Difference between revisions of "Cyclocephala (genus)"
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| − | There is usually one generation per year. The females lay eggs into the soil and there are 3 larval stages with the 3rd instar larvae lasting around 9-10 months and being the overwintering stage. The adult stage lasts only a few weeks and the adults do not feed. However, they have been often observed visiting flowers and are sometimes considered to be useful pollinators. | + | There is usually one generation per year. The females lay eggs into the soil and there are 3 larval stages with the 3rd instar larvae lasting around 9-10 months and being the overwintering stage. The adult stage lasts only a few weeks and apparently the adults do not feed. However, they have been often observed visiting flowers and are sometimes considered to be useful pollinators. |
| − | The beetles typically are around 10-12 mm long and brownish. There is often a darker diffuse band across the eyes and the face giving the beetles the name "masked chafers". | + | The beetles typically are around 10-12 mm long and brownish. There is often a darker diffuse band across the eyes and the face giving the beetles the name "masked chafers". Taxonomically, the members of this genus are characterized, among others, by the shape of the clypeus, the 8-10 segmented antennae, and the maxilla having distinct teeth. |
Revision as of 12:13, 18 March 2016
| Literature database |
|---|
| 39 articles sorted by: |
| • year (recent ones first) |
| • research topics |
| • countries/regions |
| • host plants |
Author(s): Charles Olsen, USDA APHIS PPQ
Source: IPM IMAGES
Cyclocephala (genus) Dejean, 1821 - (masked chafers)
This genus of dynastid beetles contains more than 300 species. They are mainly found in the Americas where several species are considered to be important agricultural pests. The larvae feed on roots or decaying organic matter.
In North America, a number of species are of concern as turf pests, but damage to various other crops has been also reported, e.g. to maize or sugarcane. On grass, the damage can be aggravated by vertebrate predators like crows, raccoons, skunks, and coyotes digging up the turf in search for larvae.
| Vernacular names | |
|---|---|
| • English: | masked chafers |
| • Português: | besouro-amarelo |
There is usually one generation per year. The females lay eggs into the soil and there are 3 larval stages with the 3rd instar larvae lasting around 9-10 months and being the overwintering stage. The adult stage lasts only a few weeks and apparently the adults do not feed. However, they have been often observed visiting flowers and are sometimes considered to be useful pollinators.
The beetles typically are around 10-12 mm long and brownish. There is often a darker diffuse band across the eyes and the face giving the beetles the name "masked chafers". Taxonomically, the members of this genus are characterized, among others, by the shape of the clypeus, the 8-10 segmented antennae, and the maxilla having distinct teeth.
The literature database currently contains 39 publications for Cyclocephala (genus). Please note that literature records for genera may not be complete. See box above on left for queries from the literature database.
Currently, the following species have been entered into the system:
