Moneilema gigas
Moneilema gigas at the Arizona-Sonora Desert Museum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Cerambycidae
Subfamily: Lamiinae
Genus: Moneilema
Species:
M. gigas
Binomial name
Moneilema gigas
(LeConte 1873)
Moneilema gigas, Pima County, Arizona
Moneilema gigas, Pima County, Arizona

Moneilema gigas is a large, flightless, black beetle native to the Sonoran desert at elevations below 1500 metres.[1] The front wings are fused forming a single, hardened shell. Collectively - with 19 other Moneilema species - M. gigas is also known as the cactus longhorn beetle.

Moneilema gigas normally feeds on chollas and prickly pear cacti, and is known to feed on saguaro seedlings. Larvae bore into cactus roots and stems, sometimes killing more susceptible individuals. Adults also feed on the surface of cacti.[2] M. gigas are most active during mid or late summer - the adults typically emerging during the summer monsoon season.

Like many flightless beetles, these beetles have limited wing musculature with a rounded abdomen and thorax, similar in appearance to a number of other flightless desert beetles. Cactus longhorn beetles resemble and mimic the behavior of noxious stink beetles in the genus Eleodes.[3]

References

  1. ↑ "Historical Biogeography of Longhorn Cactus Beetles" (PDF). Forest Service Proceedings. USDA. Retrieved 2010-11-24.
  2. ↑ "Cactus Longhorn Beetle". Museum of Learning. Discovery Media. Retrieved 2010-11-24.
  3. ↑ "Beetles". Invertebrates. Arizona-Sonora Desert Museum. Retrieved 2010-11-24.
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