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Diversity of biting midges of the genus Culicoides Latreille (Diptera: Ceratopogonidae) in the area of the Yacyretá Dam Lake between Argentina and Paraguay.
The Culicoides communities have been analyzed between 1993/1998 in the area influenced by the Yacyret Dam Lake (Paran River, Argentina-Paraguay) and the taxonomic structure of communities was constant during the study period, with highest values of species richness and species diversity recorded during 1993/1994.
The bloodsucking biting midges of Argentina (Diptera: Ceratopogonidae).
A key is presented for the identification of the adults of 54 species of bloodsucking ceratopogonids, 51 of which are known inhabitants of Argentina, and Culicoides uruguayensis Ronderos, C. pifanoi
Five new species of Culicoides Latreille described from Colombia, yielding a new species list and country records (Diptera: Ceratopogonidae).
The following five new species of Culicoides from Colombia are described, illustrated and placed to subgenus or species group: Culicoides antioquiensis, Culicoides gabrieli, Culicoides inermis,
A new species of Dasyhelea Kieffer (Diptera: Ceratopogonidae) from Brazilian Amazonia.
A new species from Manaus, Amazonas, Brazil, Dasyhelea eloyi Díaz & Ronderos, is described, illustrated and photomicrograph as larva, pupa and male and female adults based on examination with
Biting Midges of the Dasyhelea cincta group from Patagonia (Diptera, Ceratopogonidae)
This revision of the Dasyhelea cincta group of biting midges in Patagonia recognizes two previously described species and a new species, Dasy helea filiductus Diaz & Spinelli, from Argentinean Patagonic, which is recorded for the first time from Argentina.
The immature stages of the biting midge
The fourth instar larva and pupa of Culicoides debilipalpis Lutz, 1913 are described, illustrated, and photomicrographed from material collected in tree-holes of Salix sp. in Entre Rios Province,
Preparation and Mounting of Biting Midges of the Genus Culicoides Latreille (Diptera: Ceratopogonidae) to be Observed with a Scanning Electron Microscope
Techniques tending to the preservation of the original morphology and the mounting of species of Culicoides for SEM, especially larvae and adults, are discussed, with Nembutal was the most efficient of the relaxing drugs used.
A new method using acid to clean and a technique for preparation of eggs of biting midges (Diptera: Ceratopogonidae) for Scanning Electron Microscope
In the new procedure eggs in different states, with different ultra structures of the exochorion, were immersed in 10% glycolic acid and 20 % mandellic acid, and retained their natural form under vacuum long enough to yield good microphotographs of the outer layer of the chorion.