Parasitismo experimental de ovos de várias espécies de Triatoma pelo microhimenóptero Telenomus fariai Lima, 1927

O autor mostra que o Telenomus fariai Lima, microhimenópetero parasito endófago, pode, experimentalmente, desenvolver-se em ovos de Triatoma maculata, T. brasiliensis, T. vitticeps e T. rubrovaria. Faz considerações sôbre a observação dos ovos parasitados, ciclo evolutivo, número de microhimenópteros saídos por ovo e proporção entre os sexos do Telenomus fariai.

Sôbre o Phlebotomus Brasiliensis Costa Lima, 1932 (Diptera, Psychodidae)

In 1939, Mangabeira obtained, under laboratory conditions, the development of eggs of Phlebotomus brasiliensis Costa Lima, 1932, collected at Lassance (typical locality), Minas Gerais, Brasil. He then studied the female and immature stages of this Phlebotomus. The results of these observations plus some more recent data on the male, geographical distribution and bionomics are presented. Morphologically it is closest to Phlebotomus runoides. However, the male Phlebotomus brasiliensis differs from all other Phlebotomus because of its very long spicules, similar to those of Brumptomyia. The female differs by its longer ducts, and by possessing only four horizontal teeth in the buccal cavity, whereas P. runoides has approximately 12 teeth. The pupae of P. brasiliensis is characterized by its two pre-alar setae, which are very simple and small and by the abdominal setae, which are not planted on a protruding tubercle. The fourth stage larvae main characteristics are very thin antennae, inserted on a protruding tuberculum, and slightly brush-like hind frontal setae. P. brasiliensis is here reported, for the first time, for the State of Bahia (Cachoeira, Pojuca and Salvador). The species has almost always been found in armadillo burrows. In the State of Bahia it is more frequent during the dry season. Under laboratory conditions, the female lays about 53 eggs.

Redescription and resurrection from synonymy, of Aedes (Ochlerotatus) Rhyacophilus Costa Lima, 1933

Aedes (Ochlerotatu) rhyacophilus Costa Lima i resurrected from the synonymy with Aedes (Ochlerotatus) scapularis (Rondani). Lectotype and paralectotypes are designated Larval, pupal and both sexes of adult stages are redescribed and illustrated. Bionomics include a picture of a brreding place. Diagnostic characters for distinguishing rhyacophilus from other species of the Scapularis Group are provided. Some data about known distribution are presented.

Description of Lutzomyia bianchigalatiae n. sp. a sand fly within the subgenus Pintomyia Costa Lima 1932 (Diptera; Psychodidae)

A new sand fly species is described based on males collected in Bananal, municipality of Mariana and the female from Sabará city, State of Minas Gerais, Brazil. Taxonomic remarks, geographic distribution and the description of new species are presented. The name Lutzomyia (Pintomyia) bianchigalatiae is in honour of Dr Eunice Aparecida Bianchi Galati, friend and researcher at the Faculdade de Saúde Pública, Universidade de São Paulo.

Reappearance of Aedes aegypti (Diptera: Culicidae) in Lima, Peru

We report here the reappearence of Aedes aegypti in the Rimac district, and summarize the history of this mosquito species in Peru since its first detection in 1852. On March 17 2000 were found Ae. aegypti and Culex quinquefasciatus in Mariscal Castilla town, Flor de Amancaes, San Juan de Amancaes, El Altillo and Santa Rosa in the Rimac district, Lima Province.

Characteristics of the bological cycle of Lutzomyia evandroi Costa Lima & Antunes, 1936 (Diptera: Psychodidae) under experimental conditions

Lutzomyia evandroi Costa Lima and Antunes, 1936 is found in Rio Grande do Norte, northeastern Brazil, in areas of visceral and mucocutaneous leishmaniasis and follows the same geographic distribution of L. longipalpis. The biological cycle, oviposition, morphological and behavioral characteristics of the species were studied under experimental conditions. The average number of eggs per wild caught female varied from 21 to 50 eggs along the year, with a peak occurring between January and March and another in August, with oviposition lasting for 4 to 12 days. The mean larval phase was 24 days. Ovipositing rates were influenced by rainfall and temperature indexes, with an increase of eggs per oviposition at the beginning and at the end of the rainy season, and a decrease at the peak of the rainy season.

