Open Access

This contribution adds data to the conservation and distribution of Histeridae species (Coleoptera) in the Neotropical region through a survey of Brazil’s South region. More specifically, it provides: i) a list of local Histeridae species; ii) a list of species that are inside Conservation Units in southern Brazil; iii) biotic (biome, ecoregion and associations/affinities) and abiotic information (altitude and month of occurrence) for each species. In total, 66 genera and 164 histerid beetle species were recorded, distributed in seven subfamilies and 11 tribes. Among these, one genus and three species are new records for the region. Fifty percent of the species are known from a single geographic record. The Atlantic Forest is the richest biome in the South, in terms of number of species, and the Alto Paraná Atlantic forest is the richest ecoregion. Carcinops (s. str.) troglodytes (Paykull), Euspilotus (Hesperosaprinus) azureus (Sahlberg) and Omalodes (s. str.) angulatus (Fabricius) were recorded every month of the survey. Species’ richness was higher in October, December and January. Of the species recorded, 45 (27% of the total) are legally protected by Conservation Units in southern Brazil. Twenty-seven percent of the species recorded are associated with live animals. Collectively, the data presented here is a contribution to the taxonomic catalog of the Brazilian fauna. ZooBank registration. urn:lsid:zoobank.org:pub:C98D50BA-2F29-4B1D-B396-16F20054E942

A new species of Acmaeodera Eschscholtz, 1829, A. raschkoi Westcott (Coleoptera: Buprestidae), is described from southern Nevada, USA, and compared to four other species in the genus. Its habitat and means of capture are discussed in detail. ZooBank registration. urn:lsid:zoobank.org:pub:6EA78E6C-AD58-470B-9E9B-2815EA0B9340

A team of experienced lepidopterists sampled the butterfly fauna of Peru’s Cosñipata Region from 400 to 4,000 m elevation for more than a decade (7,440 field person hours) and supplemented this sample with data from museum specimens and the scientific literature. An annotated checklist of Cosñipata Riodinidae (Lepidoptera: Papilionoidea) documents 398 species, which represents 29% of the world Riodinidae fauna. For each, it lists sample abundance, adult behavior, elevation, and temporal distribution. In the fieldwork sample, 75 species (20.9%) were sampled once and 39 (9.8%) were not encountered (collected or imaged by others). A riodinid species of median abundance was sampled an average of once every 826 field person-hours. Sampled sex ratios were 81.2% male, but were not statistically higher in species in which male perching behavior was observed. We document examples of conspicuous geographic variation in the time of male perching behavior. Species richness is greatest at low elevation and at the transition between the dry and wet seasons. There is little evidence that the community is composed of species restricted to narrow elevational bands or restricted in the adult stage to a single season. Compared with Lycaenidae, Riodinidae are significantly more restricted to lowland habitats and were sampled 2.5 times as frequently with a mean number of individuals per species more than twice as great as that of Lycaenidae. ZooBank registration. urn:lsid:zoobank.org:pub:51233294-9511-41E4-980F-5A0D9080C680

Use of a combination of a novel pitfall trap setup and Lindgren funnel traps at Fakahatchee Strand Preserve State Park resulted in the collection of few specimens due to a higher than normal ground water level. Despite this, some unusual specimens of Arachnida and Diplopoda were found, including the second known record of Mysmena incredula Gertsch and Davis, 1936 (Araneae: Mysmenidae) in Florida. ZooBank registration. urn:lsid:zoobank.org:pub:BB76066E-EA16-4A19-8A3E-54D3BE5F94E7

Lectotypes are designated for Acmaeodera amabilis Horn, 1878 and Acmaeodera disjuncta Fall, 1899 (Coleoptera: Buprestidae). The defining characters of Acmaeodera opacula LeConte, 1858 are compared with those of A. disjuncta Fall, 1899, as well as habitat and host plant. Acmaeodera disjuncta is synonymized with A. opacula. The distinguishing characters of congeners whose general appearance at times can resemble A. opacula are discussed, and a new state record for Mexico is provided for A. opacula. ZooBank registration. urn:lsid:zoobank.org:pub:AA3C1BA7-9BF8-45F7-84D6-362B52305931