É importante o uso de uma estrutura isoladora térmica, na superfície de satélites artificiais, qu... more É importante o uso de uma estrutura isoladora térmica, na superfície de satélites artificiais, que permita acrescentar a funcionalidade de absorção de radiofrequência em três bandas utilizadas em radiocomunicações. Mitiga se assim a interferência, na banda de recepção do sinal enviado por antena com base na Terra para o satélite. O problema deve se à formação de produtos de intermodulação passiva, essencialmente os de terceira ordem, gerados por reflexões dos sinais de radiofrequência emitidos pelo satélite, nas zonas onde a resposta electromagnética do cobertor térmico é não linear, prejudicando seriamente as comunicações. É um problema cada vez mais premente devido à crescente complexidade das plataformas espaciais no que respeita ao número de antenas e transpositores, bem como ao incremento de portadoras, dada a necessidade de novos serviços entre os quais UHDTV.
Nesta dissertação projectámos uma estrutura de cobertor térmico que permitisse uma absorção de radiofrequência superior ou próxima de 90%, para casos de incidência normal, nas microondas, concretamente nas bandas C, Ku e Ka, usadas pelos satélites artificiais, sendo tal conceito respeitante a banda larga, dado que abrange as frequências de 3,7 GHz a 30 GHz.
Records of 11 species of three families of acalyptrate Diptera, Micropezidae (4 species), Clusiid... more Records of 11 species of three families of acalyptrate Diptera, Micropezidae (4 species), Clusiidae (4) and Periscelididae (3) are given from Portugal. Seven species are new faunal additions to this country, viz. Neria cibaria (Linnaeus, 1761), Neria octoannulata (Strobl, 1899) (both Micropezidae), Clusiodes albimanus (Meigen, 1830), C. caledonicus (Collin, 1912), C. gentilis (Collin, 1912) (all Clusiidae), Periscelis (Myodris) piricercus Carles-Tolrá & Verdugo Páez, 2009 and P. (Periscelis) sp. n. near P. winnertzii Egger, 1862 (Periscelididae). Distribution and biology of all recorded species are reviewed and supplemented with new information based on Portuguese material and notes on the taxonomy and variability of some species are appended.
Specimens of two undescribed species of Paraphamartania Engel, 1930, were collected in
Spain and ... more Specimens of two undescribed species of Paraphamartania Engel, 1930, were collected in Spain and Portugal in 2014 and 2015. Both new species are closely related but can easily be differentiated by characters of the wings, sternites, genitalia and genetics. It became clear that some important generic characters of Paraphamartania such as the spines on the tip of midtibiae, have been overlooked by previous authors and the current definition of this genus is not complete. A comparative study of Paraphamartania, Aphamartania Schiner, 1866 and Cophura Osten Sacken, 1887 showed that Paraphamartania is similar to the Nearctic genus Cophura and no clear characters besides geography are found to discriminate both genera. In contrast, Paraphamartania and Cophura are both easily distinguished from Aphamartania and from all other genera in the subfamily Brachyrhopalinae (sensu DIKOW, 2009). Two females of Paraphamartania stukei Geller-Grimm, 1997 have been collected in Portugal, these being the first records of the species for this country. DNA barcoding of both new species and one specimen of P. stukei was successful and showed significant genetic divergence between both new species (5,4 % p-distance in the COI marker gene) with only little intraspecific distance (0,1%, 0,7%). A key is provided to all species of Paraphamartania.
A new species of Canace Haliday, in Curtis, 1837 from Portugal is described. This species, relate... more A new species of Canace Haliday, in Curtis, 1837 from Portugal is described. This species, related to C. actites Mathis, 1982, is known so far from a single maritime locality near Lisbon. A key to species of the genus is also provided.
New European host records for the Acroceridae species Acrocera orbiculus (Fabricius) and Ogcodes ... more New European host records for the Acroceridae species Acrocera orbiculus (Fabricius) and Ogcodes reginae Trojan are reported. Acrocera orbiculus was reared from Amaurobius erberi (Keyserling), and O. reginae from Clubiona leucaspis (Simon) and Evarcha jucunda (Lucas). Where possible, DNA-barcodes are presented for reared endoparasitoids and their host specimens. Based on mitochondrial COI, the intraspecific genetic variability of 15 western Palaearctic A. orbiculus is discussed. Maximum likelihood analysis reveals two clades, though they have low statistical support and no distinct barcoding gap. Therefore, we consider all barcoded specimens of A. orbiculus to be a single biological species with a high degree of phenotypic plasticity regarding body size and coloration. Based on molecular and morphological evidence, Paracrocera kaszabi Majer, Paracrocera manevali Séguy and Paracrocera minuscula Séguy are placed in synonymy with A. orbiculus. The male of the Canary Islands endemic Acrocera cabrerae Frey is described for the first time.
