Dinoponera Roger 1861 has been revised several times. However, species limits remain questionable due to limited collection and undescribed males. We re-evaluate the species boundaries based on workers and known males. We describe the new species Dinoponera hispida from Tucuruí, Pará, Brazil and Dinoponera snellingi from Campo Grande, Mato Grosso do Sul, Brazil and describe the male of Dinoponera longipes Emery 1901. Additionally, we report numerous range extensions with updated distribution maps and provide keys in English, Spanish and Portuguese for workers and known males of Dinoponera. ResumenEl género Dinoponera Roger 1861 ha sido revisado varias veces. Sin embargo, la distribución geográfica de las especies de este género todavía es cuestionable debido a colecciones limitadas, y a que en general los machos continúan sin descripción. Reevaluamos los límites geográficos de las especies utilizando caracteres merísticos y morfométricos basados en obreras y machos conocidos. Describimos las nuevas especies Dinoponera hispida de Tucuruí, Pará, Brasil, y Dinoponera snellingi de Campo Grande, Mato Grosso do Sul, Brasil, y describimos el macho de Dinoponera longipes Emery 1901. Además, reportamos numerosas extensiones nuevas de las distribuciones geográficas con sus respectivos mapas actualizados, y proporcionamos claves de identificación en inglés, español, y portugués para las obreras y los machos conocidos del género Dinoponera. ReseARCH ARtiClePaul A. Lenhart et al. / Journal of Hymenoptera Research 31: 119-164 (2013) 120 Resumo O género Dinoponera Roger1861, é tem revisados varios vezes. No entanto, a clarificação das especies ainda segue questionável devido a um coleção limitado, e a que em geral os representantes do sexo masculino continuam sem descrição. Reavaliamos os limitas de espécies utilizado caráteres merísticos e morfométricos, baseado em operários e machos conhecidos. Descrevemos novas espécies Dinoponera hispida de Tucuruí, Para, Brasil e Dinoponera snellingi de Campo Grande, Mato Grosso do Sul, Brasil, e descrevemos o macho de Dinoponera longipes Emery 1901. Además, reportamos distribuições geográficas com seus respetivos mapas atualizados, e proporcionamos chaves de identificação em inglês, espanhol, e português para operários e machos conhecidos do género Dinoponera.

More than four decades have passed since the completion of the checklist by Moser and Blum (1960) of the ants of Louisiana. This research represents a significant contribution to and an update of their work. This report is the first-ever comprehensive assessment of the formicid fauna of Louisiana. One hundred thirty-two species from 40 genera and nine subfamilies were found. Information on how Louisiana ant fauna compares to that of adjacent states and Nearctic fauna are provided. Interesting results include the identity of exotic and pestiferous species, missing species, species lost, and previously unreported species.

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Due to Virginia’s geographic location, topographic variability, and diversity of physiographic provinces, the state ranks as one of the most biodiverse areas in the US. Virginia’s myrmecofauna, however, has been insufficiently studied and is not well known. Here we present the first comprehensive list of the ants of Virginia and provide county-level distributions for all taxa. With taxonomic updates taken into account, review of published records revealed that 130 species have been reported from the state. We add another 34 species based on newly collected materials, review of museum and personal collections, and online databases. At present, 164 species and morphospecies, including 15 ant exotics, are known to occur in the state. Another 12 species are provisionally excluded from the list as they represent distribution anomalies, or are based on erroneous records. The work presented here is an initial step towards a more complete treatment of the identification, taxonomy, and natural history of the ant fauna of Virginia.

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