A new species of Dilophochila Bates, 1888 with comments on natural history and distribution of the genus (Coleoptera: Melolonthidae: Rutelinae)

A new species, Dilophochila glabra sp. nov. is described from the Sierra Norte, Oaxaca, Mexico. Diagnosis and images (dorsal, lateral and ventral habitus, and genitalia) of the taxonomic characters are provided. Affinities with their closest congeners and the general distribution pattern of the genus are discussed, considering that it presents a typical Mountain Paleoamerican sub-pattern. The modifications in the mouthparts of this genus due to the specialization in the intake of pine needles are commented, as well as in two other different taxa within Anomalini

A new genus of Phengodidae (Coleoptera) from the Neotropical Region

Cleicosta, a new genus of Phengodidae containing two new species, C. equatoreana sp. nov., and C. monaguense sp. nov., are described. Additionally, a new combination for Cenophengus breviplumatus Wittmer, 1976 is included. Cleicosta gen. nov., is the thirty-eighth genus assigned to the beetle family Phengodidae in the new world and is also the most morphologically similar to Cenophengus LeConte, 1881. Both genera exhibit clearly separated tentorial pits, vertical frons and simple tarsomeres. In Cleicosta gen. nov., however, the antennal rami are 1.5 times longer than the corresponding antennomere, the pronotum is subquadrate and the elytra are short, reaching the first or second abdominal segment. In addition, it presents an aedeagus with lateral lobes slender, parallel exteriorly, narrowed medially to toothless apex

New records, biogeographic distribution and generic key of phengodidae (Coleoptera) from Argentina

Two species of Phengodidae (Coleoptera) are reported for the first time in Argentina: Neophengus huantaensis Wittmer, 1976 and Mastinomorphus atacamensis (Wittmer, 1963). Oxymastinocerus unicolor (Pic, 1926) is firstly reported from Catamarca, Chaco, La Rioja, and Tucumán. Diagnoses and geographical distributions of these three species are provided. A key to identification of Phengodidae genera in Argentina is included and their biogeographical affiliation is discussed.Se registran por primera vez dos especies de Phengodidae (Coleoptera) en Argentina: Neophengus huantaensis Wittmer, 1976 y Mastinomorphus atacamensis (Wittmer, 1963). Oxymastinocerus unicolor (Pic, 1926) se reporta por primera vez en Catamarca, Chaco, La Rioja y Tucumán. Se proporcionan diagnosis y distribuciones geográficas de estas tres especies. Se incluye una clave para la identificación de los géneros de Phengodidae en Argentina y se examina su afiliación biogeográfica.Fil: Vega Badillo, Viridiana. Universidad Nacional Autónoma de México; MéxicoFil: Torrens, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; ArgentinaFil: Zaragoza Caballero, Santiago. Universidad Nacional Autónoma de México; Méxic

Especies de coleoptera (insecta) de la colección de artrópodos de la facultad de estudios superiores, Iztacala (cafesi), UNAM, México

The list of beetle species deposited at the Arhtropods Collection of the Facultad de Estudios Superiores Iztacala (CAFESI), UNAM, includes 10,277 specimens, grouped in five superfamilies, 15 families, 41 subfamilies, 172 genera and 570 species, of wich 231 are identified at species level and 339 at genus level and separated at morphspecies. The families Staphylinidae and Scarabaeidae represent 87.7% of the richness and 73% of the total specimens. The collection housed two holotypes of Paederinae, and paratypes of three species of Paederinae and two species of Staphylininae (Staphylinidae). It has a regional geographic coverage, 96% of the species and specimens recorded come from nine states of south central region of México, mainly from Estado de México with 54.7% of the species and 41.6% of the specimens, followed by Morelos, Guerrero and Michoacán. The collection also includes 61 specimens of 11 species of Paederinae coming from Argentina, Bolivia and Brazil. Forty five percent of the species and 26% of the specimens come from the tropical deciduous forest, while 30.8% of the species and 17.6% of the specimens come from the temperate forest.  RESUMEN. La lista de especies de coleópteros depositados en la Colección de Artrópodos de la Facultad de Estudios Superiores Iztacala (CAFESI), UNAM, incluye 10,277 especímenes, agrupados en cinco superfamilias, 15 familias, 41 subfamilias, 172 géneros y 570 especies, de las cuales 231 están identificadas nivel especie y de éstas, 339 a género y separadas a morfoespecie. Las familias Staphylinidae y Scarabaeidae representan el 87.7% de la riqueza y el 73% del total de especímenes. La colección alberga dos holotipos de Paederinae, y paratipos de tres especies de Paederinae y dos especies de Staphylininae (Staphylinidae). Tiene una cobertura geográfica regional, 96% de las especies y especímenes registrados provienen de nueve estados de la región centro-sur de México, principalmente del Estado de México con 54.7% de las especies y 41.6% de los especímenes, le siguen Morelos, Guerrero y Michoacán. Se incluyen especímenes de 11 especies de Paederinae provenientes de Argentina, Bolivia y Brasil. Del  bosque tropical caducifolio provienen el 45% de las especies y el 26% de los ejemplares, mientras que el 30.8% de las especies y el 17.6% de los especímenes provienen de los bosques templados.

