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The Coccinellidae of Louisiana (Insecta: Coleoptera).
By Chapin, J.B.
Louisiana Agricultural Experiment Station Bulletin 682: 2-87., 1974
Cite: 1016125
Full PDF - I have inserted, as page 2, an undated taxonomic addendum compiled by Chapin.

Chapin, J.B. 1974. The Coccinellidae of Louisiana (Insecta: Coleoptera). Louisiana Agricultural Experiment Station Bulletin 682: 2-87.

Dr. Joan Beggs Chapin (1929-2014)

ABSTRACT:
A taxonomic study of the Coccinellidae of Louisiana was undertaken in 1965 to identify the species occurring in the state. Keys and descriptions are provided for the 6 subfamilies, 11 tribes, 27 genera, and 71 species recorded as occurring in the state. Of the species listed, 38 are reported as new. Distribution records by parish and dates of seasonal occurrences are given.

This publication is heavily cited in Gordon (1985) The Coccinellidae (Coleoptera) of America North of Mexico. (1)

Derived from:

Chapin, J.B. 1971. The Coccinellidae of Louisiana (Insecta: Coleoptera). Doctoral Dissertation. Louisiana State University, Baton Rouge. xiv + 214 pp.

(Joan's M.Sc. was on a pentatomid: Chapin, J.B. 1959. The biology of Euschistus obscurus (Palisot de Beauvois). Master of Science Thesis, Louisiana State University, Baton Rouge, 49 pp.)

Joan Chapin described seven new species of coccinellids:


Scymnus louisianae J. Chapin, 1973
PARATYPE

Scymnus secures J. Chapin, 1973
Scymnus apicanus J. Chapin, 1973
Scymnus paracanus J. Chapin, 1973
Mulsantina luteodorsa J. Chapin, 1973
Mulsantina curva J. Chapin, 1985
Mulsantina mexicana J. Chapin, 1985

The later two spp. don't occur n. of Mexico.

Other JBC coccinellid publications:

Chapin, J.B. 1973. New species of lady beetles in the genera Scymnus and Mulsantina (Coleoptera: Coccinellidae). Annals of the Entomological Society of America 66: 1071-1073. (2)
Chapin, J.B. 1985. Revision of the genus Mulsantina Weise (Coleoptera: Coccinellidae). Annals of the Entomological Society of America 78(3): 348-368. (3)
Chapin, J.B., and V.A. Brou. 1991. Harmonia axyridis (Pallas), the third species of the genus to be found in the United States (Coleoptera: Coccinellidae). Proceedings of the Entomological Society of Washington 93(3): 630-635.
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.
Rouse, E.P., and J.B. Chapin. 1980. Checklist of the lady beetles (Coccinellidae) of Arkansas. Arkansas Academy of Science, Arkansas Biota Survey Checklist 26. 2 pages.

Joan B. Chapin (1929-2014) not to be confused with Edward A. Chapin (1894-1969), both of whom worked on Coccinellidae.