Hyalessa maculaticollis

Oncotympana maculaticollisHyalessa fuscata Hyalessa maculaticollis is a species of cicada found in Northeast Asia in the order Hemiptera.

It is known as minminzemi (ミンミンゼミ, literally, minmin cicada) because of its well-known male song that sounds like 'mi—n, minminminminmi...' (Japanese: ミーンミンミンミンミンミー...).

Hyalessa maculaticollis is found in China, Japan, the Korean Peninsula and maritime areas of Russia.

Their distribution is limited by the cold northern climates and have forced them to migrate to middle and southern areas of Japan.

However there are some isolated habitats that can presumably survive in Hokkaido's cold climates due to the region's prevalence of high geothermal heat such as hot springs and volcanic activity.

These areas include Jozankei Onsen (Sapporo City) and the Wakoto Peninsula in Eastern Hokkaido.

In other countries of the Asian continent, it inhabits northern China and Korea, and is found mostly in urban areas.

There is a common myth that  the mikadominmin type of cicada has acquired heat resistance despite no black pigment on its body.

Tobishima has a particularly high probability of occurrence of mikadominmin (more than 10% of the total), but the summer temperature is low on all islands and it is easy to spend.

There is such a period of simultaneous ringing suggests that one is not in a situation of avoiding or driving the other, that is, there is no clear segregation between H. maculaticollis and C. facialis.

[8] The male of H. maculaticollis, a summer tradition, often squeals in the morning, and the song is loud and clearly audible to the human ear.

The song of Hyalessa maculaticollis is used as sound effects in many East Asian medias to depict the summer season.

This trend has become particularly noticeable since 2010, and in recent years, as the earliest H. maculaticollis in Japan occurs in Kumagaya City, Saitama Prefecture around mid-July.

Here, the conditions for the soil to dry include (1) low rainfall, (2) high sunshine, (3) well-drained geology such as andosols, and (4) slopes.

It is considered that the first song of H. maculaticollis is greatly affected by the amount of precipitation in summer, that is, the rainy season (monsoon).

In western Japan, where there is a lot of rainfall in the summer and the soil is clayey and has good water retention which limits the H. maculaticollis to inhabit those areas.

Among them, Yamagata, Nagano, Kofu, Kumagaya, etc., where precipitation is low, have the earliest first ringing even when viewed nationwide.

In addition, although biological season observations have not been made, it also applies to the fact that H. maculaticollis begins to sing during the late summer in various parts of western Japan such as Kyoto.

It is possible that the natural environment of these areas has changed due to increased daily and hourly precipitation, and the population of H. maculaticollis has decreased.

[6] First song (of the year) of Minminzemi Normal value (excerpt from the website of the Japan Meteorological Agency) Studies on sound initiation and termination have been conducted in the Korean population.

Hyalessa maculaticollis in Mount Yōrō, Gifu prefecture, Japan
H. maculaticollis in urban area. Seoul , South Korea