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Subfamily Coccinellinae

 
 
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The Coccinellidae (Ladybird Beetles) of Minnesota
By Stehr, W.C. 1930.
Univ. Minn. Agr. Expt. Sta., St.Paul, 1930
Stehr, W.C. 1930. The Coccinellidae (Ladybird Beetles) of Minnesota. Univ. Minn. Agr. Expt. Sta. Tech. Bull. 75. 54 pp.

Coleomegilla maculata (Coleoptera: Coccinellidae) is a species complex.
By Krafsur, E.S. and J.J. Obrycki.
Annals of the Entomological Society of America 93(5): 1156-1161., 2000
BioOne

Krafsur, E.S. and J.J. Obrycki. 2000. Coleomegilla maculata (Coleoptera: Coccinellidae) is a species complex. Annals of the Entomological Society of America 93(5): 1156-1161.

Abstract

Coleomegilla maculata De Geer is an abundant, widely distributed, New World polyphagous lady beetle. High levels of variation at 14 polymorphic allozyme loci were used to examine breeding structure of populations from New England, Iowa, south Texas, and Honduras. Analysis of variance of gene frequencies and F-statistics showed high levels of gene flow within each region and between the Texan and northern United States populations, but negligible rates of gene flow between these and the Honduran populations.

Reproductive incompatibility between two subspecies of Coleomegilla maculata (Coleoptera: Coccinellidae).
By Perez, O.G. and M.A. Hoy.
Florida Entomologist 85(1): 203-207., 2002
Link to full text

Perez, O.G. and M.A. Hoy. 2002. Reproductive incompatibility between two subspecies of Coleomegilla maculata (Coleoptera: Coccinellidae). Florida Entomologist 85(1): 203-207.

Abstract

There is interest in introducing the midwestern subspecies of Coleomegilla maculata (DeGeer), C. m. lengi Timberlake, as a biological control agent for augmentation programs in Florida. The Division of Plant Industry (DPI) of the Florida Department of Agriculture and Consumer Services has prohibited the release of [i]C.

Predicted impact of an exotic generalist predator on monarch butterfly populations: A quantitative risk assessment.
By Koch, R.L., R.C. Venette, and W.D. Hutchison.
Biological Invasions 8(5): 1179-1193., 2006
Springer

Koch, R.L., R.C. Venette, and W.D. Hutchison. 2006. Predicted impact of an exotic generalist predator on monarch butterfly (Lepidoptera: Nymphalidae) populations: A quantitative risk assessment. Biological Invasions 8(5): 1179-1193.

Abstract
The multicolored Asian lady beetle, Harmonia axyridis (Pallas), was recently identified as a potential hazard to monarch butterflies, Danaus plexippus (L.). A quantitative risk assessment for the potential impact of H. axyridis on D. plexippus in Minnesota corn and soybean fields was developed using risk analysis software. This assessment considered a potential worst-case scenario for the impact of H. axyridis on D. plexippus. Habitat-specific recruitment of D. plexippus eggs was determined empirically. Subsequently, simulated abundance of D. plexippus in each habitat was reduced by two classes of stage-specific mortality: predation by H. axyridis and causes other than H. axyridis. Predation was modeled as a function of D. plexippus exposure to H. axyridis, and predation rate of D. plexippus by H. axyridis. Exposure and subsequent risk varied considerably by habitat, with a low risk of H. axyridis adversely affecting D. plexippus populations developing in corn fields, but a moderate to high risk in soybean fields. Predicted rates of D. plexippus mortality attributable to H. axyridis were greater in soybean compared to corn fields, possibly due to the numerical response of H. axyridis to soybean aphid, Aphis glycines Matsumura. This study demonstrates that H. axyridis has the potential to have a strong adverse impact on D. plexippus populations. However, the likelihood of occurrence for this worst-case scenario remains uncertain. To evaluate the landscape-level risk of H. axyridis impacting D. plexippus, further data on recruitment of D. plexippus in other habitats and exposure estimates specific to additional habitats are needed.

Influence of alternate prey on predation of monarch butterfly larvae by the multicolored Asian lady beetle (Coccinellidae).
By Koch, R.L., R.C. Venette, and W.D. Hutchison.
Environmental Entomology 34(2): 410-416., 2005
BioOne

Koch, R.L., R.C. Venette, and W.D. Hutchison. 2005. Influence of alternate prey on predation of monarch butterfly (Lepidoptera: Nymphalidae) larvae by the multicolored Asian lady beetle (Coleoptera: Coccinellidae). Environmental Entomology 34(2): 410-416.

Abstract

An invasive, exotic coccinellid, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), was recently identified as a potential hazard to immature monarch butterflies, Danaus plexippus L. (Lepidoptera: Nymphalidae). To further evaluate the risk of H. axyridis impacting D. plexippus, we evaluated the influence of an alternate prey, Aphis nerii Boyer de Fonscolombe (Homoptera: Aphididae), on the predation rate of H. axyridis on D. plexippus larvae. When first-instar D. plexippus were placed in petri dish arenas with third-instar H. axyridis and varying densities of A. nerii, D. plexippus survival after 24 h increased significantly from 0% with 0 A. nerii present to 73% with 30 A. nerii present. In predation studies conducted in field cages, survival of D. plexippus larvae decreased with increasing densities of H. axyridis larvae and tended to increase with increasing A. nerii densities. These studies indicate that H. axyridis will feed on D. plexippus larvae in the presence of A. nerii, but that the presence of A. nerii lessens the severity of predation on D. plexippus.

Harmonia axyridis (Pallas), the third species of the genus to be found in the United States (Coleoptera: Coccinellidae).
By Chapin, J.B., and V.A. Brou.
Proceedings of the Entomological Society of Washington 93(3): 630-635., 1991
Full PDF

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.
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First published report of the Harmonia axyridis in N. Amer.

Revision of the genus Mulsantina Weise (Coleoptera: Coccinellidae).
By Chapin, J.B.
Annals of the Entomological Society of America 78(3): 348-368., 1985
Chapin, J.B. 1985. Revision of the genus Mulsantina Weise (Coleoptera: Coccinellidae). Annals of the Entomological Society of America 78(3): 348-368.

ABSTRACT:
Nine species in the genus Mulsantina Weise are recognized including two new species: one from Mexico (mexicana sp. nov.) and one from Guatemala and Mexico (curva sp. nov.).
Harmonia quinquelineata Mulsant and Coccinella albopicta Gorham are transferred to Mulsantina, and the latter and Cleis concolor Crotch are placed as synonyms of M. lynx (Mulsant).
Mulsantina cyathigera (Gorham) and M. quinquelineata (Mulsant) are reported in the United States for the first time.

A revision of the forms of Coccinella L. occurring in America North of Mexico (Coleoptera: Coccinellidae)
By W. J. Brown
The Canadian Entomologist, Vol. 94, No. 8, pp. 785-808, 1962

 
 
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