[2] They can be identified by their green appearance with thin, greenish, transparent wings[2] and are heavily distributed in China, Taiwan, Japan, India and Malaya.

Similar to majority of other cicadas, their wings are translucent and glassy (hyaline) without any darkening marks or tinge (infuscation).

[2] Cicadas of the genus Chremistica are placed in the tribe Tibicenini along with Tibicen Latreille, Cryptotympana Stål, Anapsaltoda Ashton and Neopsaltoda Distant.

According to entomologist Hayashi (1987), the genera under the tribe Tibicenini share the same sound-production characteristics, external morphology and male genitalia, allowing them to be classified under the same monophyletic group.

This is also consistent with their wide variety of use (as food source, habitat, exuviation process) in host plants, as they are less choosy as compared to other cicada species.

It is suggested that nymphs with a larger body size have better water content thus allowing them to climb higher and longer with the advantage of reduced transpiration due to their smaller surface area to volume ratio.

They found out that there are a lesser number of cicada species in the urban environment, which correlates to the higher levels of anthropogenic noise, as compared to the findings from the mountain site.

It is reported that there are low spectral overlap in both environments, thus partitioning the frequency domain are used by the cicadas to reduce the masking interference.

[7] In another study, C. ochracea was collected to measure mercury levels in terrestrial subtropical forested systems (air, soil and biomass) in Southwest China.

This can pose ecological threat to insects, the habitat that they are living in and their foraging habits since terrestrial forests are identified as large sinks of atmospheric lead.

Similar to the mercury level in soil study, cicada larvae are collected and sampled within Tieshanping Forest Park and a protected area near Chongqing City, Southwest China to measure the bio-accumulation of lead concentration as they can live underground from four to up to five years long before appearing above ground and undergo their last stage of molting.

It is worth noting that Chongqing is one of the important industrial areas in Southwest China which uses a large amount of fossil fuels.

The research however, justified that there are concerning elevated levels of lead in dung beetles, which can negatively affect predators in food chains.

[16] This case is also known as biomagnification, which occurs when toxicity levels in a tolerant organism's tissue increase successively in a food chain.