BACKGROUND Numerous well-documented associations occur among species of scuttle flies (Diptera: Phoridae) and ants (Hymenoptera: Formicidae), but examples of brood parasitism are rare and the mechanisms of parasitism often remain unsubstantiated. NEW INFORMATION We present two video-documented examples of ant brood (larvae and pupae) parasitism by scuttle flies. In footage from Estação Biológ...

The external ant community of Hospital Municipal de Morrinhos, in Morrinhos, Goiás State, was characterized by the low rates of richness, diversity, dominance and equity of species abundance. Pheidole sp.1, a polygynic species was numerically dominant in this environment, although it coexists with potentially competitive species. This ant species prevailed within all hospital departments and it...

Myrmicinosporidium durum, a parasitic fungus in several ant species, is reported from seven new hosts collected in the eastern United States, including Solenopsis invicta, Solenopsis carolinensis, Paratrechina vividula, Pheidole tysoni, Pheidole bicarinata, Pyramica membranifera, and Pogonomyrmex badius. Spores can be found in most ant body parts, are dark brown when mature, and clear to light ...

The Iberá Nature Reserve in northeastern Argentina protects one of the largest freshwater wetlands and reservoirs of species in South America. However, key invertebrate groups such as the ants (Hymenoptera: Formicidae) remain almost unknown.Themainobjective of thiswork was to study the ground ant diversity in four main habitats of Iberá: grasslands, savannas, forests, and ßoating islands. Pitfa...

Centrophthalnus subtilissinus sp. nov. is described and the new record of Ctenistes staudingeri Schaufuss from Saudi Arabia is given. Both species were collected in the under rock ant nest of Pheidole cf. pallidula.

Inverse problems are considered for the linear one-way wave equation or transport equation. In particular a number of inverse source reconstruction problems are considered. Problems which have both spatially and temporally varying coefficients are discussed. Both theoretical and numerical results are given for the methods examined. In particular it is shown that the source reconstruction is uni...