New York Natural Heritage Program
Transverse Lady Beetle
Coccinella transversoguttata Falderman, 1835
Insects

Threats [-]
While it is difficult to prove, it appears this species has been displaced by nonnative lady beetles via competition for resources, depredation, and possible inbreeding. Agricultural land has been declining in New York since the 1880s resulting is less suitable habitat for many lady beetle species. Between 1940 and 1997, there was a 57% decline in farmed land in New York (Harmon et al. 2007). Lady beetles appear to be sensitive to pesticide use (Stephens and Losey 2003).

Conservation Strategies and Management Practices [-]
Preservation of farmland would maintain or increase suitable open habitat. Pesticide use should be avoided when possible. If pesticide use cannot be avoided: use chemicals that target only the pest, treat only infested areas, and select chemicals that do not persist.

Research Needs [-]
Additional research is needed to determine the effects of competition with other coccinellids. Further studies on lab rearing and reintroduction are needed.