Novos táxons de Cerambycidae (Coleoptera) das Américas Central e do Sul

Novos táxons descritos: em Cerambycinae, Bomarion caudatum sp. nov., da Bolívia (Ectenessini); Nephalius levigatus sp. nov., do Brasil, Paraíba (Elaphidiini); Bothriospila pulcherrima sp. nov., do Brasil, Bahia (Bothriospilini); Cycnidolon rufescens sp. nov., do Brasil, Paraíba (Neoibidionini). Em Lamiinae: Cicatricallia gen. nov., espécie-tipo: C. cicatricosa sp. nov. de Trindade e Tobago (Calliini); Mimasyngenes clarkei sp. nov., de Trinidad e Tobago e Mimasyngenes fonticulus sp. nov., do Brasil, Piauí; Ibypeba gen. nov., espécie-tipo: I. camiri sp. nov., da Bolívia; Micratelodesmis gen. nov., espécie-tipo: M. minor sp. nov. (Desmiphorini); Lycidola affinis sp. nov. de Trinidad e Tobago (Hemilophini). Novos registros: Lycidola beltii Bates, 1872 para a Costa Rica e Alampyris fuscus Martins & Galileo, 2008 para o Panamá (Hemilophini).

Variation of the ichthyofauna along the Goioerê River: an important tributary of the Piquiri-Paraná basin

The construction of reservoirs is considered an important source of impacts on the fish fauna, severely altering the structure of the assemblage. This paper aimed to describe the structure of the fish assemblage of the Goioerê River, determining its longitudinal distribution and patterns of species dominance. The evaluation of its longitudinal variation in the diversity and abundance of the fish assemblage was conducted in July and October 2004 and January and May 2005. The collections were carried out near the headwaters (Gurucaia), middle stretch (Olaria), just above the falls (Paiquerê) and downstream (Foz). Forty-four species were captured. The Gurucaia fish assemblages differed significantly from Olaria, Paiquerê and Foz. The Olaria assemblages differed significantly from the Foz. Gurucaia showed the lowest diversity and abundance of species. Astyanax aff paranae Eigenmann,1914 (78% of the total) was found to be dominant at this site. Almost the same species richness was found at Olaria and Paiquerê, although Olaria had the greatest abundance of individuals. Astyanax aff paranae, Cyphocharax modestus (Fernández-Yépez, 1948) and Astyanax altiparanae Garutti & Britski, 2000 were the top three dominants and comprised over 71% of the total number of fish caught. At Paiquerê, Astyanax altiparanae, Hypostomus aff ancistroides (Ihering, 1911) and Loricariichthys platymetopon Isbrücker & Nijssen, 1979 composed 58% of the catches. Thirty-one species were recorded at Foz, which presented the greatest richness. The most abundant species were Apareiodon affinis (Steindachner, 1879), Galeocharax knerii (Steindachner, 1879) and A.altiparanae, which contributed to 50% of the total catches in this environment.These results record the fish biodiversity and how the community is longitudinally structured in the Goioerê River, and also demonstrate how this type of evaluation is important to understanding the fish community patterns and finding solutions to problems related to the conservation and management of the basin.

7ª Contribuição ao estudo dos Flebotomus (Diptera: Psychodidae): descrição dos machos de 24 novas espécies

