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.
The underside of the monarch butterflies' wings can be seen when the butterfly is at rest or when it is feeding on a flower. Instead of bright orange, the underside is more drab and orange-brown. Males and females can be told apart by looking at the top of their hind wings.rilliant orange and black monarchs are among the most easily recognizable of the butterfly species which call the Americas home. Their migration takes them as far north as Canada and, during the winter months, as far south as Mexico City. A single monarch can travel hundreds to thousands of miles!