Coleoptera leaf beetles

The aggregation pheromone of the leaf beetle Diorhabda elongata Brulle (Coleoptera Chrysomelidae) have been identified as two compounds namely, (2E , 42 )-2,4-heptadienal and (2E , 42 )-2,4-heptadien-l-ol produced exclusively by males. They were also detected in trace quantities from females but the levels in males were 8—40 times higher. ... 

Meiners, T. and Hilker, M. (1997). Host location in Oomyzus gallerucae (Hymenoptera Eulophidae), an egg parasitoid of the elm leaf beetle Xanthogaleruca luteola (Coleoptera Chrysomelidae). Oecologia 112 87-93. 

Coleoptera. A recent work on chrysomelidae (Peterson et al., 2007) evaluated the evolution of sexual isolation between two leaf beetles, Chrysochus cobaltinus and C. auratus, in a hybrid zone in Washington state (USA). By painting beetle cadavers with various cuticular extracts, the authors demonstrated a strong male preference for conspecific females according to species and sexual chemical specificity of their respective cuticular hydrocarbon profiles. This male mate choice reinforced sexual isolation. 

NIELSEN, J.K., Host plant discrimination within Cruciferae Feeding responses of four leaf beetles (Coleoptera Chrysomelidae) to glucosinolates, cucurbitacins and cardenolides., Entomol. Exp. Appl., 1978, 24, 41-54. 

Oreina leaf beetles (Chrysomelidae, Coleoptera) synthesize cardenolides as part of their defensive secretions that are released from specialized exocrine glands.139,140 Some Oreina beetles sequester and secrete PAs, which are taken directly as N-oxides from their Asteraceae food plants.59 It is assumed that PA acquisition evolved in species that already possessed the ability to synthesize and store cardenolides for efficient defense.14 O. cacaliae is the only species in this family that lost the ability to synthesize cardenolides autogenously. Instead the plant-derived PA A-oxides are stored in the body (primarily in the hemolymph) and... 

PASTEELS, J.M., DOBLER, S., ROWELL-RAHIER, M., EHMKE, A., HARTMANN, T., Distribution of autogenous and host-derived chemical defenses in Oreina leaf beetles (Coleoptera Chrysomelidae). J. Chem. Ecol., 1995, 21, 1163-1179. 

Leptinotarsa behrensi Harold (Coleoptera Chrysomelidae). Hypotheses on the origin and evolution of leaf beetles toxins. Chemoecology, 2001,11,107-112. 

Obopile, M. R.B. Hammond. Effects of delayed harvest on soybean seed quality following bean leaf beetle (Coleoptera Chrysomelidae) pod injury. J.Kansas Entomol. Soc. 2001, 74, 40—48. 

Pasteels, J. M., M. Rowell-Rahier, J. C. Braekman, D. Daloze, and S. Duffey, Evolution of exocrine chemical defense in leaf-beetles (Coleoptera Chrysomelidae), Experientia, 24, 3299-3302 (1989). 

Optimized synthesis of the male-produced aggregation pheromone of the cereal leaf beetle, Oulema melanopus (Coleoptera Chrysomelidae). 

Dinotefuran (4) exhibits activity against numerous insects such as Hemiptera, Lepidoptera, Coleoptera, Diptera, Dictyoptera and Thysanoptera, as well as against some other important pests (e.g., stinkbugs, fruit moths, flea beetles, leaf miners)... 

Wilson, I. M. et al.. Green leaf volatiles as antiaggiegants for the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera Scolytidae). J. Chem Ecol. 22 1861-1875, 1996. 

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