LA FAUNA DE COLEOPTERA MELOLONTHIDAE DE LA RESERVA DE LA BIÓSFERA EL TRIUNFO, CHIAPAS, MÉXICO

A study on the species of Melolonthidae was conducted in the Biosphere Reserve El Triunfo, located in the southeastern portion of Sierra Madre del Sur, Chiapas state, Mexico. Collections were made using a light trap, rotting fruit traps, and direct capture on plants, between 1997 and 1998. Fourty species were collected, from 24 genera of Melolonthinae, Rutelinae, Dynastinae, Cetoniinae and Trichiinae. Phyllophaga, Anomala and Cyclocephala had the greatest number of species. Species recently described in the genera Yaaxkumikia, Anomala, Mesosternus, Parisoleoides, Chrysina, Plusiotis, Hologymnetis and Phyllophaga, are recorded. Hoplia subcostata Bates and Plusiotis quiche Morón are recorded for the first time in Mexico; and the record of Archedinus relictus Morón and Krikken, as relictual species is confirmed. Based on the species accumulation per collection effort, it is estimated that the present collection accounts for 70% of the nocturnal species of Melolonthidae in the reserve. A preliminary key to the species from the Biosphere Reserve is included.Se presenta un estudio faunístico de los Melolonthidae de la Reserva de la Biósfera El Triunfo, ubicada en la porción sureste de la Sierra Madre del Sur en el estado de Chiapas, México. Se efectuaron colectas con trampa de luz tipo pantalla, trampas con fruta fermentada y captura directa sobre plantas, durante 1997 y 1998, que aportaron 40 especies de 24 géneros de Melolonthinae, Rutelinae, Dynastinae, Cetoniinae y Trichiinae. El mayor número de especies se encuentra en los géneros Phyllophaga, Anomala y Cyclocephala. Se encontraron especies recientemente descritas de los géneros Yaaxkumukia, Anomala, Mesosternus, Parisoleoides, Chrysina, Plusiotis, Hologymnetis y Phyllophaga. Hoplia subcostata Bates y Plusiotis quiche Morón se registran por primera vez para México, y se confirma la presencia de Archedinus relictus Morón y Krikken, especie relictual descrita de El Triunfo en 1990. La estimación de la riqueza de especies por esfuerzo de colecta indica que esta investigación aportaría el 70 % de las especies nocturnas de esta localidad. Con base en los ejemplares capturados, se presenta una clave preliminar para las especies de Melolonthidae de la reserva

