Synonyms and other taxonomic changes
Pyrrhalta luteola
Explanation of Names
Xanthogaleruca luteola (Müller 1766)
luteola 'yellowish'
Range
Native to w. Palaearctic
(1), adventive in our area (CA-FL-NS-BC)
(2)(3)Life Cycle
Overwinter as adults in sheltered dry places. Hibernation can begin in August; eggs are laid in late May or early June, larve begin to hatch in about a week and feed on the undersides of leaves for 2-3 weeks, then crawl down and pupate in bark crevices. There may be 1―2 generations with a partial 3rd generation per year. The first generation is the most injurious.
(4)Remarks
first detected in Baltimore, MD in the late 1830s
(2)(3)
Considered a pest of elms
(2)
See Also
Trirhabda: in
Xanthogaleruca antennomere 3 is longer than or subequal to antennomere 4, shorter in
Trirhabda(5)
In addition to the occipital spot, X. luteola usually has a spot just above the antennae, rarely present in Trirhabda
X. luteola is usually found near places where elm trees have been planted. Trirhabda spp. usually occur in less disturbed areas.