Taxonomy of the Simulium perflavum species-group (Diptera: Simuliidae) : with description of a new species from Brazil

The larva, pupa, male, and female of Simulium trombetense n. sp. are described and illustrated. This species was collected in the Brazilian Amazon region in the states of Amapa, Amazonas, Para, and Roraima near the edges ofthe crystalline basement-rock formation ofthe Pre-Cambrian Guiana Shield. Keys for larvae, pupae, males, and females of species in the Simulium perflauum Species-Group are presented, as well as new observations on adult, pupal, and larval characters. Evidence is given to support the species status of S. maroniense Floch and Abonnenc, previously considered synonymous with S. rorotaense Floch and Abonnenc

Simulium (Psaroniocompsa) tergospinosum New Species (Diptera: Simuliidae) in siolii Group from the Southern Part of the State of Amazonas, Brazil

The larva, pupa, male and female of Simulium tergospinosum n. sp. are described and illustrated. The adults of this new species share many characters with species in the subgenus Psaroniocompsa, where it is placed. The larva of this species bears dorsal and lateral triangular tubercles on the abdomen and multiply branched scale-like setae on the body, suggesting that it belongs to the S. siolii species group. S. tergospinosum n.sp. was collected along the Juma River, Apui county, in the southern part of the State of Amazonas, Brazil. The Juma, a black-water river, is a tributary of the Aripuanã River in the Madeira River hydrographic basin, on the southern part of Amazonas. Females were collected biting humans along the water courses during the sampling period (in the dry season)

Belostomatidae (Heteroptera: Nepomorpha) held in the Invertebrate Collection of the Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil: inventory and new distributional records

Belostomatidae is a family of giant water bugs with 52 valid species in Brazil. Here, we list 33 valid species housed in the Invertebrates Collection of the Instituto Nacional de Pesquisas da Amazônia – INPA, Manaus, Brazil. Of the total species examined, 26 had their distributional ranges increased (new records provided in parentheses): Belostoma amazonum Estévez & Polhemus (Mato Grosso and Roraima); B. aurivillianum (Montandon) (Rondônia); B. bosqi De Carlo (Maranhão); B. candidulum Montandon (Mato Grosso do Sul); B. carajaensis Ribeiro & Estévez (Amazonas); B. dallasi De Carlo (Bahia and Pará); B. dentatum (Mayr) (Roraima); B. denticolle Montandon (Roraima); B. dilatatum (Dufour) (Maranhão); B. discretum Montandon (Rio Grande do Sul); B. elongatum Montandon (Paraná); B. estevezae Ribeiro & Alecrim (Amazonas); B. fittkaui De Carlo (Roraima); B. gestroi Montandon (Pará); B. guianae Lauck (Brazil, in Roraima); B. micantulum (Stål) (Maranhão, Rio Grande do Norte, Rondônia and Roraima); B. minusculum (Uhler) (Brazil, in Amazonas, Pará and Rio Grande do Norte); B. parvum Estévez & Polhemus (Amazonas and Roraima); B. plebejum (Stål) (Roraima); B. pygmeum (Dufour) (Pará); B. ribeiroi De Carlo (Mato Grosso do Sul); B. stollii (Amyot & Serville) (Roraima); Horvathinia pelocoroides Montandon (Rondônia); Lethocerus annulipes (Herrich-Schaeffer) (Maranhão, Paraíba and Paraná); L. delpontei De Carlo (Amazonas and Pará) and L. maximus De Carlo (Acre, Amapá, Amazonas and Roraima). In addition, we provide a list of type and non-type specimens of Belostomatidae from INPA’s collection identified to the species level, photographs of these species and relevant taxonomic notes, when available

Belostomatidae (Heteroptera: Nepomorpha) held in the Invertebrate Collection of the Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil: inventory and new distributional records

Belostomatidae is a family of giant water bugs with 52 valid species in Brazil. Here, we list 33 valid species housed in the Invertebrates Collection of the Instituto Nacional de Pesquisas da Amazônia – INPA, Manaus, Brazil. Of the total species examined, 26 had their distributional ranges increased (new records provided in parentheses): Belostoma amazonum Estévez & Polhemus (Mato Grosso and Roraima); B. aurivillianum (Montandon) (Rondônia); B. bosqi De Carlo (Maranhão); B. candidulum Montandon (Mato Grosso do Sul); B. carajaensis Ribeiro & Estévez (Amazonas); B. dallasi De Carlo (Bahia and Pará); B. dentatum (Mayr) (Roraima); B. denticolle Montandon (Roraima); B. dilatatum (Dufour) (Maranhão); B. discretum Montandon (Rio Grande do Sul); B. elongatum Montandon (Paraná); B. estevezae Ribeiro & Alecrim (Amazonas); B. fittkaui De Carlo (Roraima); B. gestroi Montandon (Pará); B. guianae Lauck (Brazil, in Roraima); B. micantulum (Stål) (Maranhão, Rio Grande do Norte, Rondônia and Roraima); B. minusculum (Uhler) (Brazil, in Amazonas, Pará and Rio Grande do Norte); B. parvum Estévez & Polhemus (Amazonas and Roraima); B. plebejum (Stål) (Roraima); B. pygmeum (Dufour) (Pará); B. ribeiroi De Carlo (Mato Grosso do Sul); B. stollii (Amyot & Serville) (Roraima); Horvathinia pelocoroides Montandon (Rondônia); Lethocerus annulipes (Herrich-Schaeffer) (Maranhão, Paraíba and Paraná); L. delpontei De Carlo (Amazonas and Pará) and L. maximus De Carlo (Acre, Amapá, Amazonas and Roraima). In addition, we provide a list of type and non-type specimens of Belostomatidae from INPA’s collection identified to the species level, photographs of these species and relevant taxonomic notes, when available