FAUNA DE COLEOPTERA MELOLONTHIDA E DE VILLA LAS ROSAS, CHIAPAS, MÉXICO

A study of the nocturnal Melolonthidae beetle fauna of Villa Las Rosas, Chiapas, México is presented. Data were obtained during 1999-2000 with 103 nights of collecting effort at lights near the borders of subdeciduos tropical forest and pine-oak forest, located at 1,240 m of altitude. Records of 3 subfamilies, 9 tribes and 50 species of the genera Diplotaxis, Phyllophaga, Polyphylla, Hoplia, A nomala, Pelidnota, Cyclocephala, Euetheola, Ligyrus, Coelosis, Enema, Strategus, Xyloryctes, Spodistes, A rchophileurus, Hemiphileurus and Phileurus are included. Higher specific diversity is presented in the genera Phyllophaga (16 spp.) and, A nomala (11 spp.). Phyllophaga tenuipilis (Bates), P. ravida (Blanchard), Xyloryctes lobicollis Bates and, A nomala inconstans Burmeister were the most abundant species in the samples. A rchophileurus simplex (Bates) and Phyllophaga anolaminata (Moser) are cited for firsttime in México, and A nomala decolor Bates, A . forreri (Bates), Diplotaxis consentanea Bates, D. simillima Moser and, Hoplia squamifera Burmeister are recorded for first time from Chiapas state. A key to the 50 species is included. Most genera represented in the study area have Neotropical origin, but 51 % of the species belong to Paleoamerican dispersal pattern (sensu Halffter 1976). The Melolonthidae fauna of Villa Las Rosas area is 27.72% similar (QS Sorensen) with the species found in Los Tuxtlas, Veracruz; and 27.40% similar with the species from the mountains at northeast of Hidalgo, Mexico.Se presenta un estudio de las especies nocturnas de la familia Melolonthidae (sensu Endrödi, 1966) en Villa Las Rosas, Chiapas, con los objetivos de conocer su riqueza, abundancia y fenología. El municipio de Villa Las Rosas, se encuentra a 1,240 m de altitud, en un ambiente de transición entre selva baja subcaducifolia y bosque de coníferas. Para la captura de los ejemplares se utilizaron como trampas de luz las lámparas del alumbrado público. Durante 1999-2000 se aplicó un esfuerzo de colecta sistemática de 103 noches, y se capturaron 4,029 ejemplares pertenecientes a 50 especies de los géneros Diplotaxis, Phyllophaga, Polyphylla, Hoplia, A nomala, Pelidnota, Cyclocephala, Euetheola, Ligyrus, Coelosis, Enema, Strategus, Xyloryctes, Spodistes, A rchophileurus, Hemiphileurus y Phileurus. La mayor riqueza y abundancia correspondió a las especies de Phyllophaga (16 spp.) y A nomala (11 spp.), algunas de las cuales podrían tener importancia económica, como posibles plagas que consumen las raíces de los cultivos en la región. Se citan por primera vez para México: A rchophileurus simplex (Bates) y Phyllophaga anolaminata (Moser), y se consideran como primeros registros para Chiapas: A nomala decolor Bates, A . forreri Bates, Diplotaxis consentanea Bates, D. simillima Moser y Hoplia squamifera Burmeister. Se incluye una clave para separar las 50 especies encontradas. El 51% de las especies de Villa Las Rosas corresponde al patrón Paleoamericano con amplio éxito (sensu Halffter, 1976), pero a nivel genérico el predominio es Neotropical. Esta fauna tiene más similitud (QS Sorensen) con Los Tuxtlas, Veracruz (27.72% ) y las montañas del Noreste de Hidalgo (27.40% )

Ad Honorem, Miguel Ángel Morón Ríos (1952 – 2017)

Como homenaje Ad Honorem se presentan las múltiples y diversas actividades académicas que Miguel Ángel Morón realizó a lo largo de su productiva vida académica, haciendo un breve repaso de sus aportes científicos siguiendo un orden cronológico y temático.Como homenaje Ad Honorem se presentan las múltiples y diversas actividades académicas que Miguel Ángel Morón realizó a lo largo de su productiva vida académica, haciendo un breve repaso de sus aportes científicos siguiendo un orden cronológico y temático

Ruptura de músculo papilar antero lateral por endocarditis local. Presentación inusual de la endocarditis de válvula nativa

Se presenta en caso de un varón de 55 años con diagnóstico de insuficiencia mitral severa por ruptura de músculo papilar; los hallazgos operatorios mostraron vegetaciones múltiples en la cabeza del musculo papilar anterolateral con ruptura total del mismo y velos valvulares normales. La histopatología mostró infiltrado inflamatorio polimorfonuclear en el tejido endocárdico y miocárdico, además vegetaciones fibrinosas en la superficie del musculo papilar, el cultivo del tejido resultó positivo a K. pneumoniae, concluyéndose como endocarditis aislada por infección directa del músculo papilar. El paciente recibió tratamiento antibiótico por seis semanas y fue dado de alta a los 45 días del ingreso con grado funcional I

Aortic valve replacement through minithoracotomy. Results from the Peruvian experience

