SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Why are the subfamily relationships of Triatominae (Hemiptera: Reduviidae) important?-This question is really two: Is Triatominae a phylogenetically valid monophyletic subfamily; and, if it is, to what other reduviid subfamilies is it most closely related? If the answer to the first question is Yes, then what one knows about one member of Triatominae may be true for other members; if the answer is No, then no such prediction can be made. Because many members of Triatominae are of medical importance, such predictions are vitally (literally) important. For the same reason, knowledge of the subfamily relatives of medically important triatomines is important: For here too predictions about one related member can be based on knowledge of others. These points...

New records of plants fed upon by the uncommon Heteropterans Cyrtocoris egeris Packauskas & Schaefer and C. trigonus (Germar) (Hemiptera: Cyrtocoridae) in South America

Palavras-chave: Harpactocorinae; Linshcosteus; Phylogeny; Peiratinae; Reduviinae.

Ano: 2005

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0328-03812005000100002

Schaefer,Carl W.; Panizzi,Antônio R.; Coscarón,Maria C..

During March 2000, nymphs and adults of the cyrtocorid bugs Cyrtocoris egeris Packauskas & Schaefer and C. trigonus (Germar) were observed on two different plants at two different localities. In Brazil (Londrina, Paraná State) adult C. trigonus were found feeding on stems of the weed plant arrow leaf sida, Sida rhombifolia L. (Malvaceae). Despite egg deposition in the laboratory, nymphs did not develop on this plant. In Argentina (Reconquista, Santa Fé Province), nymphs and adults of C. egeris were observed feeding on immature soybean [Glycine max (L.) Merrill] pods. Under laboratory conditions, nymphs of neither species could be reared beyond the third instar.

The correct name of the neotropical soybean bug (Hemiptera: Alydidae)

Palavras-chave: Heteroptera; Sida rhombifolia; Glycine max; Soybean; Ecdysis; Geographical distribution.

Ano: 2005

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000100018

A species of Neomegalotomus is an occasional pest of soybean [Glycine max (L.) Merrill] in the neotropics, including in Brazil. It was known as Neomegalotomus parvus (Westwood); but the discovery of the type specimen of a species described earlier requires that the name be changed to Neomegalotomus simplex (Westwood), which becomes the correct name for the soybean pest.

Triatominae (Hemiptera: Reduviidae): Systematic questions and some others

Palavras-chave: Type species; Neomegalotomus; Glycine max.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000200024

The Neotropical Chagas' disease vectors are classified as members of the reduviid subfamily Triatominae. However, this classification has been suggested to be incorrect, and the suggestion has been treated as fact by some authors; the suggestion is that some (all?) groups in Triatominae had different nontriatomine reduviid ancestors. In this article I raise this question explicitly and ask other questions ancillary to it. I do not answer these questions. Of particular interest is the systematic position of Linshcosteus, the only genus of Triatominae all of whose species occur outside the New World (in India). Related to this question is that of the origin(s) of the several species and populations probably derived from the tropicopolitan Triatoma...

A Revision of Neomegalotomus (Hemiptera: Alydidae)

Palavras-chave: Insecta; Chagas' disease; Trypanosoma cruzi; Rhodnius; Linshcosteus; Cladistics.

Ano: 2003

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100001

Schaefer,Carl W.; Ahmad,Imtiaz.

We recognize two species in Neomegalotomus, N. parvus (Westwood), the type species; and N. rufipes (Westwood). The two species are redescribed from type specimens, and are keyed. We synonymize the following species with Neomegalotomus parvus: N. simplex (Westwood), N. latifascia (Berg), and N. pallescens (Stål) (all new synonymies). We synonymize N. jamaicensis (Westwood) with N. rufipes (new synonymy). The type specimens of all species hitherto placed in the genus are also redescribed, except those of N. debilis (Walker) and N. vicinus (Westwood). N. parvus occurs from México through Central America into northern Argentina and east into Venezuela and adjacent Caribbean islands. N. rufipes is widespread in the Caribbean south towards Venezuela. The two...

The taxonomic status of Xyonysius major (Berg) (Hemiptera: Lygaeidae), an occasional pest of sunflower in Brazil

Palavras-chave: Heteroptera; Soy pest; Neotropics; Caribbean.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000100005

Specimens of a species of the orsilline genus Xyonysius have been collected on sunflower (Helianthus annuus) in Londrina, Paraná. The specimens appeared to be X. major (Berg), but this species has been synonymized with X. californicus (Stål). Here I show the two species should be considered distinct, at least until the concept "Xyonysius californicus" has been clarified. The sunflower lygaeid is X. major.

Notes on Dysdercus from Brazil (Hemiptera: Pyrrhocoridae)

Palavras-chave: Insecta; Lygaeidae; Orsillinae; Sunflower.

Ano: 1998

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000100007

Variações na coloração são apontadas para as seguintes espécies brasileiras de Dysdercus: D. collaris é citado pela primeira vez na Guiana Francesa; e D. imitator é citado pela primeira vez nos Estados do Rio de Janeiro e Pará, e D. mimus no Estado do Rio Grande do Sul.

A second species of Leptoglossus (Hemiptera: Coreidae: Coreinae) feeding on a magnoliid

Palavras-chave: Insecta; Heteroptera; Coloração; Distribuição geográfica.

Ano: 1998

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000300020

Schaefer,Carl W.; Malaguido,Andréa B.; Silva,Jovenil J..

Encontrou-se o coreídeo Leptoglossus dilaticollis Guérin alimentando-se de magnólia, Michelia champaca em Londrina, PR. Apenas outros quatro coreídeos alimentam-se de membros desse grupo primitivo de plantas, sendo um deles também pertencente ao gênero Leptoglossus.

The correct name of "Megalotomus" pests of soybean (Hemiptera: Alydidae)

Palavras-chave: Insecta; Heteroptera; Planta hospedeira.

Ano: 1997

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000300024

Schaefer,Carl W.; Panizzi,Antônio R..

Registra-se o fato de que espécies de Megalotomus ocorrendo ao sul da América do Norte passam a pertencer ao gênero Neomegalotomus (ver Schaffner & Schaefer, Ann. Entomol. Soc. Am. 91, 1998). Várias destas espécies são pragas da soja [Glycine max (L.) Merr.], e portanto o uso do nome genérico correto é importante.

Filogenia, sistemática e entomologia prática: heteroptera (Hemiptera)

Palavras-chave: Insecta; Heteroptera; Alidídeo; Taxonomia.

Ano: 1998

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000400023

A aplicação do trabalho em sistemática e filogenética pode ter muitos efeitos práticos na entomologia aplicada. A filogenia é o estudo das relações evolucionárias dos organismos; a sistemática usa os resultados da filogenia para contrair sistemas de classificação. Se alguém sabe algo sobre as relações filogenéticas e sistemáticas de uma praga de uma cultura, então ele sabe os parentes da praga ou cultura, e pode predizer o que poderão fazer no futuro. Tal conhecimento e predições são especialmente importantes em países em desenvolvimento, os quais estão diversificando sua agricultura. Insetos que se alimentam de plantas selvagens podem se tornar pragas quando os parentes destas plantas são introduzidas como culturas. Similarmente, nesses países, parentes...