The genus Platypygus Loew, 1844 is reviewed and a key to known species of the genus worldwide is ... more The genus Platypygus Loew, 1844 is reviewed and a key to known species of the genus worldwide is presented. All species are diagnosed and illustrated. The male genitalia of P. ridibundus and female genitalia of P. americanus are described for the first time. Some characters supporting the monophyly of the genus Platypygus are discussed and the Nearctic Cyrtisiopsis americanus (Melander) is restored to its original combination as Platypygus americanus. The type status of Platypygus bellus Loew, P. lativentris Loew, P. pumilio Loew, and P. turkmenorum Paramonov is clarified and a lectotype is selected for Platypygus kurdorum Paramonov. New country records are given for the following species: P. bellus (Greece); P. chrysanthemi (Israel, Jordan); P. kurdorum (Israel, Jordan, Syria); P. limatus (Nepal, Thailand); P. pumilio (Greece, Turkmenistan); P. ridibundus (Cyprus, Israel, Portugal), P. titanomedea (Jordan, Turkey).
Older catalogues on the Iberian Diptera fauna (CORTI 1903, ARIAS 1912) include only a few records... more Older catalogues on the Iberian Diptera fauna (CORTI 1903, ARIAS 1912) include only a few records of tachinids from Portugal. Recent checklists of Portuguese Tachinidae were provided by TSCHORSNIG & BÁEZ (2002) and TSCHORSNIG et al. (2004), but they are devoid of sources and meanwhile out-of-date. The present paper updates the Portuguese checklist, cites all original sources, and gives many new faunistic records, mainly based on the collecting effort and/or photos of the first three authors during the last years.
An updated figured synopsis of Portuguese Tachinidae is also maintained in the internet (see SILVA et al. 2013). SMIT & ZEEGERS (2002) gave a checklist for the islands of Madeira-archipelago. [...]
Three new species of the family Ulidiidae have been found in mainland Portugal; of them, Cephalia... more Three new species of the family Ulidiidae have been found in mainland Portugal; of them, Cephalia rufipes Meigen, 1826 and Herina gyrans (Loew, 1864) are recorded for the first time for Portugal and Seioptera vibrans (Linnaeus, 1758) for mainland Portugal. The second record of Myennis octopunctata (Coquebert, 1798) for Portugal and first for Santarém district is documented.
Tethina lusitanica sp. nov. from Portugal is described and illustrated. This “spotted-wing” new s... more Tethina lusitanica sp. nov. from Portugal is described and illustrated. This “spotted-wing” new species is closely related to Tethina pictipennis Freidberg and Beschovski, 1996. Besides the male terminalia features, it differs from the latter species, as well as from all congeners, mainly by some peculiar character reversals relating to chaetotaxy. T. lusitanica sp. nov. has been photographed and video recorded in nature. Additionally, Tethina illota (Haliday, 1838) is recorded for the first time from the Iberian Peninsula.
Boletín de la Sociedad Entomológica Aragonesa, Dec 31, 2012
"Two species of horsefly are recorded for the first time from the Iberian Peninsula: Atylotus ple... more "Two species of horsefly are recorded for the first time from the Iberian Peninsula: Atylotus plebeius (Fallén, 1817) and Haematopota scutellata (Olsufjev, Moucha & Chvála, 1964). Both species have been found in recent years in the Catalonian Pyrenees, where they reach the southern limit of their distributions. Atylotus plebeius is also recorded for the first time from the Pyrenees. The history of the confusion between this species and A. sublunaticornis (Zetterstedt, 1842) is discussed.
Key words: Diptera, Tabanidae, Atylotus plebeius, Haematopota scutellata, Atylotus sublunaticornis, first records, Iberian Peninsula, Pirineo catalán, Valle de Arán."