Objectives. To assess mortality, major valve-related events (MAVRE), and other complications in the perioperative period and follow up in patients with aortic valve replacement (AVR) through minithoracotomy (MT). Methods. We retrospectively analyzed patients aged <80 who underwent AVR through MT between January 2017 and December 2021 in a national reference center in Lima, Peru. Patients undergoing other surgical approaches (mini-sternotomy, etc.), other concomitant cardiac procedures, redo, and emergency surgeries were excluded. We measured the variables (MAVRE, mortality, and other clinical variables) at 30 days and a mean follow-up of 12 months. Results. Fifty-four patients were studied, the median age was 69.5 years, and 65% were women. Aortic valve (AV) stenosis was the main indication for surgery (65%), and bicuspid AV represented 55.6% of cases. At 30-days, MAVRE occurred in two patients (3.7%), with no in-hospital mortality. One patient had an intraoperative ischemic stroke, and one required a permanent pacemaker. No patient underwent reoperation due to prosthesis dysfunction or endocarditis. In a mean follow-up of one year, MAVRE occurrence did not show variations with the perioperative period, most patients remained in NYHA I (90.7%) or II (7.4%) compared to the preoperative period (p<0.001). Conclusions. AV replacement through MT is a safe procedure in our center for patients under 80 years.Objectives. To assess mortality, major valve-related events (MAVRE), and other complications in the perioperative period and follow up in patients with aortic valve replacement (AVR) through minithoracotomy (MT). Methods. We retrospectively analyzed patients aged <80 who underwent AVR through MT between January 2017 and December 2021 in a national reference center in Lima, Peru. Patients undergoing other surgical approaches (mini-sternotomy, etc.), other concomitant cardiac procedures, redo, and emergency surgeries were excluded. We measured the variables (MAVRE, mortality, and other clinical variables) at 30 days and a mean follow-up of 12 months. Results. Fifty-four patients were studied, the median age was 69.5 years, and 65% were women. Aortic valve (AV) stenosis was the main indication for surgery (65%), and bicuspid AV represented 55.6% of cases. At 30-days, MAVRE occurred in two patients (3.7%), with no in-hospital mortality. One patient had an intraoperative ischemic stroke, and one required a permanent pacemaker. No patient underwent reoperation due to prosthesis dysfunction or endocarditis. In a mean follow-up of one year, MAVRE occurrence did not show variations with the perioperative period, most patients remained in NYHA I (90.7%) or II (7.4%) compared to the preoperative period (p<0.001). Conclusions. AV replacement through MT is a safe procedure in our center for patients under 80 years

Interaction between Calpain 5, Peroxisome proliferator-activated receptor-gamma and Peroxisome proliferator-activated receptor-delta genes: a polygenic approach to obesity

<p>Abstract</p> <p>Context</p> <p>Obesity is a multifactorial disorder, that is, a disease determined by the combined effect of genes and environment. In this context, polygenic approaches are needed.</p> <p>Objective</p> <p>To investigate the possibility of the existence of a crosstalk between the <it>CALPAIN 10 </it>homologue <it>CALPAIN 5 </it>and nuclear receptors of the peroxisome proliferator-activated receptors family.</p> <p>Design</p> <p>Cross-sectional, genetic association study and gene-gene interaction analysis.</p> <p>Subjects</p> <p>The study sample comprise 1953 individuals, 725 obese (defined as body mass index ≥ 30) and 1228 non obese subjects.</p> <p>Results</p> <p>In the monogenic analysis, only the peroxisome proliferator-activated receptor delta (<it>PPARD</it>) gene was associated with obesity (OR = 1.43 [1.04–1.97], p = 0.027). In addition, we have found a significant interaction between <it>CAPN5 </it>and <it>PPARD </it>genes (p = 0.038) that reduces the risk for obesity in a 55%.</p> <p>Conclusion</p> <p>Our results suggest that <it>CAPN5 </it>and <it>PPARD </it>gene products may also interact in vivo.</p

Cambios en la composición de la comunidad fúngica de biopelículas sobre roca calcárea a través de una cronosecuencia en Campeche, México

