The immature stages and natural history of Mygona irmina Doubleday (Lepidoptera: Nymphalidae: Satyrinae: Pronophilina) from northeastern Ecuadorian cloud forests are described based on 17 rearings. The dwarf bamboo, Chusquea c.f. scandens Kunth (Poaceae, Bambusoidea) is the larval food plant. Eggs are laid singly on the bottom side of mature host plant leaves. Larvae take 102-109 days to mature...

The article presents the thermal technical calculation of underground heat accumulator, which is used to prevent a sharp increase in air temperature hothouses on sunny days and accumulate solar energy. coefficient transfer by air-pipe pipe-soil boundary layers between 20-35 °C air-driven accumulator with help ventilator was calculated analytical method. mathematical model change time length dur...

To test the hypothesis that the divaricate habit protects internal leaves from cold and dry conditions, and raises leaf temperatures on cold sunny days, thermocouples were attached to internal and external leaves on divaricate plants. For Coprosma propinqua plants at Cass, inland Canterbury, there were consistent differences in temperature between leaves, but these were not simply related to th...

Childhood sun protection is important to reduce the risk of developing skin cancer later in life. An evaluation of an expanded version of the Sunny Days, Healthy Ways sun safety instructional program was conducted with 744 students in 77 kindergarten to fifth grade classes in 10 elementary schools. Students in six schools received instruction twice over two school years. Students in four school...

Male Hybomitra illota (Osten Sacken) were found aggregating in clearings in wooded areas in Rondeau Provincial Park, Ontario, Canada. At these sites they perched on a variety of substrates, and made frequent flights in pursuit of insects flying overhead. We know that these pursuit flights were part of the mating behaviour because some pursuits of female H. illota resulted in copulation. We call...