Notas sobre os gêneros Paloue Aublet e Paloveopsis Cowan (Leguminosae: Caesalpinioideae) no Brasil

RESUMOOs gêneros Paloue e Paloueopsis são representados na Amazônia brasileira respectivamente por Paloue brasiliensis Duche, Paloue guianensisAubl. Paloue induta Sandw. subsp. glabra W. Rodr. & Lima (nova subespécie), Paloue riparia Pulle e Paloueopsis emarginataCowan. Eles são aqui sinopticamente apresentados com uma chave para a identificação das respectivas espécies e complementados com comentários sobre o habitat e a distribuição geográfica de cada táxon.

Notas sobre a bionomia de Tetragonisca weyrauchi schwarz, 1943 (Apidae, MeliponinI)

No Brasil, a abelha sem ferrão, Tetragonisca weyrauchi tem sua distribuição restrita à região Amazônica. Constrói ninhos aéreos freqüentemente em forquilhas inclinadas de árvores. Os ninhos, cilindróides e verticais, medem cerca de 60cm de circunferência na parte mais larga e 35cm de altura. A cobertura é de uma película fina e maleável com diferentes consistências. A maioria dos ninhos apresenta, na parte superior, um prolongamento com várias protuberâncias e aberturas, ou só aberturas, com diâmetros milimétricos variáveis ao longo do dia, denominado aqui de respiráculo. A morfologia do ninho, com a porta na parte inferior e o respiráculo na parte superior, parece estar bem adaptado ao ambiente tropical em que se encontra. As médias das temperaturas internas de um ninho habitado e outro vazio acompanharam as flutuações ambientais com alto valor de correlação (r=0,98). Os resultados sugerem que a estrutura física do ninho seria responsável por uma pequena parcela na retenção da energia calorífera. Se existe termorregulação, ela deve ser mais evidente acima dos 33ºC ambientais, temperatura onde ocorreu tendência de estabilidade. A grande quantidade de lamelas de cerume ao redor dos favos de cria horizontais, o tamanho dos potes ovóides de alimento ao redor de 1-2 cm de altura, a porcentagem de água no mel ao redor de 27.6%, o aspecto do tubo de entrada com pequenos orifícios, os valores de temperatura em que ocorre a abertura desse tubo pela manhã, entre 21-23ºC, e as coletas de néctar, predominantemente em Myrtacea, fazem com que seja atribuída grande semelhança física e comportamental entre T.weyrauchi e T. angustula. Os ninhos se adaptam bem em colônias tipo Paulo Nogueira-Neto. São abelhas agressivas quando manuseadas. Estima-se que seus ninhos tenham uma população de 2000-3000 indivíduos.

Notas sobre Ugni Turcz. (Myrtaceae) na Amazônia Brasileira

O objetivo deste trabalho é registrar a ocorrência de Ugni Turcz., um gênero raro e mal conhecido na Amazônia Brasileira. Ugni é composto por quatro espécies, sendo que apenas Ugni myricoides (Kunth) O. Berg ocorre no Brasil, habitando principalmente regiões de altitude nos Estados de Roraima e Amazonas (Serra da Neblina), sendo conhecido nos Herbários regionais somente de uma coleta. Ugni têm sido considerado por muitos botânicos como sinônimo de Myrtus Linnaeus, devido ambos apresentarem caracteres morfológicos muito semelhantes entre si. Porém, Ugni é caracterizado por apresentar hábito arbóreo ou arbustivo, folhas pequenas, freqüentemente com 2 cm de comprimento ou menos, coriáceas, margens revolutas, venação secundária inconspícua, inflorescências unifloras, corola (4) 5-mera, pétalas brancas, com mancha avermelhada no centro, estames 25-30, anteras sagitadas, ovário (2-) 3-locular, 4-23 óvulos por lóculo, sementes 15-20 e embrião em forma de C.

Notas e descrições em Oemini, Dodecosini e Elaphidionini (Coleoptera: Cerambycidae: Cerambycinae)

Novas espécies são descritas em três tribos de Cerambycinae: em Oemini, Kalore minima sp. nov., do Brasil (Amazonas); em Dodecosini, Olexandrella rafaeli sp. nov., do Brasil (Rondônia); em Elaphidionini, Curtomerus lingafelteri sp. nov. da Bolívia, Mephritus apicepullus sp. nov., M. vescus sp. nov. e M. estoni sp. nov. as três do Brasil (Amazonas). Notas e novos registros são fornecidos para Macroeme vittipennis (Melzer, 1934), Dodecosis nigricornis Martins & Galileo, 1991 e Adiposphaerion rubrum Martins & Napp, 1992.

