CONTRIBUTIONS TO THE KNOWLEDGE OF <IT>OLLA</IT> CASEY (COLEOPTERA: COCCINELLIDAE: COCCINELLINI): NEW SPECIES FROM THE GALAPAGOS ISLANDS, UPDATES ON THE DISTRIBUTION OF <IT>O. V-NIGRUM</IT> (MULSANT)

Proceedings of the Entomological Society of Washington: Vol. 106, No. 3, pp. 619–626.

CONTRIBUTIONS TO THE KNOWLEDGE OF OLLA CASEY (COLEOPTERA: COCCINELLIDAE: COCCINELLINI): NEW SPECIES FROM THE GALAPAGOS ISLANDS, UPDATES ON THE DISTRIBUTION OF O. V-NIGRUM (MULSANT)

Natalia J. Vandenberg^a

^aSystematic Entomology Laboratory, PSI, Agricultural Research Service, U.S. Department of Agriculture, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, MRC 168, Washington, DC 20013-7012, U.S.A. (E-mail: mailto:nvandenb@%20sel.barc.usda.gov)

ABSTRACT

Olla lacrimosa, n. sp., is described from Isabela Island of the Galapagos Archipelago. Earlier, the single known example of this species was mistaken for Olla hageni Vandenberg, a closely related species which occurs on the neighboring island of Santa Cruz. A diagnosis, habitus drawing, and key details of the anatomy and morphology of the new species are provided and compared to related members of the genus. The habits and distribution of the genus are reviewed, and updated distributional data are provided for O. v-nigrum Mulsant, a widespread species of temperate and tropical America which has been released in a number of countries for biological control purposes.

Keywords: Olla, Coccinellini, new species, taxonomy, biological control, distribution, Galapagos.