological control agent, and the ecosystem service that it can provide.</p> 2021-07-28T00:00:00-05:00 Copyright (c) 2021 Mayra Ramos Lima, José de Jesús Ayala-Ortega, Ma Blanca Nieves Lara-Chávez, Margarita Vargas-Sandoval Revisión taxonómica de los géneros de escarabajos tigre neotropicales de la subtribu Odontocheilina (Coleoptera: Cicindelidae) 2021-09-02T12:52:05-05:00 Anderson Arenas James Montoya-Lerma 2021-09-02T00:00:00-05:00 Copyright (c) 2021 Anderson Arenas, James Montoya-Lerma How to deal with the disadvantages of living in dense societies: traffic rules in leaf-cutting ants 2021-03-02T19:11:15-05:00 Alejandro G. Farji-Brener <p>Transporting food from production centers to consumption centers is a challenge for densely populated societies. To avoid delays, the trail system must be efficient and the behavior of the transporters must reduce the probability of collisions. This work, describes how Leaf-Cutting Ants (LCA) solve these dilemmas by optimizing their trail design and performing behaviors that avoid bottlenecks and delays. On the one hand, the LCA build trails wide<br />enough to avoid traffic jams at times of peak foraging activity. Also, at the bifurcation points, the sum of the branching trail widths is always higher than the width of the precedent trunk<br />trail. Finally, LCA builds their branching trails with angles that reduce the maintenance cost of the new trail sector or of the total trail length, depending on which factor is more limiting. On the other hand, LCA shows a range of behaviors that avoid delays: minima workers can travel on the leaf fragments thereby reducing flux density, unloaded workers remove obstacles from the trail, ants carry extra-large loads mainly during situations of low traffic, ants maintain their lane when turning, and foragers show priority rules during jam situations. These examples illustrate how ants, using simple behavioral rules that arise from positive interactions among individuals, can solve complex problems such as traffic regulation.</p> 2021-10-26T00:00:00-05:00 Copyright (c) 2021 Alejandro G. Farji-Brener Considerations on the status of the knowledge of coleopteran diversity (Arthropoda: Insecta) in Colombia 2021-01-28T16:46:46-05:00 Jennifer C. Girón Germán Amat García Juan Pablo Botero Juliana Cardona-Duque Julián Clavijo-Bustos Camila Díaz-Durán Jorge Humberto García Concha Kimberly García Wilber López Murcia Andrés Lugo de la Hortúa Jhon Cesar Neita Moreno José M. Ramírez-Salamanca Carlos Taboada-Verona Diego Uchima Taborda Alejandra Viasus-Bastidas <p>Coleoptera is one of the most diverse orders on the planet, and Colombia one of the most biodiverse countries. The combination of these two factors determines with no discussion a high concentration of species, with only partially known consequences in the country. In this work we describe the current state of knowledge about the diversity of coleopterans in Colombia, highlighting the role of entomological collections and the knowledge gaps to <br />tackle the national beetle fauna. This contribution is a starting point for coleopterologists of Colombia to begin working together towards a broader and less fragmented knowledge of the <br />natural history, systematics, ecology, and biogeography of the group.</p> 2021-08-07T00:00:00-05:00 Copyright (c) 2021 Jennifer C. Girón, Germán Amat García, Juan Pablo Botero, Juliana Cardona-Duque, Julián Clavijo-Bustos, Camila Díaz-Durán, Jorge Humberto García Concha, Kimberly García, Marcela González-Córdoba, Wilber López Murcia, Andrés Lugo de la Hortúa, Jhon Cesar Neita Moreno, José M. Ramírez-Salamanca, Carlos Taboada-Verona, Diego Uchima Taborda, Alejandra Viasus-Bastidas Bees as providers of cultural ecosystem services: case of the Bogotá Botanical Garden, Colombia 2020-10-28T14:56:47-05:00 Ángela Teresa Rodríguez-C. Viviana García-M. Susana Currea-M. <p>The purpose of this study was to evaluate the potential of artificial domiciles for solitary bees and thereby explore ecosystem services besides pollination. Artificial modules<br />were installed in three previously selected areas of the Botanical Garden of Bogotá. Weekly monitoring was carried out from June (2017) to August (2019), an exhaustive monitoring<br />every six months and the palynological analysis of 48 samples collected from the modules.