Background and Aims: The colonization of lithic substrates by fungal communities is determined by the properties of the substrate (bioreceptivity) and climatic and microclimatic conditions. However, the effect of the exposure time of the limestone surface to the environment on fungal communities has not been extensively investigated. In this study, we analyze the composition and structure of fungal communities occurring in biofilms on limestone walls of modern edifications constructed at different times in a subtropical environment in Campeche, Mexico.Methods: A chronosequence of walls built one, five and 10 years ago was considered. On each wall, three surface areas of 3 × 3 cm of the corresponding biofilm were scraped for subsequent analysis. Fungi were isolated by washing and particle filtration technique and were then inoculated in two contrasting culture media (oligotrophic and copiotrophic). The fungi were identified according to macro and microscopic characteristics.Key results: We found 73 genera and 202 species from 844 isolates. Our results showed that fungal communities differed in each biofilm. In the middle-aged biofilm a high number of isolates was found, but both species richness and diversity were low. In contrast, in the old biofilm species richness and diversity were high; Hyphomycete 1, Myrothecium roridum and Pestalotiopsis maculans were abundant. The dominant species in the middle-aged biofilm were Curvularia lunata, Curvularia pallescens, Fusarium oxysporum and Fusarium redolens, and in the young biofilm were Cladosporium cladosporioides, Curvularia clavata, Paraconiothyrium sp. and Phoma eupyrena.Conclusions: Our results suggest that the composition of the fungal community in each biofilm varies according to time of exposure to the environment. Furthermore, the fungal community was composed of a pool of uncommon species that might be autochthonous to limestone.Antecedentes y Objetivos: La colonización de los sustratos líticos por comunidades fúngicas está determinada por las propiedades del sustrato (bioreceptividad) y las condiciones climáticas y microclimáticas. Sin embargo, los efectos del tiempo de exposición de la superficie de la roca calcárea al ambiente sobre la composición de las comunidades fúngicas no se ha investigado. En este estudio, analizamos la composición y estructura de las comunidades fúngicas inmersas en biopelículas asociadas a roca calcárea, en paredes de edificaciones modernas construidas a diferentes tiempos en un ambiente subtropical en Campeche, México.Métodos: Se consideró una cronosecuencia de paredes construidas a uno, cinco y 10 años. Sobre cada pared, se rasparon tres superficies de 3 × 3 cm para cada biopelícula. Los hongos se aislaron por la técnica de lavado y filtración de partículas, posteriormente se inocularon en dos medios de cultivo contrastantes (un medio oligotrófico y uno copiotrófico). Los hongos se identificaron de acuerdo a sus características macro y microscópicas.Resultados clave: Encontramos 73 géneros y 202 especies de 844 aislados. Los resultados mostraron que las comunidades fúngicas son diferentes en las tres biopelículas. En la biopelícula de desarrollo intermedio encontramos un alto número de aislados, pero tanto la riqueza como la diversidad fueron bajas. En contraste, en la biopelícula avanzada, los valores de riqueza de especies y diversidad fueron altos, y las especies abundantes fueron Hyphomycete 1, Myrothecium roridum y Pestalotiopsis maculans. Las especies dominantes en la biopelícula intermedia fueron Curvularia lunata, Curvularia pallescens, Fusarium oxysporum y Fusarium redolens, y en la biopelícula joven fueron Cladosporium cladosporioides, Curvularia clavata, Paraconiothyrium sp. y Phoma eupyrena.Conclusiones: Nuestros resultados sugieren que la composición de la comunidad fúngica en cada biopelícula cambia de acuerdo al tiempo de exposición de la roca calcárea al ambiente. Además, como parte de la composición de la comunidad fúngica, encontramos un conjunto de especies poco comunes que podrían ser autóctonas en la roca calcárea

Survival and development of Brosimum alicastrum (Moraceae) and Psidium sartorianum (Myrtaceae) seedlings differ under flooding conditions

