''Griseosphinx preechari'' is a moth of the family Sphingidae. It is known from southern

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 ...

to northern, western and central Thailand, and into

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

. The length of the forewings is 24–30 mm for males and 25–20 mm for females. It is similar to ''

Pseudodolbina ''Pseudodolbina'' is a genus of moths in the family Sphingidae. The genus was erected by Walter Rothschild Lionel Walter Rothschild, 2nd Baron Rothschild, Baron de Rothschild, (8 February 1868 – 27 August 1937) was a British banker, p ...

'' species but distinguishable by the presence of the field of microtrichia on the inner surface of the labial palp segment one and the choerocampine pilifer-palp hearing organ. The antennae are slightly clubbed, long, exceeding the apex of the forewing cell. The scales of head and body are narrow, semi-erect, giving a hairy appearance. The hindwing upperside is uniform brownish-grey. Adults are on wing from April to October in Thailand.

References

Rhagastis Moths described in 1990 {{Macroglossini-stub