Pyropyga julietafierroae sp. nov. (Coleoptera: Lampyridae): Un ejemplo de participación ciudadana en la ciencia

Se presenta la descripción de Pyropyga julietafierroae sp. nov., incluyendo los genitales de la hembra, de modo que es la primera vez que se describen estas estructuras para una hembra del género Pyropyga Motschulsky, 1852. La especie nueva fue descubierta en un ambiente urbanizado de Ciudad Universitaria en la Ciudad de México, lo que aumenta a 13 especies el género Pyropyga, de las cuales ocho se registran en México. Se muestra un mapa de distribución de las especies mexicanas. Además, se comenta sobre la participación de la ciudadanía para la propuesta y elección del nombre científico con la temática “Mujeres Mexicanas Ilustres”, este ejercicio se realiza por primera vez para nombrar una especie de luciérnaga en nuestro país.We present the description of Pyropyga julietafierroae sp. nov., including the female genitalia, so that it is the first time that these structures are described for a female of the genus Pyropyga Motschulsky, 1852. The new species was recovered from the urbanized environment of Ciudad Universitaria, Mexico City. The total number of species for the genus increases to 13, of which, eight are recorded from Mexico. A distribution map of Mexican species is included. Moreover, herein we comment on the citizen involvement for the proposal and choice of the scientific name with the theme “Illustrious Mexican Women”, this is the first time that a dynamic like this is carried out for naming a firefly species in our country

Analysis of the productive and immune response of lambs infected with gastrointestinal nematodes and fed with saccharin

Objective: To determine the productive traits and immune response in Blackbelly lambs infected with gastrointestinal nematodes (GIN) fed with saccharin. Design / methodology / approach: Three treatments (T) were randomly assigned to 18 Blackbelly lambs, with an initial live weight (LW) of 13.9 + 3.2 kg. In T1 anthelmintic + base diet (CTah) was used; T2 without anthelmintic + base diet (STah) and T3 were grazing lambs without anthelmintic (STPS). The experimental design was completely randomized with measures repeated over time and the averages of the treatments were compared using Lsmeans. Evaluations included live weight (LW), egg per gram of feces (EPG), packed cell volume (PCV), total plasma protein (TPP), differential leukocyte count (WBC), and IgA level by ELISA with Haemonchus contortus and Trichostrongylus colubriformis antigens Results: The STah and CTah lambs showed a higher number of EPG (885 ± 142) and LW (29.73 ± 5.06 kg). While grazing lambs (STPS) showed the lowest PCV (26.4 ± 0.5%) compared to STah and CTah lambs (27.4 to 28.4%), caused by the high prevalence of H. contortus. The IgA level in grazing lambs was from 20.2 to 24.5% with respect to the positive standard, RPS, while the stabled lambs (STah and CTah) showed values ??close to 5% RPS. Study limitations / implications: Due to anthelmintic resistance problems, it was not possible to keep lambs free of infection in grazing, so this group was not included. Findings / conclusions: Feeding with saccharin allows increasing the resilience of sheep and achieving adequate weight gains in parasitized lambsObjective: Determine the productive and immune response of Blackbelly lambs infectedwith gastrointestinal nematodes (GIN) and fed with saccharin.Design/ methodology/ approach: A total of 18 Blackbelly lambs, with an initial live weight (LW) of 13.9 + 3.2 kg, were randomly assigned to three different treatments (T): T1, anthelmintic treatment + basal diet (CTah); T2, basal diet without anthelmintic treatment (STah); and T3, grazing lambs without anthelmintic treatment (STPS). This experiment followed a completely randomized design with repeated measures over time; mean values were compared using Lsmeans. The parameters evaluated included live weight (LW), fecal egg count per gram (FEC), packed-cell volume (PCV), plasma protein (PP), white blood celldifferential count (LEU), and IgA concentration by ELISA with Haemonchus contortusand Trichostrongylus colubriformis antigens.Results: STah and CTah lambs showed higher FEC (885 ± 142) and LW (29.73 ± 5.06kg). Grazing lambs (STPS) had lower PCV (26.4 ± 0.5%) compared to the STah andCTah lambs (27.4 to 28.4%) due to the high prevalence of H. contortus. The IgAconcentration in grazing lambs ranged from 20.2 to 24.5% of the positive standardserum titer. The feedlot lambs (STah and CTah) showed values close to 5%.Study limitations/ implications: Due to anthelmintic resistance problems, it wasimpossible to maintain grazing lambs free of infection; therefore, this group was notincluded.Findings/ conclusions: Saccharin increases sheep resilience and achieves adequateweight gains in parasitized lambs