Records of 22 species of Conopidae from mainland Portugal are presented. 11 species are new for P... more Records of 22 species of Conopidae from mainland Portugal are presented. 11 species are new for Portugal. The theca of the only known European specimen of Leopoldius anatolii ZIMINA is illustrated. A list of the 25 species of Conopidae recorded so far from mainland Portugal is provided, together with a complete bibliography.
Key words: Diptera, Conopidae, faunistics, mainland Portugal, bibliography.
Foi apenas na última década que a comunidade científica concedeu à entomologia o estatuto pleno q... more Foi apenas na última década que a comunidade científica concedeu à entomologia o estatuto pleno que a mesma merece como ciência forense em casos de interesse judicial, considerando-a como um factor adicional, e frequentemente precioso, na avaliação circunstancial de mortes de causa desconhecida, nomeadamente na estimativa do intervalo post mortem (IPM). Os tecidos humanos, particularmente os pertencentes a cadáveres expostos ao ambiente, são atractivos para uma grande variedade de insectos sarcosaprófagos, que colonizam o cadáver em ondas sucessivas, de acordo com o estádio de decomposição apresentado pelo mesmo. Muitas destas espécies atravessam, durante o período de colonização, ciclos biológicos complexos, podendo o estudo dos seus padrões de desenvolvimento e estádios de maturação específicos contribuir para a estimativa do período mínimo IPM, nomeadamente em cadáveres decompostos ou naqueles em que se veio a desenvolver um processo de preservação tecidular tais como a mumificação ou a saponificação.
A Serra da Estrela contém em si um tesouro de biodiversidade oculto que passa despercebido a milh... more A Serra da Estrela contém em si um tesouro de biodiversidade oculto que passa despercebido a milhares de pessoas que todos os anos a visitam. É algo que merece ser protegido e mostrado às futuras gerações. Que perda seria para a Estrela, caso tal desaparecesse! Os leitores já começam a pensar que há assim de tão especial na Estrela relativamente a moscas...
Os dípteros da Familia Tachinidae, bem como os pertencentes a Rhinophoridae, Sarcophagidae, Calli... more Os dípteros da Familia Tachinidae, bem como os pertencentes a Rhinophoridae, Sarcophagidae, Calliphoridae, Muscidae, Anthomyiidae são moscas caliptratas – Calyptratae.
É importante o uso de uma estrutura isoladora térmica, na superfície de satélites artificiais, qu... more É importante o uso de uma estrutura isoladora térmica, na superfície de satélites artificiais, que permita acrescentar a funcionalidade de absorção de radiofrequência em três bandas utilizadas em radiocomunicações. Mitiga se assim a interferência, na banda de recepção do sinal enviado por antena com base na Terra para o satélite. O problema deve se à formação de produtos de intermodulação passiva, essencialmente os de terceira ordem, gerados por reflexões dos sinais de radiofrequência emitidos pelo satélite, nas zonas onde a resposta electromagnética do cobertor térmico é não linear, prejudicando seriamente as comunicações. É um problema cada vez mais premente devido à crescente complexidade das plataformas espaciais no que respeita ao número de antenas e transpositores, bem como ao incremento de portadoras, dada a necessidade de novos serviços entre os quais UHDTV.
Nesta dissertação projectámos uma estrutura de cobertor térmico que permitisse uma absorção de radiofrequência superior ou próxima de 90%, para casos de incidência normal, nas microondas, concretamente nas bandas C, Ku e Ka, usadas pelos satélites artificiais, sendo tal conceito respeitante a banda larga, dado que abrange as frequências de 3,7 GHz a 30 GHz.
Records of 11 species of three families of acalyptrate Diptera, Micropezidae (4 species), Clusiid... more Records of 11 species of three families of acalyptrate Diptera, Micropezidae (4 species), Clusiidae (4) and Periscelididae (3) are given from Portugal. Seven species are new faunal additions to this country, viz. Neria cibaria (Linnaeus, 1761), Neria octoannulata (Strobl, 1899) (both Micropezidae), Clusiodes albimanus (Meigen, 1830), C. caledonicus (Collin, 1912), C. gentilis (Collin, 1912) (all Clusiidae), Periscelis (Myodris) piricercus Carles-Tolrá & Verdugo Páez, 2009 and P. (Periscelis) sp. n. near P. winnertzii Egger, 1862 (Periscelididae). Distribution and biology of all recorded species are reviewed and supplemented with new information based on Portuguese material and notes on the taxonomy and variability of some species are appended.
