TL;DR: M. aspericornis (L. Kurwongbah) proved to be the most effective Queensland predator and exhibited an elevated reproductive rate at 20-25 degrees C and has been selected for small-scale field trials in Queensland.
Abstract: Six of seven species of Mesocyclops copepods, collected from northeastern Australia, showed potential as biological control agents of Aedes mosquitoes. Methods of laboratory evaluation included predation trials at different larval mosquito densities, population growth rates at different temperatures, and laboratory cage simulations. The predation efficacy of Mesocyclops aspericornis, M. australiensis, and M. mb1 from southern Queensland, and M. darwini, M. mb2, M. notius and M. mb3 from northern Queensland were compared with M. aspericornis (used successfully in French Polynesia) against laboratory populations of Aedes aegypti (L.), Culex quinquefasciatus Say, and Anopheles farauti Laveran (No. 1). M. aspericornis (L. Kurwongbah) proved to be the most effective Queensland predator and exhibited an elevated reproductive rate at 20-25 degrees C. M. darwini was less efficient as a predator but was more fecund at 25-35 degrees C. Based on these evaluations, M. aspericornis (L. Kurwongbah) has been selected for small-scale field trials in Queensland.
TL;DR: M Mesocyclops darwini was the single taxon whose relationships showed conflict among the previous reconstructions using only morphological characters and the tree inferred from the combined data set, with the result supporting monophyly of Old World taxa.
TL;DR: Cyclopid copepods from samples of fauna associated with aquatic macrophytes and plancton obtained in lotic and lentic environments were obtained from the upper Paraná River floodplain and Thermocyclops minutus is the most abundant, especially in lentic habitats.
Abstract: Cyclopid copepods from samples of fauna associated with aquatic macrophytes and plancton obtained in lotic and lentic environments were obtained from the upper Parana River floodplain (in the states of Parana and Mato Grosso do Sul, Brazil). Macrophytes were collected in homogeneous stands and washed. Plankton samples, taken from the water column surface and bottom, were obtained using a motor pump, with a 70 microns mesh plankton net for filtration. Twelve taxa of Cyclopidae were identified. Among them, Macrocyclops albidus albidus, Paracyclops chiltoni, Ectocyclops rubescens, Homocyclops ater, Eucyclops solitarius, Mesocyclops longisetus curvatus, Mesocyclops ogunnus, and Microcyclops finitimus were new finds for this floodplain. Eight species were recorded exclusively in aquatic macrophyte samples. Among these species, M. albidus albidus and M. finitimus presented greatest abundances. Only four species were recorded in plankton samples, and Thermocyclops minutus and Thermocyclops decipiens are limited to this type of habitat. Among these four species, T. minutus is the most abundant, especially in lentic habitats.
TL;DR: In general, the distal arthrodial membrane of a segment appears to have been more labile during evolutionary history of the maxilliped than has the ventral seta which inserts on that segment.
TL;DR: The Australian species of Acanthocyclops Kiefer, DiacyclopsKiefer and Australocyclop, gen. nov. are revised and the following species are recognized.
Abstract: The Australian species of Acanthocyclops Kiefer, Diacyclops Kiefer and Australocyclops, gen. nov. are revised and the following species are recognized: Acanthocyclops robustus (Sars), Diacyclops bisetosus (Rehburg), D. cryonastes, sp. nov., Australocyclops australis (Sars), A. palustrium, sp. nov. and A. similis, sp. nov. All are described, figured and discussed and keys are provided for their identification.