Levantamento da diversidade de moscas varejeiras na região de Dourados - MS

Abstract

The gadflies are Calliphoridae of great importance for medical-veterinary pathogens they transmit and cause myiasis in animals and man and yet to be extremely useful to assist in forensic entomology for medical and criminal investigation, allowing to obtain information post-mortem, a since they feed and breed in decaying organic matter. Considering the need for local studies on the faunal succession, for application in forensic entomology, this paper seeks to contribute to the knowledge of the fauna found Muscoid scavenging on carcasses of rats in the University Campus of the Dourados - MS in addition to a comparison of morphometric characteristics and fecundity of the species found. During the five month study, 1,111 specimens were captured Calliphoridae (765) and Sarcophagidae (346). Chrysomya albiceps (32.95%) was the most abundant species followed by Sarcophagidae (31.14%) and C. megacephala (27.36%). The correlation between the abundance of individuals and temperature appeared weak and negative for C. albiceps (- 0.1907) and Lucilia sp. (0.3566), and moderate and positive for C. megacephala (0.6168) and Sarcophagidae (0.5202). C. albiceps and C. megacephala present significant differences in the abundance of males and females (χ 2 = 111.0323, p <0.00001) and (χ 2 = 118.4768, p <0.00001) respectively. The correlation between wing length and tibia was moderate and positive for females of C. albiceps (0.5683) and males of C. megacephala (0.5176) for males of C. albiceps was weak and positive (0.1469) while for females of C. megacephala was strong and positive (0.6304). The differences were not significant between the tibia length and wing length for both species. C. megacephala has higher fertility than C. albiceps. The correlation analysis showed a strong positive association between fertility and abundance of individuals to C. albiceps (0.7721) and low and positive (0.0701) for C. megacephala. The χ 2 test showed significant difference between the abundance of eggs of C. albiceps and C. megacephala (χ 2 54.94, p <0.00001). The analyzing of correlation between the fecundity of the species and the average temperature throughout the work it was observed that for C. albiceps the correlation is weak and negative (- 0.1505) and C. megacephala is weak and positive (0.4308).