Antecedentes y Objetivos: En los bosques tropicales la inundación estacional puede actuar como filtro ambiental afectando la supervivencia, el establecimiento y el crecimiento de las plántulas de especies arbóreas e influir en la estructura de las comunidades. Se simularon condiciones de inundación y sequía con el objetivo de evaluar su efecto como filtro ambiental sobre la supervivencia, crecimiento (longitud del tallo y número de hojas) y biomasa acumulada en plántulas de Brosimum alicastrum y Psidium sartorianum de la selva de Campeche, México. Métodos: Se estableció un experimento en condiciones de vivero con un diseño completamente al azar, con tres tratamientos (sequía, riego regular e inundación). Para cada tratamiento se utilizaron 45 plántulas de cada especie. Se evaluaron la supervivencia, altura y número de hojas de las plántulas al inicio del experimento y a intervalos de 30 días hasta su conclusión a los 120 días. Al finalizar, se cosecharon las plántulas y se midió la longitud de las raíces y la biomasa acumulada. Resultados clave: La inundación disminuyó la supervivencia de plántulas de B. alicastrum y no la de P. sartorianum, limitó la longitud del tallo, el número de hojas y la biomasa acumulada de ambas especies, pero no la biomasa de raíces de P. sartorianum. La supervivencia de las plántulas expuestas a sequía y riego regular no cambió y aumentó el crecimiento y biomasa acumulada. Conclusiones: Las respuestas de las especies contribuyeron a entender el papel del filtro ambiental en el establecimiento de las plántulas de especies arbóreas en los bajos de Calakmul, Campeche. La inundación estacional actúa como un filtro ambiental, elimina las plántulas de B. alicastrum en los bajos, mientras que esta especie predomina en áreas con suelos bien drenados como los lomeríos adyacentes a la zona inundada. Psidium sartorianum se adaptó a las condiciones de sequía e inundación, como se observa en su hábitat natural.Background and Aims: Seasonal flooding in tropical forests may function as an environmental filter that affects the survival, establishment and growth of tree seedlings, with consequences for the assembly of communities. Seasonal flood and drought conditions were simulated with the objective to evaluate their effect on the survival, growth (stem length and number of leaves), as well as biomass accumulation in Brosimum alicastrum and Psidium sartorianum seedlings from the tropical forest of Campeche, Mexico. Methods: A nursery experiment was established with a completely random design with three treatments (flooding, regular irrigation and drought). For each treatment 45 seedlings were used for each species. The survival, height and number of leaves of the seedlings were measured at the beginning of the experiment and at 30 days intervals until the experiment ended at 120 days. The seedlings were then harvested and the length of the roots and the biomass accumulation were measured. Key results: The flood decreased the survival of B. alicastrum and did not change the survival of P. sartorianum. Likewise, it limited the length of the stem, the number of leaves and the biomass accumulated in both species, except for the biomass in roots of P. sartorianum. The survival of the seedlings exposed to drought and regular irrigation were not altered and showed increases in growth and accumulated biomass. Conclusions: The responses of the species contributed to understand the role of the environmental filter in the establishment of arboreal species seedlings in the lowlands of Calakmul, Campeche. Seasonal flooding in the lowlands acts as an environmental filter because it eliminates B. alicastrum seedlings, while it predominates in areas with well-drained soils, such as the hills adjacent to the low floodplains. Psidium sartorianum was well adapted to the conditions of drought and flood, as observed in its natural habitat

Synopsis of the pelidnotine scarabs (Coleoptera, Scarabaeidae, Rutelinae, Rutelini) and annotated catalog of the species and subspecies

