Bionomy of two flies of sanitary and forensic importance: Peckia (Sarcodexia) lambens (Wiedemann) and Oxysarcodexia amorosa (Schiner) (Diptera, Sarcophagidae)

Abstract

Please cite this article in press as: da Silva Xavier, A., et al. Bionomy of two flies of sanitary and forensic importance: Peckia (Sarcodexia) lambens (Wiedemann) and Oxysarcodexia amorosa (Schiner) (Diptera, Sarcophagidae). Rev. Brasil. Entomol. (2015). http://dx.G Model RBE-38; No. of Pages 5 Revista Brasileira de Entomologia xxx (2015) xxx-xxx w w w . r b e n t o m o l o g i a . c o m a b s t r a c tThis study aims to elucidate the bionomy of Peckia (Sarcodexia) lambens and Oxysarcodexia amorosa to provide data for medical, veterinary and forensic entomology analyses. We analyzed larval stage duration (L1-L3), weight of the mature larvae (L3), pupal stage duration, L1-adult duration, adult emergence and viability of larvae and adults of both species. Larval viability of P. (S.) lambens was 82% and the mean duration of the larval stage was 3.51 ± 0.99 days. The mature larvae had a mean weight of 33.67 ± 7.13 mg. The mean duration of the pupal stage was 8.26 ± 0.93 days and the mean duration of the L1-adult was 11.53 ± 1.22 days. Mean lifespan for females and males was 39.33 ± 1.52 and 57.33 ± 4.72 days, respectively. Larval viability of O. amorosa was 76% and mean duration of larval stage was 3.51 ± 0.64 days. Mature larvae had a mean weight of 28.28 ± 3.38 mg. Mean duration of the pupal stage was 10.14 ± 0.63 days and mean duration of the L1-adult was 13.60 ± 0.69 days. Mean lifespan for females and males was 83.66 ± 15.94 and 84.00 ± 19.97 days, respectively. Oxysarcodexia amorosa showed a L1-adult stage longer than P. (S.) lambens; however both species showed low viability. O. amorosa laid more larvae than P. (S.) lambens, this fact may occur because O. amorosa had longer life duration.

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“…africa (89.83%) and byLoureiro et al (2005) for P. (P.) intermutans (86.7%). The pupal viability of P. (E.) anguilla in both experiments (43.6% and 53.3% in the first and second experiments, respectively) approached the results obtained byFerraz (1995) in her studies with P. (P.) chrysostoma (69.9%) and those obtained by da-Silva-Xavier et al (2015) for P. (S.) lambens (65.24%).The mean pupal period of P. (E.) anguilla and P. (E.) collusor corroborates with the observations of several other authors, who affirm that the duration of the pupal period of dipterans of the family Sarcophagidae, in temperatures close to 27 ° C, ranges from 10 to 20 days(Nishida 1984;Ferraz 1995;da- Silva-Xavier et al 2015). The mean duration was 13.3 ± 2.9 days and 14 ± 2.2 days for P. (E.) anguilla and 12.5 ± 1.3 days and 14.8 ± 1.3 days for P. (E.) collusor, in the first and second experiments, respectively; these results are close to the values observed bySalviano et al (1996) for P. (S.) trivittata(15.7 days), byLoureiro et al (2005) for P. (P.) intermutans(13.87 days), byOliveira-da-Silva et al (2006) for P. (P.) smarti (17.93 days) at 26.6 °C and for P. (P.) pallidipilosa (15.87 days) at 25.9 °C, and by Nassu et al (2014) for S. (L.) ruficornis (12 days) and M. halli (14 days).…”

“…The values found for the larval period of the species studied in this study can be considered high when compared with other species of the same family analyzed at 27 ºC. Da- Silva-Xavier et al (2015) obtained 3.51 days of larval period of P. (S.) lambens and O. amorosa, similar to the 3.7 and 3.9 days found by Ferraz (1995) in her studies of the bionomics of Peckia (Peckia) chrysostoma at 25.9 and 27 °C, respectively. The duration of this period found by Salviano et al (1996) 238 mg for females.…”

“…In the second experiments with P. (E.) anguilla at 27 ºC a larva presented 17.8 mg of larval body mass, differing from the mean of larval body mass, but was able to continue its development, giving rise to a male adult insect. In relation to the species O. amorosa, da- Silva-Xavier et al (2015) did not observe a limiting weight, since adults emerged from pupae with a minimum weight of 14 mg. This finding was also observed in the experiments performed with P. (E.) collusor, the lowest value found for the body mass of an L3 was 60.4 mg, but this was able to carry out the pupation process, develop and generate an adult without anomalies.…”

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“…The values found for the larval period of the species studied in this study can be considered high when compared with other species of the same family analyzed at 27 ºC. Da-Silva-Xavier et al (2015) obtained 3.51 days of larval period of P. (S.) lambens and O. amorosa, similar to the 3.7 and 3.9 days found by Ferraz (1995) in her studies of the bionomics of Peckia (Peckia) chrysostoma at 25.9 and 27 °C, respectively. The duration of this period found by Salviano et al (1996) 238 mg for females.…”

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“…Oxysarcodexia sp. ), since these were locally abundant on the same localities where spiders and the other prey were collected and also, because these flies act mainly as decomposers (Xavier, Barbosa, Barbosa, & Queiroz, 2015), representing another ecologically important role besides predators and pests. We collected a different number of individuals for each prey species based on their availability in the field (Table 1).…”