| 词条 | Chaetocnema pulicaria |
| 释义 |
|image=Cornfleabeetle.jpg | name= Chaetocnema hortensis |regnum=Animalia |phylum=Arthropoda |classis=Insecta |ordo=Coleoptera |familia=Chrysomelidae |genus=Chaetocnema |species=C. hortensis |binomial=Chaetocnema hortensis |binomial_authority=F. E. Melsheimer, 1880 }}Chaetocnema hortensis, also known as the corn flea beetle[1] and clover flea beetle,[2] is a species of flea beetle from Chrysomelidae family, found in Texas, USA[3] and Canada.[4] DescriptionThe species is black in color, with orange legs and antennae.[3] Their size is quite small, about {{convert|1/16|in}} long.[5] Species lifecycleThe females lay eggs in soil, which has plants growing nearby. The eggs hatch in 7 to 14 days into larvae. While in their larval stage, their small, worm-like bodies are white. The larvae feed especially on plants' roots, causing serious damage. Then, they transform into pupae, and a week later, into adults.[5] PestThe species is known for causing damage to crops. The damaged plants include sorghum, soybeans, sweet corn, small grains, and some vegetables.[6] They feed on both sides of a leaf (upper and lower parts), including epidermis and the veins. They also transmit Stewart's wilt; by removing the leaf tissue from the plant, they open a wound which allows the disease to begin spreading from plant to plant. The disease organism is Pantoea stewartii. References1. ^{{cite web|url=http://zipcodezoo.com/Animals/C/Chaetocnema_pulicaria/|title=Chaetocnema pulicaria (Corn Flea Beetle)|publisher=Zipcode zoo|accessdate=23 February 2012}} {{Taxonbar|from=Q5066627}}2. ^Second common name 3. ^1 {{cite web|url= http://bugguide.net/node/view/353196|title=Chaetocnema pulicaria|publisher=Bug Guide|accessdate=24 February 2012}} 4. ^{{cite web|url=http://www.discoverlife.org/mp/20q?search=Chaetocnema+pulicaria|title=Chaetocnema pulicaria|publisher=Discover life|accessdate=24 February 2012}} 5. ^1 {{cite web|url= http://web.entomology.cornell.edu/shelton/veg-insects-ne/pests/cornfb.html|title=Chaetocnema pulicaria |publisher=Entomology.cornell.edu|accessdate=24 February 2012}} 6. ^Pest 3 : Galerucinae|Beetles described in 1880|Beetles of North America |
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