Andrés Ramírez Ponce

Instituto de Ecología A. C. (INECOL) · Red de Biodiversidad y Sistemática

Insectivorous bats exhibit food preferences for specific attributes in their prey. Hardness has been defined as an important prey attribute, and in some cases a limiting factor in foraging decisions for smaller compared to larger bat species. The goal of this study was to identify which factors influence the selection of prey hardness in a vesperti...

https://authors.elsevier.com/a/1gR9HA7vOtmL-

Phyllophaga (s. str.) xenomorphallica sp. nov. is described and illustrated from Jurutungo, Chiriqui province, Panama. The comparison with the currently described species of the schizorhina species group, a checklist for the species of this group from Panama and a distribution map are presented.

Based on material collected of both sexes, a new species of Melolonthidae, Dynastinae, Cyclocephalini: Cyclocephala mixteca sp. nov. is described. Types were collected using black light traps in the community of Santo Domingo Yanhuitlán, Oaxaca, Mexico. This new species is similar to Cyclocephala lunulata and represents the first endemic species re...

Los Parques Nacionales La Malinche e Iztaccíhuatl-Popocatépetl son dos áreas protegidas que resguardan ecosistemas de las montañas templadas del centro de México. Estos ecosistemas se caracterizan por ser un centro de diversificación y endemismo para distintos grupos de organismos, como los coleópteros. Sin embargo, estos parques nacionales se encu...

En México, los coleópteros Scarabaeoidea se conocen comúnmente como “escarabajos de mayo”, “escarabajos de junio” o “escarabajos sanjuaneros” y en el estado de Aguascalientes, México, es bajo su grado de conocimiento debido a la falta de especialistas en el grupo en esa entidad y a la falta de interés por parte de especialistas de otras institucion...

Results of an aquatic beetle survey at Volcán Tacaná, Mexico, are presented with five altitudinal levels in a monthly sampling regime, aiming to estimate both diversity and altitudinal distribution patterns of the aquatic beetle fauna. The first list of aquatic beetle species from this mountain is presented, comprising 40 species in 32 genera and n...

Se presenta una síntesis de la riqueza de especies y distribución geográfica de escarabajos carábidos del estado de Hidalgo, México, elaborada mediante la revisión de ejemplares de tres colecciones nacionales y una extrajera, revisión exhaustiva de literatura publicada, incluyendo dos trabajos de tesis, y la revisión de bases de datos de cuatro col...

Results of an aquatic beetle survey at Volcán Tacaná, Mexico, are presented with five altitudinal levels in a monthly sampling regime, aiming to estimate both diversity and altitudinal distribution patterns of the aquatic beetle fauna. The first list of aquatic beetle species from this mountain is presented, comprising 40 species in 32 genera and n...

Introducción: La diversidad de una comunidad biológica es el resultado de procesos ecológicos e históricos, los cuales, analizados en conjunto, producen una mejor comprensión de las causas que la generan. Objetivo: Actualizamos y analizamos la diversidad específica y taxonómica de la ictiofauna del río Amacuzac, México. Métodos: Durante cinco tem...

Two new species of Disteniidae are described from Oaxaca, Mexico: Distenia (Distenia) toledoi sp. n. and Elytrimitatrix (Grossifemora) chimalapensis sp. n. Distinguishing characters from closely related species are given and discussed. New state records are provided for Distenia (Basisvallis) rugiscapis Bates, 1885; Disteniazteca fimbriata (Lacorda...

Heterosternus galindorum new species (Coleoptera: Scarabaeidae: Rutelini) from the state of Puebla, Mexico, is described and illustrated. Keys to identify males of Heterosternus Dupont with photographs, a comparative table of morphological characters, and a distribution map of the genus are provided. http://www.zoobank.org/urn:lsid:zoobank.org:act:...

Epectinaspis canoi new species is described and illustrated, and its similarities with the other species of the genus are discussed. A modification of the taxonomic key of this genus is provided. In addition, Balanogonia constricta Paucar-Cabrera is rediscovered and illustrated with data on its geographical distribution and habits. urn:lsid:zoobank...

The morphological limits of the genus Parabyrsopolis Ohaus (Coleoptera: Scarabaeidae: Rutelinae: Rutelini: Areodina) are redefined and Parabyrsopolis moroni new species is described from west-central Mexico. With this addition, the genus now includes five species that are distributed from southwestern United States of America to central Mexico. Dia...

Neoscelis hexakrotes new species (Coleoptera: Scarabaeidae: Cetoniinae: Goliathini) is described from Guerrero, Mexico. Keys to identify male and female Neoscelis Schoch species and new distribution records for Neoscelis dohrni (Westwood) are provided.

Neoscelis hexakrotes new species (Coleoptera: Scarabaeidae: Cetoniinae: Goliathini) is described from Guerrero, Mexico. Keys to identify male and female Neoscelis Schoch species and new distribution records for Neoscelis dohrni (Westwood) are provided.

In the tropics, changes in land use are a major concern given that the transformation of natural ecosystems to degraded environments for human use occurs rapidly and is associated with deforestation, fragmentation, isolation, among other impacts. Scarab beetles are well represented in tropical and warm temperate ecosystems due to their high diversi...

Hyalophora haghenbecki, a new species of saturniid moth collected in the Tehuacán-Cuicatlán Valley, state of Puebla, Mexico, is described and illustrated. It is distinguished by its forewings prolonged apically, hindwings with the postmedial line straight anteriorly, and the edeagus moderately widened from the middle to the apex.

