Although density-dependent benefits to hemipterans from ant tending have been measured many times, few studies have focused on integrated effects such as interactions between ant tending, natural enemy density, and hemipteran density. In this study, we tested whether the invasive mealybug Phenacoccus solenopsis is affected by tending by ghost ants (Tapinoma melanocephalum), the presence of para...

Ilyphagus Chamberlin, 1919 includes abyssal, fragile benthic species. Most species have large cephalic cages but chaetae are brittle and easily lost which may explain why the original definition included species with a cephalic cage or without it. The type species, Ilyphagus bythincola Chamberlin, 1919, together with another species (Ilyphagus pluto Chamberlin, 1919) were described as lacking a...

Abstract Several individuals of free-living copepods were found in tap water the Unidad Académica Mazatlán (Instituto de Ciencias del Mar y Limnología). These turned out to belong a new species freshwater genus Paracyclops. Paracyclops poppei , P. hirsutus and chiltoni only reported Mexican ecosystems, record fiersi sp. nov. is fourth confirmed from Mexico. The seems be related hardingi bromeli...