Treminio S, Veroy K, Orozco J (2025) First record of Cheilomenes sexmaculata (Fabricius, 1781) (Coleoptera, Coccinellidae) from Honduras. Check List 21(3): 539-543.
Abstract
Cheilomenes sexmaculata (Fabricius, 1781) (Coleoptera, Coccinellidae), a ladybug of Asian origin, has been recently reported in the Americas. Here, we record it for the first time in Honduras. In 2023, 26 specimens were collected on corn (Zea mays L. (Poaceae)), sorghum (Sorghum bicolor (L.) (Poaceae)), and sunflower (Helianthus annuus L. (Asteraceae)) in Francisco Morazán. The series included five color types: quadriplagiata group types D‑1, F‑2, and I, and diversijunata group types L‑2 and N. Diagnosis, photographs of the adults, and the male genitalia are presented to aid in the identification.
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.
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.
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.
