Multi-Gas Detector Confined Space Kit, Detects Combustible, Oxygen, Carbon Monoxide, Hydrogen Sulfide, Nitrogen Dioxide, Sensor Range LEL 0 to 100 Percent, O2 0 to 30 Percent vol., CO 0 to 1500ppm, H2S 0 to 500pmm, NO2 0 to 150 ppm, Housing Color Black, Operating Temp.
Freebase (0.00 / 0 votes) Rate this definition: Monarch butterfly. The Monarch butterfly is a milkweed butterfly in the family Nymphalidae. It is perhaps the best known of all North American butterflies. Since the 19th century, it has been found in New Zealand, and in Australia since 1871, where it is called the wanderer.
Twelve Native Milkweeds for Monarchs. The monarch butterfly population in North America has plummeted by over 90% in just the last 20 years. Destruction of Americaâs grasslands ecosystems, commercial agricultural practices and even conventional gardening have all contributed to the precipitous decline of this iconic species.