A new species of Atrichopogon (Atrichopogon) Kieffer (Diptera: Ceratopogonidae), redescription and first record from Argentina of Atrichopogon (A.) eucnemus and Atrichopogon (A.) woodfordi by Macfie.

A new species of the subgenus Atrichopogon (Atrichopogon) Kieffer without distinctive pigmented wings is described and illustrated based on males and females: A. (A.) rufiventris.

Stilobezzia Kieffer (Diptera: Ceratopogonidae) from the Brazilian Amazon: three new species, redescription of S. (Stilobezzia) maculata Lane and new records.

Three new species of Stilobezzia Kieffer, 1911 are described and illustrated from the Brazilian Amazon, two in the nominotypical subgenus Stilobezzia: S. (Stilobezzia) brasiliensis n. sp.

Redescription of Stilobezzia (Stilobezzia) albicoxa Lane amp; Forattini, 1956 with new synonymy (Diptera: Ceratopogonidae).

Stilobezzia Kieffer, 1911 is a diverse genus of predaceous Ceratopogonidae (Ceratopogoninae: Ceratopogonini) with 349 species recognized worldwide (Borkent Dominiak 2020). The genus has four subgenera, three occurs in Brazil, where Stilobezzia s. str.

Schizonyxhelea thomsenae (Wirth), description of the pupa and first records from Argentina, Brazil and Peru (Diptera: Ceratopogonidae).

The pupa of Schizonyxhelea thomsenae (Wirth) is described and illustrated from material collected in Misiones province, Argentina. A key for the four known species of pupae of Schizonyxhelea is given, a diagnosis and photographs of the adult are also provided, and the geographic distribution of the species in the Neotropical region is enlarged including first records from Argentina, Brazil and Peru based mainly on adult specimens.

Synanthropy and Community Structure of Ceratopogonidae From the Northeast of Buenos Aires Province, Argentina.

Synanthropy and community structure of Ceratopogonidae in temperate Argentina were compared across an urbanization gradient to assess the impact of urbanization on species diversity and abundance. Adult ceratopogonids were collected from one natural, one Peri-urban, and two urban sites monthly for 12 months using CDC light traps. Nine-hundred one individuals belonging to nine genera and 59 species were collected.

The fate of endemic insects of the Andean region under the effect of global warming.

Three independent but complementary lines of research have provided evidence for the recognition of refugia: paleontology, phylogeography and species distributional modelling (SDM). SDM assesses the ecological requirements of a species based on its known occurrences and enables its distribution to be projected on past climatological reconstructions. One advantage over the other two approaches is that it provides an explicit link to environment and geography, thereby enabling the analysis of a large number of taxa in the search for more general refugia patterns.

Two new species of the subgenus Acanthohelea of Stilobezzia from Brazilian Amazonia (Diptera: Ceratopogonidae).

The predaceous genus Stilobezzia Kieffer is a large, diverse group of Ceratopogonidae that is worldwide in distribution except for Antarctica and some islands (Borkent 2014). Adult females are important predators on other small insects, and the immature stages are found in a wide variety of aquatic and semiaquatic habitats, including streams, lakes and pond margins, puddles, swamps, rice fields, rock pools, and tree holes (de Meillon and Wirth 1991; Cazorla et al. 2006).

New contributions to the knowledge of the immatures of Stilobezzia punctulata Lane and Stilobezzia fiebrigi Kieffer (Diptera: Ceratopogonidae).

The fourth instar larva of Stilobezzia punctulata Lane is described for the first time and the one of Stilobezzia fiebrigi Kieffer is redescribed. They are illustrated and photomicrographed from material collected in different aquatic environments of the province of Corrientes, Argentina. Both species show features typical to carnivorous-predatory larva.

A new predaceous midge of the Palpomyia tibialis group from northeastern Argentina (Diptera: Ceratopogonidae).

Palpomyia iberaensis n. sp., was collected by Malaise trap in the province of Corrientes, Argentina and its female and attached male genitalia are described and illustrated.