Chlorochroa ligata - conchuela bug
Size: 13-20mm
Description: Ranges from bright to dark green (almost black in some regions) with a bright band along the edge of pronotum and abdomen ranging from red to yellow. Antennae are solid black. Many have a lighter colored spot at the tip of the scutellum. Nymphs tend to be mostly black except for the margins of their abdomen and pronotum, which is white to yellow. In other regions of the country, the color is highly variable. Wings reportedly with purple specks on specimens outside of Oregon and Washington. Defensive liquid smells sour and candy-like.
Hosts: Wide range of hosts including Oregon grape, on which it is very common, English holly, winegrapes, Himalayan blackberry, hawthorn, and arborvitae (Thuja spp.). C. ligata is considered a pest of apples in California and of cotton in New Mexico.
Range: Very common throughout western and southern Oregon, and is found in the western United States.
Note: Chlorochroa species look very similar and are difficult to determine to species without examining internal anatomy. The descriptions in this guide are based on descriptions from “Revision of the species of the Sayi-Group of Chlorochroa Stal (Hemiptera: Pentatomidae)” by Buxton et al. California Dept. of Food and Agriculture, 1983).
Description: Ranges from bright to dark green (almost black in some regions) with a bright band along the edge of pronotum and abdomen ranging from red to yellow. Antennae are solid black. Many have a lighter colored spot at the tip of the scutellum. Nymphs tend to be mostly black except for the margins of their abdomen and pronotum, which is white to yellow. In other regions of the country, the color is highly variable. Wings reportedly with purple specks on specimens outside of Oregon and Washington. Defensive liquid smells sour and candy-like.
Hosts: Wide range of hosts including Oregon grape, on which it is very common, English holly, winegrapes, Himalayan blackberry, hawthorn, and arborvitae (Thuja spp.). C. ligata is considered a pest of apples in California and of cotton in New Mexico.
Range: Very common throughout western and southern Oregon, and is found in the western United States.
Note: Chlorochroa species look very similar and are difficult to determine to species without examining internal anatomy. The descriptions in this guide are based on descriptions from “Revision of the species of the Sayi-Group of Chlorochroa Stal (Hemiptera: Pentatomidae)” by Buxton et al. California Dept. of Food and Agriculture, 1983).
Chlorochroa rossiana
Size: 10-15mm
Description: Bright green oval shape with yellow edges along abdomen. Small depression running along the middle of the scutellum. Juga extend just past the tylus. If small spots are present on the base of the scutellum, they are weak and indistinct, otherwise they are not present. Wing membrane is clear or colorless. Antennae are dark, except for the rst segment which is green. Literature on this species is scarce.
Hosts: Found on Oregon grape, spectacle pod (Dithyrea maritma), groudsel (Senecio vulgaris), clover (Trifolium spp.), alfalfa (Medicago sativa), and cocklebur (Xanthium strumarium).
Range: Specimens in Oregon collected from Central and SE Oregon, but entire range is unknown.
Note: Chlorochroa species look very similar and are difficult to determine to species without examining internal anatomy. The descriptions in this guide are based on descriptions from “Revision of the species of the Sayi-Group of Chlorochroa Stal (Hemiptera: Pentatomidae)” by Buxton et al. California Dept. of Food and Agriculture, 1983).
Description: Bright green oval shape with yellow edges along abdomen. Small depression running along the middle of the scutellum. Juga extend just past the tylus. If small spots are present on the base of the scutellum, they are weak and indistinct, otherwise they are not present. Wing membrane is clear or colorless. Antennae are dark, except for the rst segment which is green. Literature on this species is scarce.
Hosts: Found on Oregon grape, spectacle pod (Dithyrea maritma), groudsel (Senecio vulgaris), clover (Trifolium spp.), alfalfa (Medicago sativa), and cocklebur (Xanthium strumarium).
Range: Specimens in Oregon collected from Central and SE Oregon, but entire range is unknown.
Note: Chlorochroa species look very similar and are difficult to determine to species without examining internal anatomy. The descriptions in this guide are based on descriptions from “Revision of the species of the Sayi-Group of Chlorochroa Stal (Hemiptera: Pentatomidae)” by Buxton et al. California Dept. of Food and Agriculture, 1983).
Chlorochroa uhleri
Size: 10-15mm
Description: Bright green oval shape with yellow edges along abdomen. Small depression running along the middle of the scutellum. Juga extend just past the tylus. If small spots are present on the base of the scutellum, they are weak and indistinct, otherwise they are not present. Wing membrane is clear or colorless. Antennae are dark, except for the rst segment which is green. Literature on this species is scarce.
Hosts: Found on Oregon grape, spectacle pod (Dithyrea maritma), groundsel (Senecio vulgaris), clover (Trifolium spp.), alfalfa (Medicago sativa), and cocklebur (Xanthium strumarium).
Range: Specimens in Oregon collected from Central and SE Oregon, but entire range is unknown.
Note: Chlorochroa species look very similar and are difficult to determine to species without examining internal anatomy. The descriptions in this guide are based on descriptions from “Revision of the species of the Sayi-Group of Chlorochroa Stal (Hemiptera: Pentatomidae)” by Buxton et al. California Dept. of Food and Agriculture, 1983).
Description: Bright green oval shape with yellow edges along abdomen. Small depression running along the middle of the scutellum. Juga extend just past the tylus. If small spots are present on the base of the scutellum, they are weak and indistinct, otherwise they are not present. Wing membrane is clear or colorless. Antennae are dark, except for the rst segment which is green. Literature on this species is scarce.
Hosts: Found on Oregon grape, spectacle pod (Dithyrea maritma), groundsel (Senecio vulgaris), clover (Trifolium spp.), alfalfa (Medicago sativa), and cocklebur (Xanthium strumarium).
Range: Specimens in Oregon collected from Central and SE Oregon, but entire range is unknown.
Note: Chlorochroa species look very similar and are difficult to determine to species without examining internal anatomy. The descriptions in this guide are based on descriptions from “Revision of the species of the Sayi-Group of Chlorochroa Stal (Hemiptera: Pentatomidae)” by Buxton et al. California Dept. of Food and Agriculture, 1983).