The A. and his co-workers captured in trips in the hinterland of Brazil more tham 17.000 flebotomi from which 35 are new ones, 11 discribed by, him in previous papers. The A. found these insects in groups of species living in different habitats, some ones of them not yet known: ondoors, or outdoors attracted by light or animal baits, without Shannon’s trap, in great or small caves, in the jungle in tree’s holes, holes in stones, holes in the soil habited by animals like armadillos, pacas (Aguti paca), wild rats, cururú toad (Bufo sp.). He observed the life history of 13 species: Flebotomus longipalpis Lutz& Neiva, 1912, Flebotomus intermedius Lutz & Neiva, 1912, Flebotomus avellari Costa Lima, 1932, Flebotomus aragãoi costa Lima, 1932, Flebotomus lutzianus Costa Lima, 1932, Flebotomus limai fonseca, 1935, Flebotomus rickardi Costa Lima, 1936, Flebotomus dasipodogeton Castro, 1939, Flebotomus oswaldoi n. sp., Flebotomus villelai n. sp., Flebotomus triacanthus n. sp., Flebotomus longispinus n. sp. And flebotomus travassosi n. sp. He describes the male of 24 n. sp., explaining the differential diagnose of group or nearly allied species. He inclued F. rooti n. sp. And F. hirsutus n. sp. In the sub-genus Shannonomyia. The first one, very allied to F. davisi Root is different from it, for presenting in the dorsal side of the abdomen bristles and not scales and to have the median claspers longer than his inner appendage and F. hirsutus quite different from the others which show 3 spines on distal segment of the upper clasper and for being the only one who presents the bristles of inner appendage of median clasper longer than it. Only the females of F. amazonensis Root and f. chagasi Costa Lima, are known and then it is possible that they belong to one of the species of this sub-genus from whom only the male have been described. F. choti Floch & Abonnenc, captured also at Pará, F. triacanthus n. sp. F. trispinosus n. sp. And F. equatorialis n. sp. Are very related and to this group the A. proposes the same of Pressatia as sub-genus in honor to whom demonstrated the medical importance of the flebotomi, considering F. triacanthus as the type specie of this sub-genus. In this sub-genus the V papal joint is very long, longer than III + IV, the antennae with geniculated spines without posterior outgrowth. At the genitalia the basal segment of the upper clasper presents two types of bristles ou the inner face, arranged in tuft; the distal segment with 3 spines and 2 thin bristles something difficult to see one of them situated near the apical spine and the other on the base of tubercle where the median spine is articulated; the median clasper is unarmed and compressed; the inferior clasper is also unarmed and longer than de basal segment of the upper clasper; the pompeta is longer than the basal segment of the upper clasper. Following it is presented a key for the determination of the males of the four species of this sub-genus. F. micropygus n. sp., F. minasensis n. sp. e F. dandrophylus n. sp., f. shannoni, F. monticolus, F. pestanai, F. lanei and F. cayenensis constitute a group with many similars characters. F. micropygus is the only American species who present α smaller than β and for that reason and others is allied to. F. minuts and others related species, but presents two terminal spines on the distal segment of the upper clasper. F. micropygus and f. minasensis are quite different because they have very small genitalia, smaller than their heads. F. dendrophylus presents on the median clasper a naked area near the apex and for this and others characters is different from the others of the group. F. flaviscutellatus n. sp., F. oliverioi, F. intermedius and whithmani, are very allied but the first one can be very easily distinguished because it’s scutellum is light. Flebotomus barrettoi n. sp., F. coutinhoi n. sp., F. aragãoi, F. brasiliensis, F. lutzianus, F. texanus, F. pascalei, F. atroclavatus and F. tejeraae are very allied forming a natural group. The two last ones are not well known but the A. A. who have studied them described very long clipeus so long as the head and for that reason can be distinguished from all the others included the two new ones. F. coutinhoi is the only one who presents the apecis of the penis filaments twisted. F. barrettoi n. sp., can be distinguished from aragãoi, texamus and coutinhoi by the length of the penis filaments and from atrocavatus, tejeraae, lutzianus and brasiliensis by the arrangement of the spines of distal segment of the upper clasper. Flebotomus ubiquitalis n. sp., F. auraensis n. sp., F. affinis and F. microps e F. antunesi have many common characters. F. microps n. sp., can be distinguished from any one by the size of the eyes and the presence od well developed genae. This species and other new species are different from F. antunesi by the arrangement of the spines of the distal segment of the upper clasper of the latter. F. ubiquitalis n. sp. can be distinguished from others by the figure of the median clasper. F. auraensis n. sp. Can be distinguished from F. affinis n. sp. By the tuft hairs on the inner face of the basal segment and by arrangement of the spines of the sital segment of the upper clasper. Flebotomus brachipygus n. sp. Seemed to be F. rostrans, specie not well known, by the characters of the genitalia but can not be identified to her by the clypeus size and the palpi’s characters. Flebotomus costalimai, n. sp., f. tupynambai n. sp., and f. castroi Barreto & Coutinho, 1941, are very allied species and the A. proposes to included them the new sub-genus Castromyia, in honor to Dr. G. M. de Oliveira Castro, appointing like typespecies F. castroi with the V joint longer than III + IV; antennae with geniculated spines without posterior prolongation. Genitalia: the basal segment of the upper clasper with a tuft of hairs and the distal segment with 4 spines, one of them at the apex and near it a thin and straight bristle difficult to see; the median clasper with one spinous hair isolated...