Dos géneros y tres especies nuevos de Penicillophorinae (Coleoptera: Phengodidae) de México Two new genera and three new species of Penicillophorinae (Coleoptera: Phengodidae) of Mexico

Se describen e ilustran 2 géneros y 3 especies nuevos de Phengodidae: Penicillophorinae, procedentes de Ixtlahuacán, Colima y Huatulco y Santiago Dominguillo, Oaxaca. Los géneros y especies son: Walterius caballeroae, n. sp., W. emilioi n. sp. y Tarsakanthos minuta n. sp. Se elabora una clave para la identificación de los 5 géneros conocidos de Penicillophorinae.Two new genera and 3 new species of Phengodidae: Penicillophorinae, are described and illustrated. They were colleted in Ixtlahuacán, Colima, Huatulco, Oaxaca and Santiago Dominguillo, Oaxaca. These genera and new species are: Walterius caballeroae, n. sp. W. emilioi n. sp. and Tarsakanthos minuta n. sp. Key for of the 5 known genera of Penicillophorinae is presented

Nuevas especies de Photinus (Coleoptera: Lampyridae: Photinini) del bosque tropical caducifolio del Pac\uedfico mexicano

ResumenSe describen e ilustran 10 especies nuevas del género Photinus procedentes de San Buenaventura, Jalisco; San Javier, Sonora; Huatulco, Oaxaca; Acahuizotla, Guerrero, y Mesa del Nayar, Nayarit. La segregación se fundamenta principalmente en la configuración del edeago. Las especies propuestas como nuevas son: Photinus geovanni, P. paulinae, P. cisteilae, P. martini, P. sarae, P. enyae, P. navarretei, P. magdalenae, P. mireyae y P. viridianae. Se incorpora un fenograma e información sobre la similitud de las especies tratadas, así como las características morfológicas de las mismas.AbstractTen new species of the genera Photinus are described and illustrated. The species are from San Buenaventura, Jalisco; San Javier, Sonora; Huatulco, Oaxaca; Acahuizotla, Guerrero, and Mesa del Nayar, Nayarit. The separation is mainly based on the configuration of the edeagus. These new species are: Photinus. geovanni, P. paulinae, P. cisteilae, P. martini, P. sarae, P. enyae, P. navarretei, P. magdalenae, P. mireyae and P. viridianae. A phenogram and information about the similarity of the species are provided, as well as morphological characters

CANTHAROIDEA (COLEOPTERA) DE MEXICO. III. EL GENERO PLATEROS BOURGEOIS (LYCIDAE: EROTINAE: PLATERODINI)

Fifty seven species of the genus Plateros Bourgeois from México are revised, from which 45 are proposed new species, as well as the subgenus Paraplateros. The following species are registered for the first time for México: P. apicalis Gorham, P. aterrímus (Gorham), P. erebos Gorham, P. nicaragoensis Gorham P. ochraceos Gorham, y P. stramineos Gorham. A change in the statos for Calleros aterrimos Gorham) is proposed. The material examinad comes from 19 States. Veracruz (19), Chiapas (12),Oaxaca (10), Puebla (7), Jalisco (5), Morelos (4) y Sinaloa (4), are the best representad Mexican States. The position of the species is based in the external morphology of the male genitalia, along with its coloration, morphology and morphometry. 49 morphological characters were used for to construct an assay of a cladogram for the Mexican species.Se estudian 57 especies del género Plateros Bourgeois de México, 45 de ellas se proponen como nuevas. Se propone el subgénero Paraplateros como nuevo. Se registran por vez primera para México a: P. apicalls Gorham, P. aterrimus (Gorham), P. erebos Gorham, P. nicaraguensís Gorham, P. ochraceus Gorham y P. stramineus Gorham. Se propone una nueva combinación para Calleros aterrimus Gorham. El material de estudio procede de 19 estados de la República Mexicana. Veracruz (19), Chiapas (12), Oaxaca (10), Puebla (7), Jalisco (5), Morelos (4) Y Sinaloa (4), son los mejor representados en números de especies. La caracterización o reconocimiento de las especies, se basa principalmente en la configuración de la porción externa del aparato reproductor masculino (edeago), además del color, morfología general y morfometría. Se utilizaron 49 caracteres fenotípicos y morfométricos para la elaboración de un ensayo de análisis cladístico de las especies mexicanas