RESUMO
A new species of Nilotanypus Kieffer is described and illustrated based on male, pupa and larva. Nilotanypus yanomami sp. n. was collected at madicolous system in a mountainous region of northern Amazonia. Additionally, the identification key for males is updated and a distribution map for the Neotropical species is provided.
Assuntos
Chironomidae , Dípteros , Animais , Brasil , Larva , Masculino , PupaRESUMO
Sæther (1981) erected the genus Diplosmittia based on a species from Saint Lucia and Saint Vincent in the British West Indies. The genus was revised by Pinho et al. (2009). To date, the genus comprises ten species: Diplosmittia harrisoni Sæther, 1981; D. carinata Sæther, 1985; D. recisus Sæther, 1988; D. beluina Andersen, 1996; D. forficata Andersen, 1996; D. plaumanni Pinho, Mendes Andersen, 2009; D. boraceia Pinho, Mendes Andersen, 2009; D. aragua Pinho, Mendes Andersen, 2009; D. cerayma Pinho, Mendes Andersen, 2009; and D. caribensis Wiedenbrug Silva, 2016. Diplosmittia sasai Makarchenko Makarchenko, 2005 was placed as a synonym of Pseudosmittia mathildae Albu, 1968 by Makarchenko Makarchenko (2008). Except for D. carinata from Michigan, U.S.A., all species are Neotropical and mostly recorded from the Caribbean and northern part of South America. During field work in a remote mountainous region in the Brazilian Amazon, a unique new species with the gonostylus split into three parts was collected and is described and figured below. In addition, new records of D. plaumanni are provided.
Assuntos
Chironomidae , Dípteros , Animais , BrasilRESUMO
Five new species of Polypedilum from mountains of the Atlantic Forest, Southeastern Brazil, are described and illustrated as adult male. Two new species belong to the subgenus Polypedilum s. str.: Polypedilum (Polypedilum) caete sp. n. and P. (P.) aymbere sp. n. and three new species belong to the subgenus Tripodura: P. (Tripodura) yvatekaty sp. n., P. (T.) goiocoio sp. n. and P. (T.) ybytyra sp. n.
Assuntos
Chironomidae , Dípteros , Distribuição Animal , Estruturas Animais , Animais , Tamanho Corporal , Brasil , Florestas , Masculino , Tamanho do ÓrgãoRESUMO
Thin layers of water running over rocky surfaces are characteristic of madicolous habitats, which harbor a peculiar Chironomidae community. However, information on the identity, distribution, and ecology of madicolous chironomids in the Neotropical region are still sparse. The main purpose of this research is to reveal and contribute to the ecology of madicolous Chironomidae species, especially regarding their altitudinal distribution in the Atlantic Forest. Sampling was performed using our own designed emergence traps deployed from 0 to 2700 m a.s.l. in 70 sites in three mountains in southeastern Brazil. Sixty taxa of chironomids were collected and identified, of which only 22 are known to science. Most of the species showed a wider distribution than previously known, both in terms of geographic and altitudinal ranges, while others showed significant association with particular altitudinal bands (as evidenced by the indicator species analysis). Atlantic Forest mountainous regions are known to harbor one of the richest fauna in the world and have been suffering from several types of environmental impacts, including climate change, which will especially affect taxa living in specialized habitats. The narrow range of tolerance to environmental conditions verified for mountain species, and the fact that many of them are rare and endemic, make the conservation efforts in these areas indispensable.
RESUMO
In this second part of the study about Brazilian Pseudochironomini Sæther (Diptera: Chironomidae: Chironominae), seven new species are described and illustrated. Three species belong to the genus Pseudochironomus; they are: Pseudochironomus capivara sp. n., Pseudochironomus ariquemis sp. n. and Pseudochironomus boraceia sp. n. all are described from males, the first as pupa, the second as larva and pupa also. Four species belong to Riethia: Riethia cauame sp. n., Riethia fazzari sp. n., Riethia galilei sp. n. and Riethia pantera sp. n. all described as male. Except for R. fazzari sp. n. and P. boraceia sp. n. collected in São Paulo State, the remaining species were collected in Amazon region. A key of males to known species of Brazilian Pseudochironomini is given.
Assuntos
Chironomidae , Animais , Brasil , Dípteros , Larva , Masculino , PupaRESUMO
Podonomus amarali sp. n. is described from male, female, larva and pupa collected in the Brazilian Atlantic Highlands. The new species belongs to the albinervis group, which comprises eight Andean species.
Assuntos
Chironomidae , Animais , Brasil , Feminino , Florestas , Larva , Masculino , PupaRESUMO
Tanytarsini (Diptera: Chironomidae: Chironominae) collected from madicolous habitats in Brazil are analyzed, and three new species of Tanytarsus van der Wulp are described and illustrated: T. angelae sp. n. and T. alaidae sp. n. as adult male and T. alienus sp. n. as male and female. New records of another Brazilian Tanytarsus species are also presented, and immature stages of Paratanytarsus silentii Trivinho-Strixino are described.