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Species Propylea quatuordecimpunctata - Fourteen-spotted Lady Beetle

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Notes on Texas Coccinellidae.
By Gaines, J.C.
Bulletin of the Brooklyn Entomological Society 28(5): 211-215., 1933
Full Text

Gaines, J.C. 1933. Notes on Texas Coccinellidae. Bulletin of the Brooklyn Entomological Society 28(5): 211-215.

"The following is a list of Coccinellids collected principally by the writer in the vicinity of College Station and in Hidalgo county, Texas, during 1930, 1931, and 1932. Notes, as far as possible, are given on the habitat, host, and the date that each species was collected. Of the 64 species and varieties listed herein, 19 have not been heretofore reported from this state. The writer is indebted to Dr. E. A. Chapin for determining some of the species of Hyperaspis and Scymnus."

Survey of lady beetles (Coleoptera: Coccinellidae) found on Texas high plains cotton, alfalfa and weeds.
By Carroll, S.C., M.N. Parajulee, and M.D. Arnold.
Proceedings of the World Cotton Conference (September 10–14, 2007), Lubbock, TX., 2007
Full PDF - Manuscript

A study was conducted during the February to November periods of 2004 and 2005 to determine the seasonal presence and reproduction of lady beetle species on cotton, alfalfa, plus over 20 prevalent Texas High Plains weed species. Over the 2-year study period, a total of 221,209 plant sweeps yielded 27,058 lady beetle adults and 3,936 larvae.

The adult specimens represented a total of six different species with the convergent lady beetle, Hippodamia convergens Guerin-Meneville, easily representing over 80% of the overall population.

Determinate evolution in the color-pattern of the lady-beetles.
By Johnson, R.H.
Carnegie Institution of Washington, Publication No. 122. iv + 104 pp., 1910
Full Text

All of the American coccinellids which could be obtained in numbers and which showed a variable color-pattern were studied, viz, Hippodamini, Coccinellae, and Epilachnini, divisions employed by Casey (1899).

Johnson, R.H. 1910. Determinate evolution in the color-pattern of the lady-beetles. Carnegie Institution of Washington, Publication No. 122. iv + 104 pp.

A checklist of the Coccinellidae of Arkansas.
By Rouse, E.P., and J.B. Chapin.
Proceedings of the Arkansas Academy of Science 30: 76-77., 1976
Full PDF

Rouse, E.P., and J.B. Chapin. 1976. A checklist of the Coccinellidae of Arkansas. Proceedings of the Arkansas Academy of Science 30: 76-77.

The list consists of 49 species and includes distribution by county and ecological information if known.

See also:

Rouse, E.P. and J.B. Chapin. 1980. Checklist of the Lady Beetles (Coccinellidae) of Arkansas. Arkansas Academy of Science, Arkansas Biota Survey Checklist No. 26. 2 pp.

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Adventive lady beetles (Coleoptera: Coccinellidae) in the Canadian Maritime Provinces...
By Hoebeke E.R., Wheeler A.G.
Entomological News 107: 281-290, 1996
Full title: Adventive lady beetles (Coleoptera: Coccinellidae) in the Canadian Maritime Provinces, with new eastern US records of Harmonia quadripunctata

Full text

The Coccinellidae (Coleoptera) of the Maritime Provinces of Canada: new records, biogeographic notes, and conservation concerns
By Majka C.G., McCorquodale D.B.
Zootaxa 1154: 49–68, 2006

Ladybird beetles (Coleoptera: Coccinellidae) recently immigrant to Florida
By Thomas M.C., Blanchard O.J.
Florida Dept. Agric. & Consumer Services Division of Plant Industry, Entomology Circular Number 428. 5 pp., 2013

An annotated checklist of the lady beetles (Coleoptera: Coccinellidae) of Iowa, U.S.A.
By Hesler L.S.
Insecta Mundi 0091: 1-10, 2009

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