''Marumba dyras'', the dull swirled hawkmoth, is a species of hawk moth described by Francis Walker in 1856. It is found in South-east and South Asia.

Description

The wingspan is 90–125 mm. The body is pale brown. There is a dark line running from the head to the end of the abdomen. Forewing is with a sub-basal line, three antemedial lines converging towards inner margin, two oblique slightly bent post-medial lines, the outer line is obsolescent. There is another post-medial line, curved from the costa to vein 2, then recurved upwards and inwards and enclosing a red-brown spot surrounded by an indistinct line. The two curved sub-marginal lines can be seen. The hindwings are reddish brown with two red-brown spots on them. The ventral surface of the forewings with only lines on the outer half present. Ventral surface of hindwing with two post-medial straight lines and two sub-marginal curved lines. The caterpillar is blue green with short white granular spines. There are lateral oblique streaks on the 5th to 10th somites. A black-ringed white eyespot can be found on the 4th somite. The horn is yellow. The pupa is dark red brown. The spiracles and cremaster are black. Marumba dyras dyras MHNT CUT 2010 0 192 Ban Kheum Laos male dorsal.jpg, ''Marumba dyras dyras''
male dorsal Marumba dyras dyras MHNT CUT 2010 0 192 Ban Kheum Laos male ventral.jpg, ''Marumba dyras dyras''
male ventral

Host plants

The larvae feed on various deciduous trees. They can be found in '' Byttneria aspera'', ''

Firmiana simplex ''Firmiana simplex'', commonly known as the Chinese parasol tree, Chinese parasoltree, or wutong (), is an ornamental plant of tree size assigned to the family Malvaceae that was formerly in the family Sterculiaceae in the order Malvales, and i ...

'', '' Microcos paniculata'', '' Pterospermum heterophyllum'', ''

Sterculia lanceolata ''Sterculia lanceolata'' is a tree species, belonging to the genus '' Sterculia'' and the family Malvaceae (previously the Sterculiaceae, now relegated to a subfamily). The species can be found in southern China (including Hainan island) and V ...

'', ''

Hibiscus mutabilis ''Hibiscus mutabilis'', also known as the Confederate rose, Dixie rosemallow, cotton rose or cotton rosemallow, is a plant long cultivated for its showy flowers. Originally native to southern China and Taiwan, it is now found on all continents e ...

'', '' Microcos paniculata''. In India, ''M. d. dyras'' has been recorded on ''

Bridelia ''Bridelia'' is a plant genus of the family Phyllanthaceae first described as a genus in 1806.Sapindus ''Sapindus'' is a genus of about five to twelve species of shrubs and small trees in the lychee family, Sapindaceae, native to warm temperate to tropical regions of the world. The genus includes both deciduous and evergreen species. Members of ...

'' and ''

Schleichera ''Schleichera'' is a monotypic genus of plants in the soapberry family, Sapindaceae. There is only one species, ''Schleichera oleosa'', a tree that occurs in the Indian Subcontinent and Southeast Asia. Species ''Schleichera oleosa'', kusum tr ...

''. In Laos and Thailand, caterpillars recorded from ''

Bombax anceps ''Bombax anceps'' is a tree species now in the Malvaceae that was described by Jean Baptiste Louis Pierre from its range in Indochina. The subspecies ''B. a. cambodiense'' has been reverted to species ''Bombax cambodiense'' Pierre. Description ...

'', '' Hibiscus rosa-sinensis'' and '' Microcos paniculata'' plants.

Subspecies

*''Marumba dyras dyras'' (from northwestern India and Sri Lanka, east through Nepal, Myanmar, the Andaman and Nicobar Islands, southern China, Thailand, Vietnam, Peninsular Malaysia and Taiwan) *''Marumba dyras javanica'' (Butler, 1875) (Java, Sumatra) *''Marumba dyras tenimberi'' Clark, 1935 (Tenimber Island)

References

Marumba Moths described in 1856 Taxa named by Francis Walker (entomologist) {{Smerinthini-stub