The adult adzuki bean borer has a yellowish-brown forewing with jagged lines and variable darker shading, with a wingspan that ranges from 20 to 32 mm.

[3] They are typically found in corn fields, gardens, and commercial crop plantations and they are usually active from April to October.

Japan has a significantly large concentration of moths, and the bulk of studies performed there are conducted on the adzuki bean borer.

The moth thrives in the habitats and the natural resources found in both the western and eastern Palearctic regions.

These bacteria are maternally transmitted and their presence can cause many reproductive abnormalities in arthropods such as the adzuki bean borer.

The adzuki bean borer generates these pulses and flies erratically to confuse and escape predation, specifically from bats.

[9] Multiple studies have shown that there is a significant amount of sex ratio distortion that occurs in O. scapulalis.

The physiological reason as to why these traits induce a female biased sex ratio is unknown.

It is suggested that the trait appearance is due to feminization, male killing at the larval stage, or meiotic drive.

There is an unusually low level of divergence between the adzuki bean borer and the other seven Ostrinia species.

A recent study showed that there are major QTLs (quantitative trait loci) that are associated with the mating isolation between O. nubilalis and O. scapulalis.

[11] Additional studies are required to target other aspects of the moths' genetic architectures which may explain their reproductive isolation.

This cost includes activities such as the production of sperm, territorial guarding, and parental care.

[14] The male adzuki bean borer provides nuptial gifts to the female in the form of proteins, carbohydrates, minerals, and sugars that are included in the spermatophore.

This results in the majority of parental care being provided by the female of the species since male desertion is common.

The tympanum is a thin piece of transparent tissue that vibrates in response to ultrasonic sound.

This suggests that the ears of these moths have evolved to fend off insectivores including bats that emit ultrasonic sounds.

[19] Diapause is considered as a delay in animal development due to multiple environmental factors.

The moth's main host plant in which they diapause is the mugwort although they also are found in the maize and hop stems.