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| ==Description== | ==Description== | ||
| ] | ] | ||
| C. pennsylvanicus can be distinguished from other carpenter ant species by the dull black color of the head and body, and by whitish or yellowish hairs on the ]. All ] of this species (including the major and minor workers, ], and males) are black or blackish. |
C. pennsylvanicus can be distinguished from other carpenter ant species by the dull black color of the head and body, and by whitish or yellowish hairs on the ]. All ] of this species (including the major and minor workers, ], and males) are black or blackish. Black carpenter ants are ], workers can be in different sizes. The queens can reach a length of 19–21 mm and the largest workers (super majors) can achieve similar sizes of around 14–17 mm . They, along with several other Camponotus species, are among the largest species of ant in North America. As with all ants, the antennae are elbowed. Workers usually have 12 antenna segments. ]s typically have yellowish wings. | ||
| ==Behavior== | ==Behavior== | ||
Revision as of 14:58, 21 December 2020
Species of American ant (Camponotus pennsylvanicus) | This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Black carpenter ant" – news · newspapers · books · scholar · JSTOR (November 2013) (Learn how and when to remove this message) |
| Black carpenter ant | |
|---|---|
| |
| Camponotus pennsylvanicus worker | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Genus: | Camponotus |
| Species: | C. pennsylvanicus |
| Binomial name | |
| Camponotus pennsylvanicus (De Geer, 1773) | |
Camponotus pennsylvanicus, or the black carpenter ant, is one of the largest and most common species of carpenter ant native to the central and eastern United States as well as eastern Canada.
Description
C. pennsylvanicus can be distinguished from other carpenter ant species by the dull black color of the head and body, and by whitish or yellowish hairs on the abdomen. All castes of this species (including the major and minor workers, queens, and males) are black or blackish. Black carpenter ants are polymorphic, workers can be in different sizes. The queens can reach a length of 19–21 mm and the largest workers (super majors) can achieve similar sizes of around 14–17 mm . They, along with several other Camponotus species, are among the largest species of ant in North America. As with all ants, the antennae are elbowed. Workers usually have 12 antenna segments. Alates typically have yellowish wings.
Behavior
Black carpenter ants are known to forage up to 100 yd (91 m) in search of food, establishing chemical (pheromone) trails as they forage. Nests can contain thousands of individuals, and such large nests may be noticed by the audible cracking sound the workers produce. The black carpenter ant cannot sting, but the larger workers can administer a sharp bite, which can become further irritated by the spraying of formic acid onto the wound. Workers tend aphids, with the smaller workers collecting honeydew and transferring it to larger workers that carry it back to the nest. In addition, foragers feed on dead insects and plant juices.
Range
The black carpenter ants range is almost everywhere east of the Rocky Mountains in woodlands, forest edges, and suburban communities.
Control measures
In their natural environment, carpenter ants nest in dead trees and other dead wood. This enhances decay, which has ecological benefits. However, the ant achieves pest status when a colony invades the wood of a house or other structure, damaging its structural integrity.
Since they favor moist wood as a habitat, any condition that promotes moisture should be eliminated to prevent infestation. The easiest of these is keeping gutters clear so water does not run down the side of the structure or gain entry. Moist wood is much easier to chew. The ants do not eat the wood, but remove it to create galleries for their activities. The galleries run parallel to the grain, as they are created in the softer, nonlignin portions of the timber. The galleries have a sandpaper-like feel, due to fecal remnants, but the mud tubes produced by termites will not be present.
References
- "Camponotus pennsylvanicus - AntCat". antcat.org. Retrieved 2020-08-28.
- BUCZKOWSKI, GRZEGORZ (2010-11-15). "Suburban sprawl: environmental features affect colony social and spatial structure in the black carpenter ant, Camponotus pennsylvanicus". Ecological Entomology. 36 (1): 62–71. doi:10.1111/j.1365-2311.2010.01245.x. ISSN 0307-6946.
- Sanders, C. J. (November 1972). "Seasonal and Daily Activity Patterns of Carpenter Ants (Camponotus SPP.) in Northwestern Ontario (Hymenoptera: Formicidae)". The Canadian Entomologist. 104 (11): 1681–1687. doi:10.4039/ent1041681-11. ISSN 0008-347X.
- "Black Carpenter Ant Camponotus pennsylvanicus". NWF The National Wildlife Federation. Retrieved 6 September 2018.
- http://lancaster.unl.edu/pest/resources/carpant004.shtml Carpenter Ant Management
External links
Media related to Camponotus pennsylvanicus at Wikimedia Commons
| Taxon identifiers | |
|---|---|
| Camponotus pennsylvanicus | |