Notas de ixodologia: III - conformação de Ixodes aragãoi Fonseca, 1935, de Ixodes amarali Fonseca, 1935, e lista das espécies do gênero Ixodes que ocorrem no Brasil (Acari, Ixodidae)

After comparison of the types of Ixodes ricinus aragãoi Fonseca, 1935, with a lot of Ixodes affinis Neumann, 1899, kindly loaned by Dr. Kohls, it was observed that both species differ by the aspect of the dorsal scutm, no large punctations being in the posterior border in the Brazilian material. Therefore is FONSECA'S species maintened as Ixodes aragãoi Fonseca, 1935. Ixodes amarali Fonseca, 1935 was reexamined and confirmed as a valid species. A list of Brazilian species of the genus Ixodes studied by the authors is presented.

On Notochaeta (Diptera, Sarcophagidae) with descriptions of five new species

Nine species of Notochaeta, five of them proposed as new species (napoensis, flavipes, hixtlaensis, affinis and setifrons) were described and figured. Mostly of the species were obtained from the Amazon Region of Peru and Ecuador; one species was collected in Mexioc and the paratype of N. panamensis Dodge was redescribed. The typical material belongs to the collection of the Biosystematics Research Institute, Ottawa and "Museu Nacional", Rio de Janeiro.

New brazilian predaceous midges of the genus Monohelea Kieffer, and redescription of M. guaimiesi (Diptera: Ceratopogonidae)

Two new Brazilian species of Monohelea Kieffer, M. affinis and M. roraimensis are described and illustrated, and a redescription of M. guiaimiesi Lane & Wirth is given.

A review of the ticks (Acari, Ixodida) of Brazil, their hosts and geographic distribution - 1. The State of Rio Grande do Sul, Southern Brazil

A review of the ticks (Acari, Ixodida) of the State of Rio Grande do Sul, southern Brazil, was completed as a step towards a definitive list (currently indicated as 12) of such species, their hosts and distribution. The ticks: Argas miniatus (poultry), Ixodes loricatus (opossums), Amblyomma aureolatum (dogs), A. calcaratum (anteaters), A. cooperi (capybaras), A. nodosum (anteaters), A. tigrinum (dogs) (Neotropical) and Rhipicephalus sanguineus (dogs) (introduced, cosmopolitan, Afrotropical) were confirmed as present, in addition to the predominant, Boophilus microplus (cattle) (introduced, pan-tropical, Oriental). Of the further 18 species thus far reported in the literature as present in the state, but unavailable for examination: only Ornithodoros brasiliensis (humans and their habitations) (Neotropical), Ixodes affinis (deer) (Nearctic/Neotropical) and I. auritulus (birds) (Nearctic/Neotropical/Afrotropical/ Australasian) are considered likely; 13 species would benefit from corroborative local data but the majority appear unlikely; reports of A. maculatum (Nearctic/Neotropical, but circum-Caribbean) are considered erroneous; the validity of A. fuscum is in doubt. The very recent, first known report of the tropical Anocentor nitens (horses)(Nearctic/Neotropical), but still apparent absence of the tropical A. cajennense (catholic) (Nearctic/Neotropical) and the sub-tropical/temperate Ixodes pararicinus (cattle) (Neotropical) in Rio Grande do Sul are important for considerations on their current biogeographical distribution and its dynamics in South America. The state has relatively long established, introduced ("exotic"), Old World tick species (B. microplus, R. sanguineus) that continue to represent significant pests and disease vectors to their traditional, introduced domestic animal hosts, cattle and urban dogs. There are also indigenous, New World ticks (A. miniatus, O. brasiliensis, A. aureolatum, A. nitens), as both long established and possibly newly locally introduced species in the state, that should be considered as potential and emergent pests and pathogen vectors to humans and their more recently acquired, introduced domestic animal hosts; rural poultry, dogs and horses.

