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Contacyphon Gozis, 1886 removed from synonymy (Coleoptera: Scirtidae)...
By Zwick P., Klausnitzer B., Ruta R.
Entomologische Blätter und Coleoptera 109: 337-353, 2013
Full title: Contacyphon Gozis, 1886 removed from synonymy (Coleoptera: Scirtidae) to accommodate species so far combined with the invalid name, Cyphon Paykull, 1799.

Abstract

Monophyletische Artengruppen der ehemaligen Gattung Cyphon Paykull, 1799 und Beschreibung von neuen Gattungen (Col., Scirtidae)
By Klausnitzer B.
Entomologische Nachrichten und Berichte 57: 255-262, 2013
Monophyletic species-groups of the former genus Cyphon and description of new genera (Coleoptera, Scirtidae). Three new genera described: Nyholmia [type species: Cyphon collaris (Guérin-Méneville 1843)] to accommodate species of the Cyphon collaris-group from North America & Japan; Exneria [monotypic; type species: Cyphon ruficollis (Say 1825)]; and Yoshitomia [type species: Cyphon beattyi (Pic 1918)] where the nearctic Cyphon spinulosus Klausnitzer 1978 may also belong.

New Coleoptera records from New Brunswick, Canada: Eucinetidae and Scirtidae
By Webster R.P., Sweeney J.D., Demerchant I.
Zookeys 179: 41-53, 2012

Handbook of Zoology. Coleoptera Vol. 3: Morphology and Systematics (Phytophaga)
By Leschen R.A.B., Beutel R.G. (eds)
Walter de Gruyter, Berlin. 687 pp., 2014

Review of the American Corylophidae, Cryptophagidae, Tritomidae and Dermestidae, with Other Studies
By T. L. Casey
New York Entomological Society, 1900
Journal of the New York Entomological Society, 8(2): 51-172, 1900

Full text

The Bothrideridae and Colydiidae of America north of Mexico (Coleoptera: Clavicornia and Heteromera)
By Stephan K.H.
Florida Dept. of Agriculture and Consumer Services, Division of Plant Industry. xii, 65 p., 1989
Occasional Papers of the Florida State Collection of Arthropods, Vol.6
Full text

Further contributions to the Coleoptera fauna of New Brunswick with an addition to the fauna of Nova Scotia, Canada
By Webster R.P., Webster V.L., Alderson C.A., Hughes C.C., Sweeney J.D.
Zookeys 573: 265-338, 2016

Abundance of herbivores on six milkweed species in Illinois.
By Price, P.W. & M.F. Willson.
American Midland Naturalist 101(1): 76–86., 1979
JSTOR

Price, P.W. & M.F. Willson. 1979. Abundance of herbivores on six milkweed species in Illinois. American Midland Naturalist 101(1): 76–86.

Abstract

To aid the understanding of the role of insect herbivores as selective agents in the evolution of their host plants a survey of herbivore abundance and impact was undertaken in central Illinois on the six milkweed species: Asclepias incarnata, A. sullivantii, A. syriaca, A. verticillata, A. amplexicaulis, and A. tuberosa. These species occur in this order on a moisture gradient from wet to dry soil conditions. This survey revealed that 12 species occurred at an abundance of at least one individual per 100 host stems in 1 plot-year on one host species: Oncopeltus fasciatus*, Lygaeus kalmii*, Aphis nerii*, Labidomera clivicollis*, Tetraopes tetrophthalmus*, T. femoratus, T. quinquemaculatus, Rhyssomatus lineaticollis*, Danaus plexippus, Cycnia tenera*, Euchaetias egle and a leafminer. All but L. kalmii are specific to milkweeds in Illinois. Seven of these species, marked with asterisks, were abundant enough to act as major selective forces on the life history patterns of the milkweed species, populations and clones concerned.

 
 
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