Notas sobre a versão em língua portuguesa da Escala de Bem-Estar Espiritual

OBJETIVO: Testar a Escala de Bem-Estar Espiritual (EBE), a versão em português da Spiritual Well-Being Scale (SWB), em uma amostra de universitários matriculados em cursos de pós-graduação da área da saúde, avaliando suas qualidades psicométricas. Entre os diferentes instrumentos que objetivam mensurar a espiritualidade, encontra-se a SWB, adaptada recentemente para a língua portuguesa. Os 20 itens desse instrumento originalmente dividem-se em duas dimensões: bem-estar religioso (BER) e bem-estar existencial (BEE). MÉTODOS: A consistência interna dessas dimensões foi avaliada pelo coeficiente alfa de Cronbach. Foi utilizada análise fatorial com rotação oblíqua para avaliar a estrutura fatorial latente. Quatrocentos e quarenta e um indivíduos responderam ao instrumento. RESULTADOS: O instrumento apresenta satisfatória consistência interna, mas a análise fatorial sugere que os itens da dimensão BEE distribuem-se em dois fatores distintos, o que chama a atenção para a complexidade da estrutura fatorial do instrumento. CONCLUSÃO: A estrutura fatorial da escala EBE não é clara, e a presença de um efeito teto em grupos religiosos específicos pode prejudicar os estudos que buscam associações entre espiritualidade e aspectos relacionados à saúde. O uso do instrumento exige cautela, e posteriores estudos de revisão da escala são necessários.

Notas sôbre a meiose de pachylis (Hemipt-Coreidae)

Spermatogonial chromosomes of Pachylis laticornis and Pachylis pharaonis begin anaphasic movement with both ends turned toward the same pole, maintaining this form util they reach the poles. This is a proof that they are provided with one kinetochore at each end. Additional proof for a longitudinal division of each longitudinal half of the anaphase chromosomes of the primary sper- matocytes is presented against the idea of a previous end-toend pairing at metaphase. The longitudinal split of the chromosomes of the secondary spermatocytes which used to be considered as tertiary split is therefore a true secondary split. The heterochromosome in both species passes undivided to one pole in the first division of the spermatocyte. In Pachylis laticornis it appears connected with the poles by means of two fibrils detached from each extremity, what may be considered as indicating a rather premature longitudinal spliting. The behavior of the heterochromosome of Pachylis pharaonis is highly interesting and affords one of the most beautiful evidences in favour of the dicentricity of the chromosomes. Really, in metaphase the heterochromosome appears at the equator of the cell with a more or less round shape. In the beginning of anaphase it becomes fusiform. As anaphase proceeds it distends itself between the autosomal plates forming a long fusiform bridge or sends toward the plates a thick chromosomal thread. The bulky part of the heterochromosome as it passes to one side it reincorporates the substance of the thread in this side. The thread in the other side, which becomes generally thiner, is left with its kinetochore in the cell at this side. The heterochromosome therefore becomes terminally monocentric in the first division of the spermatocyte. Some figures, however, suggest that the heterochromossome from time to time may pass with both kinetochores to one of the cells, as ordinarily happens in the case of Pachylis laticornis. Summing up, other things apart the behavior of the heterochromosome in both species studied here puts out of doubt the question of the existence of two terminally located kinetochores.

Notas sobre os cromossomios dos proscopiidios

Cephalocoema borellii (Giglio-Tos) has 19 chromosomes, that is 9 pairs of autosomes and a single heterochromosome, the latter having been observed either in succession or in synchronism as was the case of the two other species studied by Prof. PIZA, namely Cephalocoema zilkari Piza and Tetanorhynchus mendesi Piza. (= Cephalocoema sica Serv.).