Specimens of two undescribed species of Paraphamartania Engel, 1930, were collected in
Spain and ... more Specimens of two undescribed species of Paraphamartania Engel, 1930, were collected in Spain and Portugal in 2014 and 2015. Both new species are closely related but can easily be differentiated by characters of the wings, sternites, genitalia and genetics. It became clear that some important generic characters of Paraphamartania such as the spines on the tip of midtibiae, have been overlooked by previous authors and the current definition of this genus is not complete. A comparative study of Paraphamartania, Aphamartania Schiner, 1866 and Cophura Osten Sacken, 1887 showed that Paraphamartania is similar to the Nearctic genus Cophura and no clear characters besides geography are found to discriminate both genera. In contrast, Paraphamartania and Cophura are both easily distinguished from Aphamartania and from all other genera in the subfamily Brachyrhopalinae (sensu DIKOW, 2009). Two females of Paraphamartania stukei Geller-Grimm, 1997 have been collected in Portugal, these being the first records of the species for this country. DNA barcoding of both new species and one specimen of P. stukei was successful and showed significant genetic divergence between both new species (5,4 % p-distance in the COI marker gene) with only little intraspecific distance (0,1%, 0,7%). A key is provided to all species of Paraphamartania.
A new species of Canace Haliday, in Curtis, 1837 from Portugal is described. This species, relate... more A new species of Canace Haliday, in Curtis, 1837 from Portugal is described. This species, related to C. actites Mathis, 1982, is known so far from a single maritime locality near Lisbon. A key to species of the genus is also provided.
New European host records for the Acroceridae species Acrocera orbiculus (Fabricius) and Ogcodes ... more New European host records for the Acroceridae species Acrocera orbiculus (Fabricius) and Ogcodes reginae Trojan are reported. Acrocera orbiculus was reared from Amaurobius erberi (Keyserling), and O. reginae from Clubiona leucaspis (Simon) and Evarcha jucunda (Lucas). Where possible, DNA-barcodes are presented for reared endoparasitoids and their host specimens. Based on mitochondrial COI, the intraspecific genetic variability of 15 western Palaearctic A. orbiculus is discussed. Maximum likelihood analysis reveals two clades, though they have low statistical support and no distinct barcoding gap. Therefore, we consider all barcoded specimens of A. orbiculus to be a single biological species with a high degree of phenotypic plasticity regarding body size and coloration. Based on molecular and morphological evidence, Paracrocera kaszabi Majer, Paracrocera manevali Séguy and Paracrocera minuscula Séguy are placed in synonymy with A. orbiculus. The male of the Canary Islands endemic Acrocera cabrerae Frey is described for the first time.
The genus Platypygus Loew, 1844 is reviewed and a key to known species of the genus worldwide is ... more The genus Platypygus Loew, 1844 is reviewed and a key to known species of the genus worldwide is presented. All species are diagnosed and illustrated. The male genitalia of P. ridibundus and female genitalia of P. americanus are described for the first time. Some characters supporting the monophyly of the genus Platypygus are discussed and the Nearctic Cyrtisiopsis americanus (Melander) is restored to its original combination as Platypygus americanus. The type status of Platypygus bellus Loew, P. lativentris Loew, P. pumilio Loew, and P. turkmenorum Paramonov is clarified and a lectotype is selected for Platypygus kurdorum Paramonov. New country records are given for the following species: P. bellus (Greece); P. chrysanthemi (Israel, Jordan); P. kurdorum (Israel, Jordan, Syria); P. limatus (Nepal, Thailand); P. pumilio (Greece, Turkmenistan); P. ridibundus (Cyprus, Israel, Portugal), P. titanomedea (Jordan, Turkey).
Older catalogues on the Iberian Diptera fauna (CORTI 1903, ARIAS 1912) include only a few records... more Older catalogues on the Iberian Diptera fauna (CORTI 1903, ARIAS 1912) include only a few records of tachinids from Portugal. Recent checklists of Portuguese Tachinidae were provided by TSCHORSNIG & BÁEZ (2002) and TSCHORSNIG et al. (2004), but they are devoid of sources and meanwhile out-of-date. The present paper updates the Portuguese checklist, cites all original sources, and gives many new faunistic records, mainly based on the collecting effort and/or photos of the first three authors during the last years.
