We found that the ingestion of Cryptococcus neoformans by Drosophila melanogaster resulted in the death of the fly but that the ingestion of Saccharomyces cerevisiae or the nonpathogenic Cryptococcus kuetzingii or Cryptococcus laurentii did not. The C. neoformans protein kinase A and RAS signal transduction pathways, previously shown to be involved in virulence in mammals, also played a role in...

abstract in order to identify the fruit flies of the genus tephritis laterille, 1804 (diptera: tephritidae) in ajabshir region- east azarbaijan province, a faunistic study was conducted during 2009-2010. in total, seven species were identified which all of them are as new records for the studying area and one species marked with an asterisk is being newly reported for iran insect fauna: tephrit...

Organisms and the symbionts they harbor may experience opposing forces of selection. In particular, the contrasting inheritance patterns of maternally transmitted symbionts and their host's nuclear genes can engender conflict among organizational levels over the optimal host offspring sex ratio. This study uses a male-killing Wolbachia endosymbiont and its host Drosophila innubila to experiment...

Control of the Riverine (Palpalis) group of tsetse flies is normally achieved with stationary artificial devices such as traps or insecticide-treated targets. The efficiency of biconical traps (the standard control device), 1×1 m black targets and small 25×25 cm targets with flanking nets was compared using electrocuting sampling methods. The work was done on Glossina tachinoides and G. palpali...

Killing appears to perpetuate itself even in the absence of retaliation. This phenomenon may occur in part as a means to justify prior killing and so ease the threat of prior killing. In addition, this effect should arise particularly when a killer perceives similarity to the victims because similarity should exacerbate threat from killing. To examine these ideas, the authors developed a bug-ki...

Currently, the Neotropical genus Lepidiella Enderlein, 1937 comprises ten species, only one of them recorded from Brazil. In this paper, two new species of this genus are described from the Atlantic Rainforest of the state of Espírito Santo, Brazil. Lepidiella robusta sp. nov. can be distinguished from all known species by the relative size of the first flagellomere, twice as long the second. L...

A list of world species for subgenera of Philosepedon Eaton, including Philosepedon s. str., Trichosepedon Krek, and Philothreticus Krek is given, and the subgenus Bahisepedon subgen. nov. is proposed to include some western hemisphere species. Philosepedon wagneri nom. nov. is proposed to replace P. orientale Wagner, a homonym of P. orientale Krek. Two new species from Europe, Philosepedon dum...