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In this study we describe the diversity of Mesembrinelinae in a biological reserve in the city of Nova Iguaçu, State of Rio de Janeiro. Traps containing sardines were distributed seasonally, at four sites: Site A (22° 58.788' S, 43° 43.459' W), in a forest edge, and sites B (22° 58.523' S, 43° 44.540' W), C (22° 58.350' S, 43° 44.678' W), and D (22° 34.865' S, 43° 27.063' W), located 1,000m, 500m, and 2,000m respectively, inwards from the edge. A total of 2,150 individuals of Mesembrinellinae were collected, representing ten species. Laneela nigripes Guimarães, 1977 was the most abundant species, followed by Mesembrinella bellardiana Aldrich, 1922, Eumesembrinella cyaneicincta (Surcouf, 1919) and Mesembrinella semihyalina Mello, 1967. These species were common and constant during the study period. Mesembrinella batesi Aldrich, 1922, Eumesembrinella quadrilineata (Fabricius, 1805) and Huascaromusca aeneiventris (Wiedmann, 1830) were the less abundant flies, being considered rare and accidental. Eumesembrinella besnoiti (Seguy, 1925) was rare and accessory. Eumesembrinella cyaneicincta, M. bellardiana, M. semihyalina and M. bicolor were mostly collected in site B, while L. nigripes was mostly collected in site C. The edge effect was not evident since the four sites showed similar populations. Site B showed a strong positive relationship between abundance and richness, in site C the correlation was positive and weak, and there was no correlation in A and D. The highest abundance of specimens was recorded during autumn and winter. These flies occurred from the edge up to 2,000m inside the forest. [ABSTRACT FROM AUTHOR]

The article discusses a study on the effect of mean temperature and relative humidity variation on abundance of blowflies in Rio Grande do Sul, Brazil between July 2003 and June 2004. The study installed the Wind Oriented Trap (WOT) with beef liver as bait in three environments for 10 days which attracted 13, 860 flies classified into 16 species. It also considered the implications of the abundance of blowflies for animal management and public health.

The article focuses on a study which analyzed calliphorid attraction to traps painted in a variety of colors and the calliphorid constancy index in the Tingua Biological Reserve, Rio De Janeiro, Brazil. The species were colledted monthly between 2002 and 2005 which totaled to 24 samplings. The differences in the total abundance between species and in their color selection were analyzed. Study findings suggested that the three most frequent species were responsible for over 60% of the total calliphorid number sampled, in addition to being constant species throughout the year.