Revisão taxonômica, análise cladística e descrição de espécies novas de Aglaenita Spinola (Hemiptera, Cicadellidae, Neocoelidiinae)

Aglaenita e as quatro espécies conhecidas do gênero são redescritas. Nove espécies novas são descritas. Foi realizada uma análise cladística baseada em 22 caracteres morfológicos e 15 táxons terminais, utilizando duas espécies de Biza como grupo externo. A análise mostrou que Aglaenita é um gênero monofilético e o relacionamento entre as espécies foi: (A. spatulata sp. nov. ((A. dubia, A. elegans) ((A. bicornis sp. nov., A. spinipenis sp. nov.) (A. bifurcata sp. nov. (A. affinis sp. nov. ((A. bipunctata (A. similis, A. tridentata sp. nov.)) (A. longicornis sp. nov. (A. coariensis sp. nov., A. unciformis sp. nov.)))))))). As treze espécies são ilustradas, uma chave para identificação das mesmas e sua distribuição geográfica conhecida são fornecidas. A fêmea de A. elegans é descrita pela primeira vez.

Espécies novas de Anthrenoides Ducke (Hymenoptera, Andreninae) do Sudeste do Brasil

Dez espécies novas de Anthrenoides são descritas: A. affinis sp. nov., A. alvarengai sp. nov., A. bocainensis sp. nov., A. digitatus sp. nov., A. falsificus sp. nov., A. flavomaculatus sp. nov., A. glossatus sp. nov., A. jordanensis sp. nov., A. labratus sp. nov. e A. lavrensis sp. nov. São relacionadas novas ocorrências e é proposta uma chave para a identificação das espécies conhecidas dessa região.

Revisão de Trichonius Bates (Coleoptera, Cerambycidae, Lamiinae)

O gênero Trichonius Bates, 1864 e suas espécies são redescritos. Oito espécies são reconhecidas, das quais cinco novas são descritas: Trichonius minimus sp. nov., T. bellus sp. nov. e T. griseus sp. nov. da Guiana Francesa e Brasil; T. affinis sp. nov. (Mato Grosso), e T. atlanticus sp. nov. (Bahia, Minas Gerais) do Brasil. São fornecidas chave para identificação das espécies e ilustrações.

Contribuição ao conhecimento de espécies venezuelanas de Lespesia Robineau-Desvoidy (Diptera, Tachinidae, Exoristinae), com descrições de novas espécies

Contribuição ao conhecimento de espécies venezuelanas do gênero Lespesia Robineau-Desvoidy (Diptera, Tachinidae), com descrições de novas espécies. Foi realizado um estudo taxonômico de espécies venezuelanas do gênero Lespesia Robineau-Desvoidy, 1863 (Diptera, Tachinidae), baseado na coleção do "Museo del Instituto de Zoología Agrícola Francisco Fernández Yépez (MIZA) de la Universidad Central de Venezuela - Maracay". Seis espécies foram reconhecidas, dentre estas duas são descritas como novas, Lespesia giovannae sp. nov. e Lespesia oscari sp. nov., e três são registradas pela primeira vez para a Venezuela: Lespesia affinis (Townsend, 1927), Lespesia protoginoi (Blanchard, 1966) e Lespesia spitzi Guimarães, 1983. São apresentadas redescrições e chaves para as espécies.

Earthworms from Mato Grosso, Brazil, and new records of species from the state

The objective of this work was to undertake a qualitative assessment of earthworm diversity in areas under human influence, in a region of Cerrado-Pantanal-Amazon rainforest transition, in the state of Mato Grosso, Brazil. The earthworms were collected in the municipalities of Barra do Bugres and Arenápolis, and were studied together with species previously identified from other municipalities. Seventeen municipalities, at 29 sampling points of Mato Grosso State, have been sampled. Seven species of earthworms were collected and identified in Barra do Bugres: Goiascolex vanzolinii, Pontoscolex (Pontoscolex) corethrurus, Opisthodrillus borellii borellii, Opisthodrillus sp., Dichogaster (Diplothecodrilus) gracilis, Dichogaster sp. and a species of the Criodrilidae family. Four species of earthworms were identified in Arenápolis: Pontoscolex (Pontoscolex) corethrurus, Dichogaster (Diplothecodrilus) gracilis, Dichogaster (Diplothecodrilus) affinis and Dichogaster sp. In total, 32 earthworm species/subspecies are known from Mato Grosso, 22 native and 10 exotic.

