The previously monotypic genera Endroedianibe Chalumeau and Hispanioryctes Howden and Endrödi from the island of Hispaniola are revised. Endroedianibe xerozoyphius Ratcliffe and Cave, new species, (Pentodontini) and Hispanioryctes paulseni Ratcliffe and Cave, new species, Hispanioryctes rugulopygus Ratcliffe and Cave, new species, and Hispanioryctes sculptilis Ratcliffe and Cave, new species, (Oryctini) from Haiti and the Dominican Republic are described. Supporting illustrations, diagnoses, and keys to the species in each genus are provided. A key to the 11 genera of Dynastinae in Hispaniola is given.

Host plant data is provided for 23 species of cryptocephaline leaf beetles in Kentucky. The degree of beetle - plant association is quantified from field observations to laboratory feeding, mating and oviposition. New beetle - plant associations are reported at the following levels: 16 at the plant species level, eight at the plant genus level, and six at the plant family level. The most cryptocephaline species - plant family associations were with Fabaceae, Salicaceae, Anacardiaceae, Clusiaceae, and Fagaceae.

The ambrosia beetle genus Camptocerus Dejean is native to the Neotropics and ranges from northern Argentina to Veracruz, Mexico. Species are rarely collected and there is a corresponding paucity of biological information. We report observations of Camptocerus attracted to felled Protium Burm. f. in southeastern Peru. Host colonization, aggregation, leaf feeding, courtship, mating, and predation are reported for four species. These species aggregated to leaves surrounding potential hosts, bored into leaves, and fed, all of which is unusual behavior for scolytines. Males competed for mates with physical contact. Ant predation killed ∼50% of colonizing individuals for one species.

Meringodes Wappes and Lingafelter, a monotypic new genus of Rhopalophorini, is described from Santa Cruz Department, Bolivia. Meringodes is most similar to Disaulax Audinet-Serville, although it also possesses characters of Thalusia Thomson and Cosmisoma Audinet-Serville. A diagnosis and description of the genus is given and a new species, Meringodes solangeae Wappes and Lingafelter, is described. Images of both Disaulax hirsuticornis (Kirby) and M. solangeae are included to facilitate identification.

Bembidion (Testedium) capito J. Müller, 1918 is recorded as a new country record for Turkey, expanding its range westward in the southwestern Palaearctic region. Synonymies, distribution, and chorotypes are given for the four species of the Bembidion Latreille subgenus Testedium Motschulsky, 1864 now known to occur in Turkey. A key to the Turkish species of Testedium is presented.

An ecological study of the geographical distribution of aquatic Adephaga and Polyphaga (Coleoptera) in the mountains of northern Tunisia was carried out with an analysis of the effect of altitude on the distribution of 123 species collected from 64 sampling sites. Species richness was analyzed at different altitudinal levels and the indicator species were determined by establishing their altitude profile in terms of reciprocal species-factor information. Species richness decreases with increasing altitude. Thirty representative species are placed into three groups: species present along the entire altitudinal gradient; species present at high altitude; and species occurring at low altitude.

The southern South American genus Hoplopygothrix Schürhoff is augmented with the description of a new species from Bolivia. The genus now contains two species, Hoplopygothrix atropurpurea (Schaum) and Hoplopygothrix boliviensis Ratcliffe, new species. Illustrations accompany the description, and a key is provided to identify the species.

The purpose of this study is to describe the differences in the mouthparts of three Mexican species of Oniticellini that make use of different trophic resources. Euoniticellus intermedius (Reiche) is a coprophage par excellence, Attavicinus monstrosus (Bates) is a specialist in dry particles, and Liatongus rhinocerulus (Bates), a saprophage, is sometimes observed in excrement and on small cadavers, but mainly on rotting mushrooms. The results show no substantial structural differences among the species studied, though for each one, particular characteristics are evident.