Spectral properties of fractional differentiation operators

We consider fractional differentiation operators in various senses and show that the strictly accretive property is the common property of fractional differentiation operators. Also we prove that the sectorial property holds for differential operators second order with a fractional derivative in the final term, we explore a location of the spectrum and resolvent sets and show that the spectrum is discrete. We prove that there exists a two-sided estimate for eigenvalues of the real component of operators second order with the fractional derivative in the final term.Comment: The research results were discussed and presented at the 8th International Conference on Differential and Functional Differential Equations. Moscow, Russia, August 13-20, 201

Filamentous Fungi Isolated in Simuliidae (Diptera: Nematocera) larvae in Brazilian Amazônia: Fungos Filamentosos Isolados do trato digestivo de Larvas de Simuliidae (Diptera: Nematocera) da Amazônia brasileira

The objective of this study was to isolate and identify fungal species found on Simuliidae larvae in several municipalities of Brazilian Amazonia, especially in the states of Amazonas and Rondônia. The larvae were collected using forceps, pipettes, placed in sterile containers and stored under refrigeration before being dissected in the laboratory. Approximately 30 Simuliidae species were macerated in Saline Solution (0.9%), seeded on Petri dishes containing solid culture media. The total of 87 fungal lineages were identified from homogenates of seven black-fly species: Simulium perflavum Roubaud, S. trombetense Hamada, Py-Daniel & Adler, S. maroniense Floch & Abonnenc, S. cauchense Floch & Abonnenc, S. daltanhani Hamada & Adler, S. rorotaense Floch & Abonnenc and Lutzimulium simplicicolor (Lutz). Fifteen fungal species were identified as: Cladosporium chlorocephalum (Fresen.) (1.1%), C. herbarum (Pers.) Link (1.1%), Penicilium crustosum Thom (2.2%), P. chrysogenum Thom (3.4%), P. lividum Westling (3.4%), P. citrinum Thom (5.7%), P. citreonigrum Dierckx (1.1%), P. corylophilum Dierckx (1.1%), P. fellutanum Biourge (11.4%), P. oxalicum Currie and Thom (2.2%), Gliocladium virens Corda (5.7%), Aspergillus japonicus Saito (10.3%), Trichoderma harzianum Rifai (10.4%), T. koningii Oud. Aggr. (4.6%), Pestalotiopsis guepini (Desmazieres) Steyaert (12.6%) and Mycelia sterilia (22.9%). Knowledge about these fungi and their relationship with Simuliidae larvae can contribute to their use in biological control of disease vectors and to their use in biotechnological studies, with fungal lineages selected for economic potential

Os intrumentos da politica nacional de recursos hídricos na região norte do Brasil

The Amazon region possesses a wide variety of potential economic uses associated with its natural resources. Water resources by themselves represent a large part of the wealth of the region, not only in economic terms but also in social and environmental terms. The present study discusses the implementation of the National Policy for Water Resources (PNRH) with regard to the implementation of its instruments (the Plan for Water Resources, the classification of the water bodies into use classes, the granting of use rights, the collection of fees for the use of water resources, and an information system for water resources). For these purposes, bibliographical surveys were carried out, the websites of the state and federal governments were consulted, and general searches were conducted on the management of water resources in the states in the northern region of Brazil. As results, we observe that the first steps have been taken with the drafting of state laws related to the PNRH. However, even after14 years have elapsed; the PNRH still does not fulfill its role in managing the water resources of the region. Three of the states in the region are only in the process of developing management plans for hydrographic basins, the great majority of water courses have not yet been classified with respect to their predominant use, the granting of water rights follows a purely bureaucratic process, the information system on the water resources is inefficient, and the collection of fees for the use of the water is far from being viable

Um Microimenóptero Aquático Parasitóide de Ovos de Argia insipida Hagen in Selys (Odonata: Coenagrionidae) e Observações Biológicas na Amazônia Central, Brazil

The tritrophic interaction Argia insipida Hagen in Selys, the Trichogrammatidae egg parasitoid Pseudoligosita longifrangiata (Viggiani) and the host plant Tonina fluviatilis (Eriocaulacea), which is a substrate for egg deposition of A. insipid, was investigated. The study locality was a stream with rapids where macrophytes such as T. fluviatilis grow. Information on aquatic egg parasitoids is scarce. This is the first record of egg parasitism of A. insipida by P. longifrangiata in Brazil, and the first record of occurrence of P. longifrangiata in the country. Parasitized and unparasitized eggs of A. insipida were observed only on leaves 0-5 cm below the water surface. The maximum number of pairs of A. insipida laying eggs in the study area was observed between 13:00h and 14:00h. Leaves of T. fluviatilis become yellowish and dry out when large numbers of eggs of A. insipida are laid on them