''Helcystogramma bicuneum'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

in the family Gelechiidae. It was described by Edward Meyrick in 1911. It is known from north-eastern

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

and

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

(

Anhui Anhui , (; formerly romanized as Anhwei) is a landlocked province of the People's Republic of China, part of the East China region. Its provincial capital and largest city is Hefei. The province is located across the basins of the Yangtze River ...

Guizhou Guizhou (; formerly Kweichow) is a landlocked province in the southwest region of the People's Republic of China. Its capital and largest city is Guiyang, in the center of the province. Guizhou borders the autonomous region of Guangxi to t ...

Hainan Hainan (, ; ) is the smallest and southernmost province of the People's Republic of China (PRC), consisting of various islands in the South China Sea. , the largest and most populous island in China,The island of Taiwan, which is slightly l ...

Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...

Hubei Hubei (; ; alternately Hupeh) is a landlocked province of the People's Republic of China, and is part of the Central China region. The name of the province means "north of the lake", referring to its position north of Dongting Lake. The prov ...

Hunan Hunan (, ; ) is a landlocked province of the People's Republic of China, part of the South Central China region. Located in the middle reaches of the Yangtze watershed, it borders the province-level divisions of Hubei to the north, Jiangxi to ...

Xizang The Tibet Autonomous Region or Xizang Autonomous Region, often shortened to Tibet or Xizang, is a province-level autonomous region of the People's Republic of China in Southwest China. It was overlayed on the traditional Tibetan regions of Ü ...

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

). The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 9–10 mm. The forewings are blackish fuscous with a somewhat arched yellow-ochreous subcostal streak from the base to the disc beyond the middle, edged beneath by a shorter leaden-grey streak not reaching either extremity. There are two oblique white streaks from the costa anteriorly running into the subcostal streak. There is an incurved yellow-ochreous line from one-third of the dorsum to before the apex of the leaden-grey streak, and a fine white S-shaped line from beyond the middle of dorsum to its apex, as well as an oblique leaden-grey line from the middle of the costa to beyond the apex of the subcostal streak, nearly obsolete at the origin, continued as a fine white S-shaped line parallel to the preceding one to the dorsum, between these parallel lines is a yellow-ochreous dot. There is also an oblique white striga from the costa beyond the middle, becoming yellow ochreous beneath, and two short direct white strigulae from the costa posteriorly. A straight leaden-metallic streak runs from the costa beyond these to the tornus, margined anteriorly below the middle by two wedge-shaped black marks surrounded with yellow-ochreous suffusion, and posteriorly above the middle by a small black spot reaching the termen. The remainder of the terminal area is yellow ochreous. The hindwings are grey whitish or whitish grey in males, darker posteriorly. The hindwings of the females are rather dark grey.''Journal of the Bombay Natural History Society''. 20 (3): 731.

References

Moths described in 1911 bicuneum Moths of Asia {{Helcystogramma-stub