vtspaid's Identifications

Over a dozen individuals flying low in open woods. The display consisted of paired flashes with an interpulse interval of 1.3 seconds at 77 degrees Fahrenheit. The photographed individual measured 8mm in total length. Clear, no wind, and mGDD starting from February 1 was ~3419.

At this temperature, this population is closer to what would be expected for P. greeni (1.3 seconds) than P. macdermotti (1.7 seconds).

Observations were also made on 8/18/2023 at 75.5 degrees with an interpulse interval of 1.5 seconds and on 8/21/2023 at 78 degrees with an interpulse interval of 1.2 seconds. These intervals are what would be predicted for P. greeni at the respective temperatures.

For the predicted interpulse interval of P. greeni I consulted Figure 1 in Michaelidis et al. (2006) https://academic.oup.com/beheco/article/17/3/329/201368. For P. macdermotti I consulted FIgure 2 in Lloyd (1984) https://www.jstor.org/stable/3493942.