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.

Immatures of tapuruia Felisbertoi Lane, 1973 (Cerambycidae, Cerambycinae, Hexoplonini)

The larva and pupa of Tapuruia felisbertoi Lane, 1973, collected in Hevea brasiliensis (Euphorbiaceae) in Mato Grosso, Brazil, are described and illustrated. Biological data and a comparison with the larvae of other Hexoplonini species are also presented.

Cat��logo das cole����es entomol��gicas da Faculdade de Sa��de P��blica da Universidade de S��o Paulo (1.a s��rie): Ceratopogonidae, Psychodidae, Simuliidae

Fam��lia CERATOPOGONIDAE: G��nero Alluaudomyia Kieffer, 1913; G��nero Atrichopogon Kieffer, 1906; G��nero Bezzia Kieffer, 1899; G��nero Calyptopogon Kieffer, 1910; G��nero Ceratobezzia Kieffer, 1917; G��nero Clinohelea Kieffer, 1917; G��nero Culicoides Latreille, 1809; G��nero Dasyhelea Kieffer, 1911; G��nero Dicrobezzia Kieffer, 1919; G��nero Dicrohele Lane & Wirth, 1961; G��nero Echinohele Macfie, 1942; G��nero Forcipomya Meigen, 1818; G��nero Heteromyia Say, 1825; G��nero Lasiohelea (Kieffer, 1921); G��nero Leptocanops Skuse, 1889; G��nero Macfiehelea Lane, 1946; G��nero Macropeza Meigen, 1818; G��nero Monohelea Kieffer, 1917; G��nero Nilobezzia Kieffer, 1921; G��nero Pachyhelea Wirth, 1959; G��nero Palpomyia Meigen, 1818; G��nero Parabezzia Malloch, 1915; G��nero Paryphoconus Enderlein, 1912; G��nero Sphaeromias Curtis, 1829; G��nero Stenoxenus Coquillett, 1899; G��nero Stilobezzia Kieffer, 1911; Familia PSYCHODIDAE: G��nero Bruchomyia Alexander, 1920; G��nero Phlebotomus Rondani, 1840; Fam��lia SIMULIIDAE: G��nero Eusimulium Roubaud, 1906; G��nero Lutzsimulium d'Andretta & d'Andretta, 1947; G��nero Prosimulium Roubaud, 1906; G��nero Simulium Latreille, 1802.

Road lane detection for autonomous robot guidance

Computational Vision stands as the most comprehensive way of knowing the surrounding environment. Accordingly to that, this study aims to present a method to obtain from a common webcam, environment information to guide a mobile differential robot through a path similar to a roadway.

Road lane detection for autonomous robot guidance

Computational Vision stands as the most comprehensive way of knowing the surrounding environment. Accordingly to that, this study aims to present a method to obtain from a common webcam, environment information to guide a mobile differential robot through a path similar to a roadway.

Integration of geometric consistency contributory factors in three-leg junctions collision prediction models of Portuguese two-lane national highways

This paper aims at developing a collision prediction model for three-leg junctions located in national roads (NR) in Northern Portugal. The focus is to identify factors that contribute for collision type crashes in those locations, mainly factors related to road geometric consistency, since literature is scarce on those, and to research the impact of three modeling methods: generalized estimating equations, random-effects negative binomial models and random-parameters negative binomial models, on the factors of those models. The database used included data published between 2008 and 2010 of 177 three-leg junctions. It was split in three groups of contributing factors which were tested sequentially for each of the adopted models: at first only traffic, then, traffic and the geometric characteristics of the junctions within their area of influence; and, lastly, factors which show the difference between the geometric characteristics of the segments boarding the junctions�� area of influence and the segment included in that area were added. The choice of the best modeling technique was supported by the result of a cross validation made to ascertain the best model for the three sets of researched contributing factors. The models fitted with random-parameters negative binomial models had the best performance in the process. In the best models obtained for every modeling technique, the characteristics of the road environment, including proxy measures for the geometric consistency, along with traffic volume, contribute significantly to the number of collisions. Both the variables concerning junctions and the various national highway segments in their area of influence, as well as variations from those characteristics concerning roadway segments which border the already mentioned area of influence have proven their relevance and, therefore, there is a rightful need to incorporate the effect of geometric consistency in the three-leg junctions safety studies.

Estudo sobre os Ceratopogon��deos de Minas Gerais: I - Descri����o dos machos de Heteromyia chaquensis Duret & Lane, 1955 e Dasyhelea paulistana Forattini & Rabello, 1957 (Diptera, Ceratopogonidae)

This paper describes some results of a systematic survey of the Ceratopogonidae midges of the State of Minas Gerais, Brazil. Three species, Stilobezzia punctulata Lane, 1947, Heteromyia chaquensis Duret & Lane, 1955 and Dasyhelea paulistana Forattini & Rabello, 1957 were identified from a small lake, "Lagoinha" or "Olhos d'��gua", near to the main lake of Lagoa Santa. The first descriptions of the males of Heteromyia chaquensis and Dasyhelea paulistana are presented.

Two new neotropical species of Monohelea Kieffer and Downeshelea Wirth & Grogan (Diptera: Ceratipogonidae)

Two new Neotropical predaceous midges are described and illustrated, Downeshelea charrua from Uruguay, and Monohelea bidenata from Argentina. The first species is described from female and male specimens; only one male is know from the second.

A New Neotropical Species of Monohelea Kieffer from Uruguay (Diptera: Ceratopogonidae)

A new species of Monohelea Kieffer, M. uruguayensis, is described and illustrated from a male specimen from Uruguay

A new species of predaceous midge of the genus Monohelea Kieffer from Mexico (Diptera: Ceratopogonidae)

A description and illustrations of Monohelea maya, new species, based on male and female characteristics are provided. The specimens were collected in the special biosphere Reserves of Ria Lagartos and Ria Celestun, Yucatan State, Mexico.