Comparison of the reproductive behavior between isolated Peckia chrysostoma (Wiedemann, 1830) and Adiscochaeta ingens (Walker, 1849) (Diptera: Sarcophagidae) females reared in laboratory

Abstract

In both species, maintained under laboratory environmental conditions, anautogeny was comproved and all females that had free access to proteic source were fertiles. We obtained the following average values for Peckiachrysostoma: 59.7 ± 15.6 and 81.8 ± 15.4 days of longevity in the respective cases of free access and no access to proteic source, 21.4 ± 4.3 days of pre-larviposition period and 35.2 ± 16.5 days of larviposition period, 5.3 ± 1.8 larvipositions female with 7.0 ± 1.1 days of periodicity, 35.7 ± 6.1 larvae per larviposition leading to a total number of 183.8 ± 69.2 viable larvae per female and 94.8% ± 5.3% of productivity. The mean number of ovarioles per female was 56.4 ± 9.8, resulting in a reproductive potential of 63.3%. For Adiscochaeta ingens, the obtained average values were: 41.3 ± 6.3 and 52 ± 13.1 days of longevity in the respective cases of free access and no access to proteic source, 15.3 ± 1.7 days of pre-larviposition period and 21.5 ± 7.5 days of larviposition period, 3 ± 0.7 larvipositions per female with 10.4 ± 0.8 days of periodicity, 30.3 ± 8.2 larvae per larviposition leading to a total number of 78.5 ± 21.7 viable larvae per female and 90.1% ± 16% of productivity. The mean number of ovarioles per female was 54.6 ± 5.2, resulting in a reproductive potential of 55.5%. Within applied parameters, the values obtained for P. chrysostoma demonstrate its superior productivity in comparison with A. ingen

Scavengers flesh flies (Diptera, Sarcophagidae) from two phytophysiognomies in the state of Maranhão, Northeastern of Brazil

“…We collected a total of 3,220 sarcophagid specimens, of which 2,346 (72.85%) were female and 874 (27.15%) were male (Table 1). Females were more abundant in carcasses and traps containing decomposing animal tissue because they use these substrates as larviposition sites and as a protein source for egg development (Ferraz 1992, Archer & Elgar 2003, Bänziger & Pape 2004). Thus, including females in the analyses can improve the reliability of the results regarding ecological and forensic issues.…”

Morfología del primer y segundo estadio larval de Peckia (Peckia) chrysostoma (Wiedemann, 1830) (Diptera, Sarcophagidae)

“…Several studies have shown the importance of P. (P.) chrysostoma in forensic entomology (Ferraz 1992, D'Almeida 1988, 1989. Larvae have been found in enphysematous and colliquative stages of corpse decomposition (pers.…”

“…In Oceania, there are some records in Cook Island and the French Polynesia (Pape 1996). This species has been found during the advanced stages of decomposition in the Cerrado area of Brazilian Federal District (Barros et al 2008), Cerrado area of Minas Gerais State near to Uberlândia (Barbosa et al 2009), Campinas in São Paulo State (Moretti et al 2008), and in Rio de Janeiro in Brazil (D'Almeida 1988, 1989, Ferraz 1992, 1995, Oliveira et al 2002, Barbosa et al 2009), Santa Cruz in Costa Rica (Jirón et al 1983), and Villavicencio in Colombia (pers. obs.…”