Redescription of the Male of Lutzomyia lutziana (Costa Lima) and Description of the Female (Diptera: Psychodidae)

During the course of taxonomic studies of New World phlebotomine sand flies, it was discovered that the female specimen considered to be the female of Lutzomyia lutziana does not belong to this species. A new description of the female of L. lutziana is presented, based on specimens captured in Lassance, State of Minas Gerais, the type locality of the species. The male of L. lutziana is also redescribed, based on an exemplar caught in Curvelo, State of Minas Gerais.

Morfologia comparada dos ovos e ninfas de Triatoma vandae Carcavallo, Jurberg, Rocha, Galvão, Noireau & Lent, 2002 e Triatoma williami Galvão, Souza & Lima, 1965 (Hemiptera, Reduviidae, Triatominae)

Eggs and all nymphs of these species were studied employing light microscopy (LM) and scanning electron microscopy (SEM). The major differences observed by LM in the eggs were related to the presence and the distribution of pores on the surface of their chorion. Morphological differences among three nymphal stages (1st, 3rd, and 5th) development of each species were observed. The differential characteristics are chromatic and in the shape of connexival spots. The ultrastructure of the ventral region of the head and the IX, X, and XI abdominal segments (anal tube) of the both species were described demonstrating morphological differences that can be used for diagnosis of the species.

Novas espécies de Prodecatoma (Hymenoptera, Eurytomidae) associadas a galhas em frutos de duas espécies de Psidium L. (Myrtaceae), com comentários sobre Prodecatoma spermophaga Costa-Lima

Três novas espécies de Prodecatoma obtidas a partir de galhas em frutos de Psidium cattleianum Sabine e Psidium cinereum Mart. ex DC.(Myrtaceae) são descritas a partir de material obtido no Paraná e Rio Grande do Sul, Brasil. Duas das novas espécies, Prodecatoma carpophaga sp. nov. e Prodecatoma petrodoma sp. nov. são descritas como indutoras das galhas. Prodecatoma ferruginea sp. nov. e Prodecatoma spermophaga Costa-Lima são apontadas como inquilinas das galhas ou parasitóides. São incluídos também comentários sobre a morfologia macroscópica da galha e a biologia das vespas.

Efeitos da temperatura no desenvolvimento, fecundidade e longevidade de Gargaphia torresi Lima (Hemiptera, Tingidae)

O desenvolvimento de Gargaphia torresi Lima em folhas de algodão foi estudado em câmara climatizada a 20, 23, 25, 28 e 30ºC, umidade relativa de 70±10% e fotofase de 12h. O período de incubação variou de 11 (20ºC) a 4 (30ºC) dias; o estágio ninfal de indivíduos que originaram fêmeas e machos variou de 20,8 (20ºC) a 8,3 (30ºC) dias e de 28,8 (20ºC) e 8,6 (30ºC) dias, respectivamente. O desenvolvimento dos estágios imaturos para indivíduos que originaram fêmeas e machos variou de 31,8 (20ºC) a 12,3 (30ºC) dias e de 31,5 (20ºC) a 12,6 (30ºC) dias, respectivamente. Os valores de longevidade e fecundidade foram inversamente proporcionais ao aumento da temperatura. As exigências térmicas (K) e temperaturas-base (Tb) foram estimadas para cada um dos estágios imaturos e de ovo à emergência de adultos (machos e fêmeas) de acordo com a Lei de Reamur e com o método de intercecção de X, respectivamente. Os estágios imaturos para indivíduos que originaram fêmeas e machos adultos requereram 209,4 e 220,3 graus-dia da oviposição à emergência do adulto, respectivamente, acima dos limites inferiores de 13,9 e 13,6ºC.