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Galerucella Medvedevi
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Lineola
''Galerucella lineola'' is a species of leaf beetle in the family Chrysomelidae. Description ''Galerucella lineola'' can reach a length of . The body is almost cylindrical. The basic color is brownish-yellow with a darker spot on the pronotum and on the elytra. The antennae are black. It has a black underside. The legs are slightly lighter. The larvae are gray-white to brownish and resemble small caterpillars. Food plants include '' Salix alba'', ''Salix viminalis'', '' Salix caprea'', ''Salix pentandra'', ''Salix cinerea'', ''Salix myrsinifolia'', '' Salix fragilis'', ''Populus nigra'', ''Corylus avellana'', ''Alnus glutinosa'', '' Betula pendula'', and '' Alnus incana''. These beetles are considered by some a pest and can in some years do great damage to the foliage gnawing holes in the leaves. Distribution This species is widespread in the Palearctic realm from Ireland to Japan, in the Near East, and in North Africa North Africa, or Northern Africa is a region encompas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Grisescens
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Pusilla
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the bud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Medvedevi
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Fossata
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Calmariensis
''Galerucella calmariensis'' is a species of leaf beetle in the family Chrysomelidae. It is commonly known as the black-margined loosestrife beetle and is native to Europe and Asia where both adults and larvae feed on purple loosestrife ('' Lythrum salicaria''). It has been introduced in North America as a biological control agent for purple loosestrife. Description The black-margined loosestrife beetle is cylindrical in shape, mid brown, three to six millimetres long and half that width. When seen from above it often has two blackish lateral lines down either side. The eggs are spherical, white and usually topped with frass. The larvae are yellow speckled with black and resemble small caterpillars. Biology left, Black-margined loosestrife beetle larva Adults overwinter in leaf litter near purple loosestrife plants. They emerge in the spring and start to feed on the young growth. They cause damage to the leaves characterised by neat rounded shot holes between the veins. The f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Anserina
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Sagittariae
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Placida
''Galerucella placida'', is a species of leaf beetle found in South Asia, Southeast Asia and Australia. It is widely used as a bio-control agent in many rice and wheat fields to control weeds. Description Adult female is larger than male. Adult male is about 5.60 mm in length whereas adult female is 6.25 mm in length. Total life cycle of the beetle ranges from 21 days. Eggs are bright yellow, with pyriform basally rounded and oval tip. Length of an egg is about 0.67 mm. The incubation period is about 3 days. There are three larval stages. First instar is yellowish and 1.26 mm in length. Initially second instar is also yellowish, but turn to blackish brown after an hour of feeding. Total length of second instar is about 2.64 mm. The third and final instar is about 5.59 mm in length and blackish brown. Total larval duration is about 13 days. Pupa is black and 4.58 mm in length. Biology Adult beetles are often used as biocontrol agents on the many invasive weeds such as ''Rumex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allenby Formation
The Allenby formation is a sedimentary rock formation in British Columbia which was deposited during the Ypresian stage of the Early Eocene. It consists of conglomerates, sandstones with interbedded shales and coal. The shales contain an abundance of insect, fish and plant fossils known from 1877 and onward, while the Princeton Chert was first indented in the 1950's and is known from anatomically preserved plants. There are several notable fossil producing localities in the Princeton & Tulameen basins. Historical collection sites included Nine Mile Creek, Vermilian Bluffs, and Whipsaw Creek, while modern sites include One Mile Creek, Pleasant Valley, Thomas Ranch, and the Princeton Chert. Extent and correlation The Allenby is estimated to have an overall extent of approximately , though actual outcroppings of the formation make up less than 1% of the formation, while other exploratory contact is via boreholes and mines. The half-graben which contains the formation is s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Picea
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerucella Ozeana
''Galerucella'' is a genus of leaf beetles in the family Chrysomelidae described by George Robert Crotch in 1873. It is widely distributed but absent in the Neotropics. Some species feed on waterlilies and are used as biocontrol of introduced, invasive waterlilies. '' Galerucella tenella'' feed on strawberry plants. Adults are 3.5-4.2 mm long, yellowish brown, metathorax and abdomen black; elytra evenly convex. The eggs measure 0.5-0.6 mm, globose, reddish yellow. Larvae 5–6 mm long, yellowish brown with rows of dark transverse bands and warts with setae; legs and head are black. Pupae 3.5–4 mm, black. The immature beetles hibernate under plant remains. In the spring, in the second half of April, at a temperature of 13-14 °C, the beetles leave the wintering grounds and in addition feed: they skeletonize the leaves and gnaw through the sinuous holes. Less often damage the petioles of leaves, inflorescences and flowers. During the extension of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
