Keti Maria Rocha Zanol

Feeding and oviposition preferences of Ctenarytaina spatulata Taylor (Hemiptera, Psyllidae) for Eucalyptus spp. and other Myrtaceae in Brazil

Feeding and oviposition preferences of Ctenarytaina spatulata Taylor (Hemiptera, Psyllidae) for Eucalyptus spp. and other Myrtaceae in Brazil. The Australian psyllid, Ctenarytaina spatulata Taylor (Hemiptera, Psyllidae), was first detected in Brazil in 1994, where it was found on drought-affected shoots of Eucalyptus grandis in a plantation located in the northern part of Parana State. The oviposition and feeding preferences of this psyllid were examined on 19 Eucalyptus species, one Eucalyptus hybrid (Cambiju), three Corymbia species and four native Myrtaceae species (Hexaclames edulis, Marlieria edulis, Plinia trunciflora, and Psydium sp.) under greenhouse conditions. The largest populations of C. spatulata were found on E. robusta and E. pellita, while sizeable infestations were also found on E. urophylla, E. grandis, and the Cambiju hybrid. The plants with the greatest symptoms of damage were E. grandis and E. resinifera. Eucalyptus cinerea, E. benthamii, E. pilularis, and E. dunnii were not infested and E. cloeziana was minimally infested. Among the Corymbia species, the number of eggs of C. spatulata was very low on C. citriodora and C. torelliana. No eggs and nymphs of C. spatulata were found on native Brazilian Myrtaceae. The number of eggs on plants was highly correlated with the subsequent levels of nymphs, suggesting that egg counts can be used as a viable monitoring tool to assist with the integrated management of this pest.

Morfologia externa das ninfas e adultos de Ctenarytaina spatulata Taylor (Hemiptera, Psyllidae)

Ctenarytaina spatulata Taylor, 1997 was introduced in Brazil in the 1990 in eucalyptus plantations. Due to the importance of the C. spatulata as an eucalyptus pest, this research was developed in order to study the external morphology of adults and nymphs, with special detail on the 5th instar nymphs. Considerable differences were observed among the nymphal instars, mainly in respect to size and characters of the antennae, the legs and the apex of the abdomen. The adult external morphology was presented with details of the wing veins, the characteristics of the legs, antennae and the genitalia.

Espécies de Cicadellinae, Deltocephalinae (Homoptera, Cicadellidae) da Ilha de Maracá, Roraima.

The species of Cicadellidae, Cicadellinae and Deltocephalinae (Homoptera, Cicadel lidae) collected in Ilha de Maraca, Roraima, Bruzil are listed.

Novas combinações em Atanus Oman (Hemiptera, Cicadellidae)

New combinations within Atanus Oman (Hemiptera, Cicadellidae). The following new combinations are made: Atanus nitidus (Linnavuori, 1955) - comb. nov., Atanus cineratus (Linnavuori, 1959) - comb. nov., Atanus furcifer (Linnavuori, 1959) - comb. nov., Atanus lagunae (Linnavuori, 1959) - comb. nov., Atanus serricauda (Linnavuori, 1959) - comb. nov. Atanus joaquinus (Linnavuori, 1973) - comb. nov., Atanus rhopalus (Cheng, 1980) - comb. nov., and Atanus trifurcatus (Cheng, 1980) - comb. nov.

Sobre o material-tipo de Andanus bimaculatus Linnavuori e descrição de um novo gênero e nova espécie (Homoptera, Cicadellidae, Deltocephalinae)

Linnavuori, 1959 described the genus and species Andanus bimaculatus based on four specimens collected in Peru, Madre de Dios. In examining the type-material, we found that it was formed by two species belonging to a different genus. The female specimen (alotype) and one of the two males paratypes, that Linnavuori used to dissect the genitalia, is here described as Perundanus raunoi, gen.n., sp.n. Fora better characterization of the genus Andanus Linnavuori and A. bimaculatus Linnavuori , both are redescribed.

Chlorotettix Van Duzee (Homoptera, Cicadellidae, Deltocephalinae): descrições de duas novas espécies

Two new species are described: Chlorotettix essbejus sp. n. (Peru) and Chlorotettix dentatus sp, n. (Colombia).

Neophlepsius Linnavuori (Homoptera, Cicadellidae, Deltocephalinae): descrição de cinco espécies novas

Five new species of Neophlepsius Linnavuori, 1955 are described: N. peruvianus sp.n., N. abruptus sp.n., N. denticulatus sp.n., N. bifidus sp.n., and N. malkowskiae sp.n., (the first one from Peru and the remainder from Brazil). N. phorus Cheng, 1980 is a new synonym of N. gracilis (Osborn, 1923).

Descrição de cinco espécies novas de Bahita Oman (Homoptera, Cicadellidae, Deltocephalinae)

Five new species of Bahita Oman, 1936, from Brazil, are described: Bahita fenica, B. anlonina, B. aguasina, B. variabilis and B. joseana.

Benibahita Linnavuori (Hemiptera, Cicadellidae): primeiro registro no Brasil e descrição da fêmea de Benibahita furcillata Linnavuori

Benibahita Linnavuori, 1959 is reported for the first time in Brazil; the female of B. furcillata is described and the male is redescribed and illustrated.

Pachytettix (Hemiptera, Cicadellidae): primeiro registro no Brasil e descrição de uma nova espécie

Pachytettix Linnavuori, 1959 is reported for the first time in Brazil and a new species, P. ikrajubus sp. nov., is described and illustrated.