Notas sobre cromossômios de alguns escorpiões brasileiros

Three species of Scorpions beloging to two different families were studied cytologically: a) Tityus mattogrossensis Borelli (Fam. Buthidae), - This species presents spermatogonia provided with 20 short chromosomes which orient at metaphase with their axis parallelly to the plane of the equator and move toward the poles without changing this position, from the stage pachytene to metaphase the bivalents become, as in Tityus bahiensis, progressivery shorter and thicker, without showing that chiasmata occured at any time. The paired chromosomes never open themselves, out to form loops as in orthodox meioses. As in Tityus bahiensis the bivalents are inserted In the spindle before reaching their maxim contraction. No diakinesis has been observed. The primary spermatocyte metaphases are provided, with 10 pairs of chromosones, two of which are larger and two smaller than the rest. The bivalents orient as in Tityus bahiensis with their length in the plane of the equator and separate parallelly. Spindle fibres are seen alongst their entire body. While, in Tityus bahiensis the ends of the chromosomes are pronouncedly turned to opposite poles at metaphase, nothing like this was observed in the present species. Only late in anaphase the chromosomes of Tityus mattogrossensis show a bending to the poles. The secondary spermatocytes present 10 short chromosomes, two being larger than, the others. Here, on the contrary, the chromosomes are strongly curved toward the poles since the beginning of anaphase. Some chromosomal anomalies have been noticed. Primary spermatocytes with 14 bivalents, some of which representing probably free fragments, were observed. Primary spermatocytes with 8 bivalents and one cross of 4 chromosomes were interpreted as resulting from breakages followed by translocations Primary spermatocytes with 9 bivalents, one of which being much longer than the longst of the normal plates, show that fusion by the extremities of two non homologous chromosomes on the onde side, and of their respective homologous in the same way on tre other, have occured. Orientation of bivalents with their body parallelly to the spindle axis and anaphasic bridges have been encountered. All in all points to the conclusion that the chromosomes of Tityus mattogrossesis, like those of Tityus bahiensia are provided with one kinetochore at each end. Ananteris balzani Thorell - (Fam. Buthidae). - This species which belongs to the same family as Tityus, is provided with 12 chromosomes (diploid). These studied in embryonic tissues, showed the same behavior as the somatic chromosomes of Tityus bahiensis. Bothrirus sp. (Bothriuridae). - Only spermatogonia were found in the testis, of the single male hitherto investigated. The chromosomes, in number of 36, are of different sizes but small and provided, as ordinarily, with a single kinetochore. They behave therefore in an orthodox manner in mitosis.

Notas sôbre a evolução da Sassurana - Megalopyge lanata (Stoll, 1780). (Lep., Heterocera, Megalopygidae)

This paper is a small contribution to the knowledge of Megalopyge lanata (Stoll, 1780). The caterpillars of this moth are called " Sassurana" and are very known by the fact of having the body densely covered with long hairs, among which are some setae connected with poison glands. They damage the leaves of a large number of plants, enclosed in at least 14 botanical families, being therefore poly-phagous. M. lanata has a great taxonomical importance for it being the type of the family Megalopygidae Berg, 1882. The Author presents some notes on the various common names used for it, on its known natural enemies and also about the biology, according to the observations made by him in the Laboratory of Zoology, of the Escola Superior de Agricultura "Luiz de Queiroz, São Paulo University, Brasil.

Notas sôbre Pholus vitis (L., 1758) (Lep., Sphingidae)

The Brazilian entomological literature mentions some species of Sphingidae living on Vitis vinijera leaves, one of which is Pholus vitis (Linnaeus, 1758), of the subfamily Macroglos-sinae. The last instar caterpillar as well as the pupa are described in this note, some biological informations being also given.

Biologia da Arsenura xanthopus (Walker, 1855) ( Lepidoptera - Adelocephalidae ), praga do «Açoita-Cavalo» (Luehea spp.) e notas sôbre seus inimigos naturais