The pelidnotine scarabs (Scarabaeidae: Rutelinae: Rutelini) are a speciose, paraphyletic assemblage of beetles that includes spectacular metallic species (“jewel scarabs”) as well as species that are ecologically important as herbivores, pollinators, and bioindicators. These beetles suffer from a complicated nomenclatural history, due primarily to 20th century taxonomic and nomenclatural errors. We review the taxonomic history of the pelidnotine scarabs, present a provisional key to genera with overviews of all genera, and synthesize a catalog of all taxa with synonyms, distributional data, type specimen information, and 107 images of exemplar species. As a result of our research, the pelidnotine leaf chafers (a paraphyletic group) include 27 (26 extant and 1 extinct) genera and 420 valid species and subspecies (419 extant and 1 extinct). Our research makes biodiversity research on this group tractable and accessible, thus setting the stage for future studies that address evolutionary and ecological trends. Based on our research, 1 new species is described, 1 new generic synonym and 12 new species synonyms are proposed, 11 new lectotypes and 1 new neotype are designated, many new or revised nomenclatural combinations, and many unavailable names are presented. The following taxonomic changes are made: New generic synonym: The genus Heteropelidnota Ohaus, 1912 is a new junior synonym of Pelidnota MacLeay, 1819. New species synonyms: Plusiotis adelaida pavonacea Casey, 1915 is a syn. n. of Chrysina adelaida (Hope, 1841); Odontognathus gounellei Ohaus, 1908 is a revised synonym of Pelidnota ebenina (Blanchard, 1842); Pelidnota francoisgenieri Moore & Jameson, 2013 is a syn. n. of Pelidnota punctata (Linnaeus, 1758); Pelidnota genieri Soula, 2009 is a syn. n. of Pelidnota punctata (Linnaeus, 1758); Pelidnota lutea (Olivier, 1758) is a revised synonym of Pelidnota punctata (Linnaeus, 1758); Pelidnota (Pelidnota) texensis Casey, 1915 is a revised synonym of Pelidnota punctata (Linnaeus, 1758); Pelidnota (Strigidia) zikani (Ohaus, 1922) is a revised synonym of Pelidnota tibialis tibialis Burmeister, 1844; Pelidnota ludovici Ohaus, 1905 is a syn. n. of Pelidnota burmeisteri tricolor Nonfried, 1894; Rutela fulvipennis Germar, 1824 is syn. n. of Pelidnota cuprea (Germar, 1824); Pelidnota pulchella blanda Burmeister, 1844 is a syn. n. of Pelidnota pulchella pulchella (Kirby, 1819); Pelidnota pulchella scapularis Burmeister, 1844 is a syn. n. of Pelidnota pulchella pulchella (Kirby, 1819); Pelidnota xanthogramma Perty, 1830 is a syn. n. of Pelidnota pulchella pulchella (Kirby, 1819). New or revised statuses: Pelidnota fabricelavalettei Soula, 2009, revised status, is considered a species; Pelidnota rioensis Soula, 2009, stat. n., is considered a species; Pelidnota semiaurata semiaurata Burmeister, 1844, stat. rev., is considered a subspecies. New or comb. rev. and revised status: Plusiotis guaymi Curoe, 2001 is formally transferred to the genus Chrysina (C. guaymi (Curoe, 2001), comb. n.); Plusiotis transvolcanica Morón & Nogueira, 2016 is transferred to the genus Chrysina (C. transvolcanica (Morón & Nogueira, 2016), comb. n.). Heteropelidnota kuhnti Ohaus, 1912 is transferred to the genus Pelidnota (P. kuhnti (Ohaus, 1912), comb. n.); Odontognathus riedeli Ohaus, 1905 is considered a subspecies of Pelidnota rubripennis Burmeister, 1844 (Pelidnota rubripennis riedeli (Ohaus, 1905), revised status and comb. rev.); Pelidnota (Strigidia) acutipennis (F. Bates, 1904) is transferred to the genus Sorocha (Sorocha acutipennis (F. Bates, 1904), comb. rev.); Pelidnota (Odontognathus) nadiae Martínez, 1978 is transferred to the genus Sorocha (Sorocha nadiae (Martínez, 1978), comb. rev.); Pelidnota (Ganonota) plicipennis Ohaus, 1934 is transferred to the genus Sorocha (Sorocha plicipennis (Ohaus, 1934), comb. rev.); Pelidnota similis Ohaus, 1908 is transferred to the genus Sorocha (Sorocha similis (Ohaus, 1908), comb. rev.); Pelidnota (Ganonota) yungana Ohaus, 1934 is transferred to Sorocha (Sorocha yungana (Ohaus, 1934), comb. rev.); Pelidnota malyi Soula, 2010: 58, revised status; Xenopelidnota anomala porioni Chalumeau, 1985, revised subspecies status. To stabilize the classification of the group, a neotype is designated for the following species: Pelidnota thiliezi Soula, 2009. Lectotypes are designated for the following names (given in their original combinations): Pelidnota brevicollis Casey, 1915, Pelidnota brevis Casey, 1915, Pelidnota debiliceps Casey, 1915, Pelidnota hudsonica Casey, 1915, Pelidnota oblonga Casey, 1915, Pelidnota pallidipes Casey, 1915, Pelidnota ponderella Casey, 1915, Pelidnota strenua Casey, 1915, Pelidnota tarsalis Casey, 1915, Pelidnota texensis Casey, 1915, and Scarabaeus punctatus Linnaeus, 1758. The following published infrasubspecific names are unavailable per ICZN Article 45.6.1: Pelidnota (Odontognathus) cuprea var. coerulea Ohaus, 1913; Pelidnota (Odontognathus) cuprea var. rufoviolacea Ohaus, 1913; Pelidnota (Odontognathus) cuprea var. nigrocoerulea Ohaus, 1913; Pelidnota pulchella var. fulvopunctata Ohaus, 1913; Pelidnota pulchella var. sellata Ohaus, 1913; Pelidnota pulchella var. reducta Ohaus, 1913; Pelidnota unicolor var. infuscata Ohaus, 1913. The following published species name is unavailable per ICZN Article 11.5: Neopatatra synonyma Moore & Jameson, 2013. The following published species name is unavailable per application of ICZN Article 16.1: Parhoplognathus rubripennis Soula, 2008. Synopsis of the pelidnotine scarabs (Coleoptera, Scarabaeidae, Rutelinae, Rutelini) 3 The following published species name is unavailable per application of ICZN Article 16.4.1: Strigidia testaceovirens argentinica Soula, 2006, Pelidnota (Strigidia) testaceovirens argentinica (Soula, 2006), and Pelidnota testaceovirens argentinica (Soula, 2006). The following published species names are unavailable per application of ICZN Article 16.4.2: Homonyx digennaroi Soula, 2010; Homonyx lecourti Soula, 2010; Homonyx mulliei Soula, 2010; Homonyx simoensi Soula, 2010; Homonyx wagneri Soula, 2010; Homonyx zovii Demez & Soula, 2011; Pelidnota arnaudi Soula, 2009; Pelidnota brusteli Soula, 2010; Pelidnota chalcothorax septentrionalis Soula, 2009; Pelidnota degallieri Soula, 2010; Pelidnota lavalettei Soula, 2008; Pelidnota lavalettei Soula, 2009; Pelidnota dieteri Soula, 2011; Strigidia gracilis decaensi Soula, 2008, Pelidnota (Strigidia) gracilis decaensi (Soula, 2008), and Pelidnota gracilis decaensi (Soula, 2008); Pelidnota halleri Demez & Soula, 2011; Pelidnota injantepalominoi Demez & Soula, 2011; Pelidnota kucerai Soula, 2009; Pelidnota malyi Soula, 2010: 36-37; Pelidnota mezai Soula, 2009; Pelidnota polita darienensis Soula, 2009; Pelidnota polita orozcoi Soula, 2009; Pelidnota polita pittieri Soula, 2009; Pelidnota punctulata decolombia Soula, 2009; Pelidnota punctulata venezolana Soula, 2009; Pelidnota raingeardi Soula, 2009; Pelidnota schneideri Soula, 2010; Pelidnota simoensi Soula, 2009; Pelidnota unicolor subandina Soula, 2009; Sorocha carloti Demez & Soula, 2011; Sorocha castroi Soula, 2008; Sorocha fravali Soula, 2011; Sorocha jeanmaurettei Demez & Soula, 2011; Sorocha yelamosi Soula, 2011; Xenopelidnota bolivari Soula, 2009; Xenopelidnota pittieri pittieri Soula, 2009. Due to unavailability of the name Pseudogeniates cordobaensis Soula 2009, we describe the species as intentionally new (Pseudogeniates cordobaensis Moore, Jameson, Garner, Audibert, Smith, and Seidel, sp. n.)

