Effect of temperature on pupa development and sexual maturity of laboratory Anastrepha obliqua adults

Abstract

The effect of four temperatures (18, 20, 25 and 30°C) on pupa development and sexual maturity of Anastrepha obliqua adults was investigated under laboratory conditions. The results showed that the duration of the pupal stage decreased with an increase in temperature (29, 25, 13 and 12 days, respectively), and maintaining the pupae at 18°C and 20°C results in a low percentage of pupation, pupa weight loss and lesser flying ability. However, it significantly favored sexual behavior, a higher proportion of sexual calls and matings. While enhanced pupa development was observed at a temperature of 30°C, adults had low sexual efficiency, as well as a lower proportion of calls and matings. Gas chromatography-mass spectrometry (GC-MS) analysis of male volatiles showed that the amount of (Z,E)-α-farnesene did not vary among males from pupae reared at different temperatures; however, less (E,E)-α-farnesene was emitted by males obtain from pupa reared at 30°C. Male flies kept at 30°C during their larval stage had more (Z)-3-nonenol and, also, an unknown compound was detected. The fecundity of the females was higher at low temperatures. Regarding fertility, no significant differences were found between temperatures. The optimal temperature on pupa development was 25°C when males displayed ideal attributes for rearing purposes.

Growth, development, and life‐history strategies in an unpredictable environment: case study of a rare hoverfly Blera fallax (Diptera, Syrphidae)

“…The duration of the pupal stage decreased significantly with the day in the year on which pupation took place, a phenomenon probably triggered by photoperiod (Gotthard, ). While it is not known if there are any associated costs in B. fallax , in other Dipteran species lower fecundity is associated with a decreased pupal development time (Telles‐Romero et al , ).…”

The current and future potential geographic range of West Indian fruit fly, Anastrepha obliqua (Diptera: Tephritidae)

“…Pupae maintained at 18°C and 20°C had a low percentage of pupation, increased pupal weight loss, decreased flying ability but a higher proportion of sexual calls and matings. While enhanced pupal development was observed at a temperature of 30°C, adults had low sexual efficiency, as well as a lower proportion of calls and matings (Telles‐Romero et al ., ). Numerous studies of raisings of A. obliqua population were completed within the temperature range of 20–30°C (Saldanha & Silva, ; Artiaga‐Lopez et al ., ; Cresoni‐Pereira & Zucoloto, ).…”

“…Telles‐Romero et al . () reared A. obliqua pupae in the laboratory at four temperatures (18, 20, 25 and 30°C) to assess the effect temperature had on pupal development and adult sexual maturity. Pupae maintained at 18°C and 20°C had a low percentage of pupation, increased pupal weight loss, decreased flying ability but a higher proportion of sexual calls and matings.…”

Optimization of total vaporization solid-phase microextraction (TV-SPME) for the determination of lipid profiles of Phormia regina, a forensically important blow fly species

“…Although other techniques exist for collecting the gaseous chemicals given off by the insects (for example, using a volatile trap [7]) SPME has a published record of use for the determination of insect-related compounds. However, these studies have typically involved the examination of insects other than blowflies [8][9][10][11][12][13].…”

“…An interest in the biochemistry and physiology of flies has driven much of the research. For example, some scientists have sought a better understanding of the pheromones that drive sexual activity with an eye toward pest control applications [7], while others have devoted themselves to elucidating the antimicrobial and bacteriostatic effects of certain cuticular lipids [19]. Still others have made efforts to catalogue the insects' chemical profiles for chemotaxonomy purposes [17], or to develop new instrumental methods for age and species determination, which would be of tremendous use in forensic investigations relying on entomological evidence, serving to facilitate better postmortem interval (PMI) estimates [16].…”