Lychnophoric acid from Lychnophora pinaster: a complete and unequivocal assignment by NMR spectroscopy

The investigation of the hexane extract from aerial parts of Lychnophora pinaster provided, besides others substances, the E-isomer of lychnophoric acid, a sesquiterpene derivative previously isolated from L. affinis.

Avaliação de danos por insetos em toras estocadas em indústrias madeireiras de Manaus, Amazonas, Brasil

Em seis indústrias madeireiras de Manaus, Amazonas, foi realizado um trabalho de pesquisa, com a utilização de um questionário,para averiguar as condições de uso e processamento da madeira e as medidas preventivas contra o ataque de insetos. Foram realizados, também,um levantamento da ocorrência de insetos em 19 espécies de madeiras utilizadas por essas indústrias e a avaliação do dano provocado pelas principais espécies de Coleoptera (besouros) e Isoptera (cupins). Das respostas apuradas, constatou-se que nenhuma das empresas visitadas emprega qualquer produto para prevenir o ataque de insetos às toras, assim como a secagem e a estocagem das toras são feitas de forma incorreta, contribuindo para aumentar a intensidade de ataque de insetos. Foram encontradas uma família de cupins e 16 de besouros, ressaltando que destas apenas cinco causam danos à madeira. Do total de 13 espécies de insetos coletados, destacam-se Xyleborus affinis Eichhoff e Platypus parallelus (Fabricius), encontradas em 18 espécies madeireiras, sendo conseqüentemente responsáveis pela maioria dos danos nas toras X. volvulus (Fabricius) e Platypus sp. foram encontradas em cinco espécies; X. ferrugineus (Fabricius) em três espécies; Minthea rugicolis Walk, Minthea sp. e Nasutitermes corniger (Motschulsky) em duas, e Dinoderus bifoveolatus Wollaston, Anoplotermes sp.; e Cnesinus sp. em uma. As espécies de madeiras que sofreram maior grau de deterioração, causada principalmente por coleópteros, foram Ceiba pentandra (L.) Gaertn. e Copaifera multijuga Hayne, seguidas por Couroupitaguianensis Aubl., Calophyllum brasiliense Cambess., Cedrela odorata L., Hevea brasiliensis Müll. Arg., Hura crepitans L., Hymenolobium sp., Maquira coriacea (Karsten) C.C. Berg, Nectandra sp., Virolasurinamensis Warb. e Vochysia sp.

Seletividade de herbicidas a cinco tipos de gramas

Dentre as opções de controle de plantas daninhas em gramados, destaca-se o uso de herbicidas, porém poucas informações existem na literatura sobre a sua seletividade a gramados. Assim, foi desenvolvida a presente pesquisa em casa de vegetação da ESALQ - Piracicaba, com o objetivo de testar a seletividade de herbicidas aplicados em pré-plantio (sulfentrazone a 1,4 kg i.a. ha-1 e oxadiazon a 1,0 kg i.a. ha-1) e em pós-emergência (halosulfuron a 112,5 g i.a. ha-1, 2,4-D a 2,010 kg i.a. ha-1 e MSMA a 2,4 kg i.a. ha-1), em cinco espécies de gramas (família Poaceae): são-carlos (Axonopus affinis), esmeralda (Zoysia japonica), bermuda (Cynodon dactylon), zoysia (Zoysia matrella) e santo-agostinho (Stenotaphrum secundatum). As conclusões gerais deste trabalho de pesquisa foram de que a seletividade de herbicidas aos diversos tipos de grama é função principalmente da espécie de grama e do tipo e da dose do herbicida aplicado. Dentre os herbicidas testados, destacam-se como mais seletivos o halosulfuron na dose de 112,5 g i.a. ha-1 e o 2,4-D na de 2,010 kg i.a. ha-1; as espécies de grama do gênero Zoysia (esmeralda [Z. japonica] e zoysia [Z. matrella]), de maneira geral, são mais tolerantes aos herbicidas testados nesta pesquisa.