Biology of Arsenura xanthopus (Walker, 1855) (Lep., Adelocephalidae), a pest of Luehea spp. (Tiliaceae), and notes on its natural enemies. In the beginning of 1950, one of the Authors made some observations about the biology of Arsenura xanthopus (Walker), in Piracicaba, State of S. Paulo, Brazil. From 1951 to 1953, both Authors continued the observations on such an important Adelocephalidae, the caterpillars of which represent a serious pest of Luehea spp. leaves. Actually, in some occasions, the caterpillars can destroy completely the leaves of the trees. The species is efficientely controlled by two natural enemies: an egg parasite (Tetrastichus sp., Hym., Eulophidae) and a fly attacking the last instar caterpillar (Winthemia tricolor (van der Wulp), Dip., Tachinidae). Tetrastichus sp. can destroy 100% of the eggs and the fly, 70 to 100% of the caterpillars. Indeed, facts as such are very interesting because we rarely know of a case of so complete a control of a pest by an insect. A. xanthopus had not yet been mentioned in our literature. Actually neither the systematic bibliography nor the economic one has treated of this species. However, a few other species of Arsenura are already known as living on Luehea spp. According to the Authors' observations, W. tricolor was also unknown by the Brazilian entomological literature. Arsenura xanthopus (Walker, 1855) After giving the sinonimy and a few historical data concerning the species, and its geographical distribution, the Authors discuss its placing in the genus Arsenura Duncan or Rhescyntis Huebner, finishing by considering Arsenura xanthopus as a valid name. The Authors put the species in the family Adelocephalidae, as it has been made by several entomologists. The host plant The species of Tiliaceae plants belonging to the genus Luehea are called "açoita-cavalo" and are well known for the usefulness of their largely utilized wood. The genus comprises exclusively American plants, including about 25 species distributed throughout the Latin America. Luehea divaricata Mart, is the best known species and the most commonly cultivated. Biology of Arsenura xanthopus Our observations show that the species passes by 6 larval stages. Eggs and egg-postures, all the 6 instars of the caterpillars as well as the chrysalid are described. The pupal period is the longest of the cycle, taking from 146 to 256 days. Data on the eclosion and habits of the caterpillars are also presented. A redescription of the adult is also given. Our specimens agreed with BOUVIER's description, except in the dimension between the extremities of the extended wings, which is a little shorter (107 mm according to BOUVlErVs paper against from 80 to 100mm in our individuals). Winthemia tricolor (van der Wulp, 1890) Historical data, geographical distribution and host are first related. W. tricolor had as yet a single known host-; Ar^-senura armida (Cramer). This chapter also contains some observations on the biolcn gy of the fly and on its behaviour when trying to lay eggs on the caterpillars' skin. The female of W. tricolor lays from 1 to 33 eggs on the skin of the last instar caterpillar. The mam region of the body where the eggs are laid are the membranous legs. Eggs are also very numerous oh the ventral surface of the thorax and abdomen. The. preference for such regions is easily cleared up considering the position assumed by the caterpillar when fixed motionless in a branch. In such an occasion, the fly approaches, the victim, puts the ovipositor out and lays the eggs on different parts of the body, mainly on the mentioned regions, which are much more easily reached. The eggs of the fly are firmly attached to the host's skin, being almost impossible to detach them, without having them broken. The minute larvae of the fly enter the body of, the host when it transforms into chrysalid. Chrysalids recentely formed and collected in nature f requentely show a few small larvae walking on its skin and looking for an adequate place to get into the body. A few larvae die by remaining in the skin of the caterpillar which is pushed away to some distance by the active movements of the chrysalid recentely formed. From 1 to 10 larvae completely grown may emerge from the attacked chrysalid about 8 days after their penetrating into the caterpillars' body and soon begin to look for an adequate substratum where they can transform themselves into pupae. In natural conditions, the metamorphosis occurs in the soil. The flies appear within 15 days. Tetrastichus sp. This microhymenoptera is economically the most interesting parasite, being commonly able to destroy the whole pos^ ture of the moth. Indeed, some days after the beginning of the infestation of the trees, it is almost impossible to obtain postures completely free of parasites. The active wasp introduces the ovipositor into the egg of the moth, laying its egg inside, from 80 to 120 seconds after having introduced it. A single adult wasp emerges from each egg. Sarcophaga lambens Wiedemann, 1830 During the observations carried out, the Authors obtained 10 flies from a chysalid that were recognized as belonging to the species above. S. lambens is a widely distributed Sarcophagidae, having a long list of hosts. It is commonly obtained from weak or died invertebrates, having no importance as one of their natural enemies. Sinonimy, list of hosts and distribution are presented in this paper. Control of Arsenura xanthopus A test has been carefully made in the laboratory just to find out the best insecticide for controlling A. xanthopus caterpillars. Four different products were experimented (DDT, Pa-rathion, BHC and Fenatox), the best results having been obtained with DDT at 0,25%. However, the Authors believe in spite of the initial damages of the trees, that the application of an insecticide may be harmful by destroying the natural agents of control. A biological desiquilibrium may in this way take place. The introduction of the parasites studied (Tetrastichus sp. and Winthemia tricolor) seems to be the most desirable measure to fight A. xanthopus.

Notas bionômicas e morfológicas dos pulgões que atacam as plantas cítricas

This paper deals with Toxoptera suraniii, (Boyer de Fonsc, 1841) and Aphis citricidus (Kirkaidy, 1907) (Homoptera, Aphididae ), which live on Citrus and several other plants. The second is the transmitter of the disease called "tristeza" of Citrus.

Novos táxons e notas sobre Cerambycidae (Coleoptera) neotropicais

New taxa described, Cerambycinae: Ibidionini, Cecaibidion gen. nov., type species, C. bivittatus sp. nov. from Panama; Acangassuini trib. nov., Acangassu gen. nov., type species, A. diminuta sp. nov. from Brazil (Rio de Janeiro); Necydalopsini: Eucharassusflavotibiale sp. nov. from Colombia (Valle) and E. confusus sp. nov. from Venezuela (Distrito Federal). Lamiinae: Onciderini, Iaquira gen. nov., type species, I.viridis sp. nov. from Brazil (Espírito Santo); Phacellini, Phacellusplurimaculatus sp. nov. from Brazil (Amazonas). Notes on Phacellusfulguratus Monné, 1979 and a key to the species of Eucharassus are added.

Notas sobre Pseudevoplitus (Heteroptera, Pentatomidae) e descrição de duas espécies novas

Two new species of the Neotropical genus Pseudevoplitus Ruckes,1958 are described, P. amazonicus Grazia & Greve, sp. nov. and P. roraimensis Grazia & Greve, sp. nov. both from the Brazilian Amazonia, with emphasis on genital characters. Additions to the generic description and a new key to the species are presented.