An updated figured synopsis of Portuguese Tachinidae is also maintained in the internet (see SILVA et al. 2013). SMIT & ZEEGERS (2002) gave a checklist for the islands of Madeira-archipelago. [...]
Three new species of the family Ulidiidae have been found in mainland Portugal; of them, Cephalia... more Three new species of the family Ulidiidae have been found in mainland Portugal; of them, Cephalia rufipes Meigen, 1826 and Herina gyrans (Loew, 1864) are recorded for the first time for Portugal and Seioptera vibrans (Linnaeus, 1758) for mainland Portugal. The second record of Myennis octopunctata (Coquebert, 1798) for Portugal and first for Santarém district is documented.
Tethina lusitanica sp. nov. from Portugal is described and illustrated. This “spotted-wing” new s... more Tethina lusitanica sp. nov. from Portugal is described and illustrated. This “spotted-wing” new species is closely related to Tethina pictipennis Freidberg and Beschovski, 1996. Besides the male terminalia features, it differs from the latter species, as well as from all congeners, mainly by some peculiar character reversals relating to chaetotaxy. T. lusitanica sp. nov. has been photographed and video recorded in nature. Additionally, Tethina illota (Haliday, 1838) is recorded for the first time from the Iberian Peninsula.
Boletín de la Sociedad Entomológica Aragonesa, Dec 31, 2012
"Two species of horsefly are recorded for the first time from the Iberian Peninsula: Atylotus ple... more "Two species of horsefly are recorded for the first time from the Iberian Peninsula: Atylotus plebeius (Fallén, 1817) and Haematopota scutellata (Olsufjev, Moucha & Chvála, 1964). Both species have been found in recent years in the Catalonian Pyrenees, where they reach the southern limit of their distributions. Atylotus plebeius is also recorded for the first time from the Pyrenees. The history of the confusion between this species and A. sublunaticornis (Zetterstedt, 1842) is discussed.
Key words: Diptera, Tabanidae, Atylotus plebeius, Haematopota scutellata, Atylotus sublunaticornis, first records, Iberian Peninsula, Pirineo catalán, Valle de Arán."
Records of 22 species of Conopidae from mainland Portugal are presented. 11 species are new for P... more Records of 22 species of Conopidae from mainland Portugal are presented. 11 species are new for Portugal. The theca of the only known European specimen of Leopoldius anatolii ZIMINA is illustrated. A list of the 25 species of Conopidae recorded so far from mainland Portugal is provided, together with a complete bibliography.
Key words: Diptera, Conopidae, faunistics, mainland Portugal, bibliography.
Foi apenas na última década que a comunidade científica concedeu à entomologia o estatuto pleno q... more Foi apenas na última década que a comunidade científica concedeu à entomologia o estatuto pleno que a mesma merece como ciência forense em casos de interesse judicial, considerando-a como um factor adicional, e frequentemente precioso, na avaliação circunstancial de mortes de causa desconhecida, nomeadamente na estimativa do intervalo post mortem (IPM). Os tecidos humanos, particularmente os pertencentes a cadáveres expostos ao ambiente, são atractivos para uma grande variedade de insectos sarcosaprófagos, que colonizam o cadáver em ondas sucessivas, de acordo com o estádio de decomposição apresentado pelo mesmo. Muitas destas espécies atravessam, durante o período de colonização, ciclos biológicos complexos, podendo o estudo dos seus padrões de desenvolvimento e estádios de maturação específicos contribuir para a estimativa do período mínimo IPM, nomeadamente em cadáveres decompostos ou naqueles em que se veio a desenvolver um processo de preservação tecidular tais como a mumificação ou a saponificação.
A Serra da Estrela contém em si um tesouro de biodiversidade oculto que passa despercebido a milh... more A Serra da Estrela contém em si um tesouro de biodiversidade oculto que passa despercebido a milhares de pessoas que todos os anos a visitam. É algo que merece ser protegido e mostrado às futuras gerações. Que perda seria para a Estrela, caso tal desaparecesse! Os leitores já começam a pensar que há assim de tão especial na Estrela relativamente a moscas...