Chrysina chimalapensis new species (Coleoptera: Scarabaeidae: Rutelinae: Rutelini), from the region of Chimalapas, Oaxaca, Mexico is described and illustrated. A key to the species of the C. quiche species group is included. Plusiotis neotenochca Morón & Nogueira is placed as a new junior synonym of Chrysina paulseni Hawks, and C. aenigmatica (Moró...

Plusiotis cosijoezai sp. n. is described from the Sierra Madre del Sur, Oaxaca, in southern México. Habitus and genitalia are illustrated, and diagnostic characters are compared with the closest species, P. lacordairei Boucard.

The origin and function of exaggerated traits exhibited by a great number of species with sexual dimorphism remain largely unexplored. The usual model considered as the evolutionary mechanism for the development of these structures is sexual selection. The nature of growth of the postocular flange (POF) in three species of the dobsonfly genus Platy...

Specimen measurements log-transformed (IOD = interocular distance, IAD = interantennal distance, AWL = anterior wing length, MW = mesial width, DL = diagonal length, SL = postocular spine length; M = male, F = female). (DOCX)

Means for one-way ANOVA (IOD = interocular distance, IAD = interantennal distance, AWL = anterior wing length, MW = mesial width, DL = diagonal length, SL = postocular spine length; F = female, M = male, n = number of specimens). (DOCX)

Pairwise correlations between measures of two types of traits (Body, indicative of a standard body measure: IOD = interocular distance, IAD = interantennal distance, AWL = anterior wing length; POF, indicative of a post ocular flange measure: MW = mesial width, DL = diagonal length, SL = postocular spine length; Signif. Prob. = significance of prob...

Third stage larvae and pupae are described based on specimens collected in Mexico: Oaxaca (Cerro Zempoaltepetl), and Chiapas (Amatenango), respectively. Pupal characters are described for the first time for American Hopliinae. Habitus images and figures of diagnostic characters as well as comments on the differences between these larvae and those o...

Two new species of the genus Paranomala Casey that exhibit notable and unusual pronotal surface configurations are described. Distinctive characters of these species are discussed and illustrated and comments on their resemblance and kinship with other Paranomala species that also exhibit an irregular pronotal surface are included.

Two new species of the genera Epectinaspis Blanchard and Strigoderma Burmeister from Central America, E. costaricensis new species and S. ngabe new species, are described and illustrated. For each species and their closest congeners, their diagnostic characters are discussed and the taxonomic keys for their determination are modified.

Giesbertiolus curoei, new species is described from a female specimen collected in northwestern Panama. This species is compared with the three known species of Giesbertiolus Howden and with the genus Dialithus Parry. The genera Dialithus and Giesbertiolus are redefined to include this new species, and new diagnostic characters are provided for bot...

The new subgenus Bucaphallanus is proposed to place the species of Paranomala Casey that has the apex of the mentum widely bilobed and provided with a dense fringe of setae and with lateral carinae on the abdominal sternites, as P. castaniceps (Bates) and P. capito (Ohaus). Six new species from Mexico are described and included in the new subgenus....

Descriptions or redescriptions along with comments on the distribution and habits of six species in the genus Pachystethus are provided. Anomala nutans Bates and A. vidua crassesculpta Bates are transferred to the genus Pachystethus and P. matzapatlecus new species, P. ixtacomitanus new species and P. nectoctenus new species are described from Oaxa...

Shiny chafers of the tribe Anomalini are represented in Mesoamerica by 14 genera and 240 species, but revisions, keys to species and biological information are scarce, despite the fact that a number of species have been cited as pests of diverse cultures, mainly as part of the white grub guilds. Past studies on the taxonomy of these species offer m...

A new species of Callistethus from Mexico (Coleoptera, Melolonthidae, Rutelinae). Callistethus tlapanecus, a new species collected in pine forest located at 2160 meters of altitude in eastern mountains of the state of Guerrero, Mexico is described. The morphological characters that distinguish it from other Mexican and Central American species are...

INTRODUCCIÓN Dentro del género Anomala Samouelle, 1819 se han definido categorías supraespecíficas con criterios taxonómicos y morfológicos heterogéneos que en numerosos casos dificultan su diagnóstico mediante una única combinación de caracteres (v.g. Burmeister, 1844; Blanchard, 1851; Bates, 1888; Casey, 1915; Machatschke, 1957, 1972; Ohaus, 1918...

A phylogenetic analysis based on adult morphology that includes some genera included in the tribe Anomalini is presented, to redefine the genus Anomala Samouelle, 1819, and evaluate its phylogenetic situation. The parsimony analysis, based on 46 species of 18 genera from several areas of the world, allowed us to test the monophyly of some genera an...

Se presenta un estudio comparativo de la fauna de coleópteros lamelicornios (Melolonthidae, Scarabaeidae y Passalidae) establecida en el bosque mesófilo de montaña, y los bosques de pinos y encinos situados entre los 1,946 y 2,363 m de altitud en el municipio de Santiago Xiacui, Sierra Norte del estado de Oaxaca, México. Entre junio de 2003 y junio...

A phylogenetic analysis based on adult morphology that includes some genera included in the tribe Anomalini is presented, to redefine the genus Anomala Samouelle, 1819, and evaluate its phylogenetic situation. The parsimony analysis, based on 46 species of 18 genera from several areas of the world, allowed us to test the monophyly of some genera an...