Efecto del uso de suelo en las hormigas (Formicidae: Hymenoptera) de Tikinmul, Campeche, México

The effect of land use on ants was compared in Tikinmul, Campeche, Mexico. The research was carried out in cedar monocultures and home gardens, during dry and wet seasons. TSBFmethod modified to agroforestry systems was used to collect ants. 37 species were collected, nine of which were exclusive to both systems, while 19 were present in both systems. A similarity (Sörensen index) of 60.4% between systems and 68% between seasons was observed. The Myrmecinae Subfamily with eight genera and 17 species was the most represented. Solenopsis geminata and Dorymyrmex sp. were dominant and indicator species of monoculture system. Ant density was higher in monocultures. A direct relationship between management intensity and species richness was not found. Litter amount appear to be the determinant factor to define ants abundance. Ants populations were affected indirectly by agrochemicals. Se comparó el efecto del uso de suelo sobre la mirmecofauna del ejido de Tikinmul, Campeche, México. El estudio se llevó a cabo en monocultivos de cedro y huertos caseros, durante la época seca y lluviosa. Para la colecta de especies se utilizó el método Tropical Soil Biology and Fertility (TSBF) modificado para sistemas agroforestales. Se encontraron un total de 37 morfoespecies, de las cuales nueve son exclusivas de cada uno de los dos sistemas, mientras 19 están presentes en ambos. Se observa una similitud (Sörensen) de 60.4% entre sistemas y 68% entre épocas. La subfamilia Myrmicinae con 8 géneros y 17 especies fue la mejor representada en el estudio. Solenopsis geminata y Dorymyrmex sp.fueron especies dominantes e indicadoras del monocultivo. La densidad de hormigas fue más alta en los monocultivos. No se encontró relación directa de la intensidad de manejo con la riqueza de especies. La cantidad de hojarasca se muestra como el factor determinante de abundancia de las hormigas. Los agroquímicos afectan de manera indirecta a sus poblaciones.