Os dípteros da Familia Tachinidae, bem como os pertencentes a Rhinophoridae, Sarcophagidae, Calli... more Os dípteros da Familia Tachinidae, bem como os pertencentes a Rhinophoridae, Sarcophagidae, Calliphoridae, Muscidae, Anthomyiidae são moscas caliptratas – Calyptratae.
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Nesta dissertação projectámos uma estrutura de cobertor térmico que permitisse uma absorção de radiofrequência superior ou próxima de 90%, para casos de incidência normal, nas microondas, concretamente nas bandas C, Ku e Ka, usadas pelos satélites artificiais, sendo tal conceito respeitante a banda larga, dado que abrange as frequências de 3,7 GHz a 30 GHz.
Spain and Portugal in 2014 and 2015. Both new species are closely related but can easily be differentiated by
characters of the wings, sternites, genitalia and genetics. It became clear that some important generic
characters of Paraphamartania such as the spines on the tip of midtibiae, have been overlooked by previous
authors and the current definition of this genus is not complete.
A comparative study of Paraphamartania, Aphamartania Schiner, 1866 and Cophura Osten Sacken, 1887
showed that Paraphamartania is similar to the Nearctic genus Cophura and no clear characters besides
geography are found to discriminate both genera. In contrast, Paraphamartania and Cophura are both easily
distinguished from Aphamartania and from all other genera in the subfamily Brachyrhopalinae (sensu
DIKOW, 2009).
Two females of Paraphamartania stukei Geller-Grimm, 1997 have been collected in Portugal, these being
the first records of the species for this country. DNA barcoding of both new species and one specimen of P.
stukei was successful and showed significant genetic divergence between both new species (5,4 % p-distance
in the COI marker gene) with only little intraspecific distance (0,1%, 0,7%). A key is provided to all species
of Paraphamartania.
An updated figured synopsis of Portuguese Tachinidae is also maintained in the internet (see SILVA et al. 2013). SMIT & ZEEGERS (2002) gave a checklist for the islands of Madeira-archipelago. [...]
Key words: Diptera, Tabanidae, Atylotus plebeius, Haematopota scutellata, Atylotus sublunaticornis, first records, Iberian Peninsula, Pirineo catalán, Valle de Arán."
Key words: Diptera, Conopidae, faunistics, mainland Portugal, bibliography.
Nesta dissertação projectámos uma estrutura de cobertor térmico que permitisse uma absorção de radiofrequência superior ou próxima de 90%, para casos de incidência normal, nas microondas, concretamente nas bandas C, Ku e Ka, usadas pelos satélites artificiais, sendo tal conceito respeitante a banda larga, dado que abrange as frequências de 3,7 GHz a 30 GHz.
Spain and Portugal in 2014 and 2015. Both new species are closely related but can easily be differentiated by
characters of the wings, sternites, genitalia and genetics. It became clear that some important generic
characters of Paraphamartania such as the spines on the tip of midtibiae, have been overlooked by previous
authors and the current definition of this genus is not complete.
A comparative study of Paraphamartania, Aphamartania Schiner, 1866 and Cophura Osten Sacken, 1887
showed that Paraphamartania is similar to the Nearctic genus Cophura and no clear characters besides
geography are found to discriminate both genera. In contrast, Paraphamartania and Cophura are both easily
distinguished from Aphamartania and from all other genera in the subfamily Brachyrhopalinae (sensu
DIKOW, 2009).
Two females of Paraphamartania stukei Geller-Grimm, 1997 have been collected in Portugal, these being
the first records of the species for this country. DNA barcoding of both new species and one specimen of P.
stukei was successful and showed significant genetic divergence between both new species (5,4 % p-distance
in the COI marker gene) with only little intraspecific distance (0,1%, 0,7%). A key is provided to all species
of Paraphamartania.
An updated figured synopsis of Portuguese Tachinidae is also maintained in the internet (see SILVA et al. 2013). SMIT & ZEEGERS (2002) gave a checklist for the islands of Madeira-archipelago. [...]
Key words: Diptera, Tabanidae, Atylotus plebeius, Haematopota scutellata, Atylotus sublunaticornis, first records, Iberian Peninsula, Pirineo catalán, Valle de Arán."
Key words: Diptera, Conopidae, faunistics, mainland Portugal, bibliography.