<br />Only the Páramo and high Andean Forest module (33.3 %) was colonised by bees (<em>Megachile amparo</em>, <em>Megachile</em> sp., <em>Colletes</em> sp. and <em>Chilicola brooksi</em>). The materials most used as nests<br />were perforated wooden blocks and paper tubes. The emergency rate of incubated nests was higher in <em>Colletes</em> sp., and no order was observed in the emergence of females and males,<br />while in <em>M. amparo</em> the emergence of males was greater. The females of <em>Colletes</em> sp. presented the highest colonization of nests in the study. Pollen analysis of the nests showed that <em>Colletes</em> sp. has a tendency to be oligolectic, while <strong>M. amparo</strong> and <em>C. brooksi</em> are polylectic. The low<br />number of species that nested in these modules may be indicative of the low potential as a conservation strategy; however, they were useful research tools to understand the habits of species with little or no information. The modules made it possible to have experiential, educational, scientific and aesthetic interactions as forms of cultural ecosystem services, as well as to formulate recommendations to consider the relevance of their implementation.</p> 2021-09-20T00:00:00-05:00 Copyright (c) 2021 Ángela Teresa Rodríguez-C., Viviana García-M., Susana Currea-M. Quantitative biological response of two predators (Heteroptera: Notonectidae) in the larval control of Aedes aegypti (Diptera: Culicidae) 2020-12-17T17:38:40-05:00 Yuri Olivier Ayala-Sulca Percy Colos-Galindo Edwin Portal-Quicaña Luis Ibarra-Juárez Reynán Cóndor-Alarcón Carlos Carrasco-Badajoz Rina Ramírez <p>Predation is a biotic factor that influences the structure and functioning of ecosystems, its effect can be quantified through functional (FR) and numerical response in a successful-invasion context. We use FR to understand the coevolutionary relationships, and measured the biological response of the predators <em>Notonecta peruviana</em> and <em>Buenoa fasciata</em> in the control of fourth-stage larvae of <em>Aedes aegypti</em> (F<sub>1</sub>) at different densities (5, 10, 20, 35, 55 and 80 larvae / liter). Fasting predators (48 hours) were introduced to the test containers <br />(one individual per species) and the FR, the number of preys consumed (<em>Ne</em>), the attack coefficient (<em>a</em>) and handling time (Th). N. peruviana and <em>B. fasciata</em> developed a type II FR in the consumption of larvae of <em>Ae. aegypti</em> (<em>p</em> ≤ 0.01), and occupied close handling times (Th) (t = –1.93; df = 12; <em>p</em> = 0.078). <em>N. peruviana</em> preyed (Ne) twice as many larvae of <em>Ae. aegypti </em>(<em>p</em> ≤ 0.05) and showed a higher attack coefficient (<em>a</em>) in relation to <em>B. fasciata</em> (t = 14.92; <br />df = 12; p = 0.000). The predators <em>N. peruviana</em> and <em>B. fasciata</em> rapidly destabilized and consumed the preys. <em>N. peruviana</em> preyed twice as many larvae, attributable to the recent <br />predator-prey effect compared to the possible coevolutionary adjustment between <em>B. fasciata </em>and <em>Ae. aegypti</em>. It would be important to consider the predator species in the vector control <br />programs for aedine mosquitoes.</p> 2021-07-22T00:00:00-05:00 Copyright (c) 2021 Yuri Olivier Ayala-Sulca, Percy Colos-Galindo, Edwin Portal-Quicaña, Luis Ibarra-Juárez, Reynán Cóndor-Alarcón, Carlos Carrasco-Badajoz, Rina Ramírez