Thosea medialis Holloway sp. n.
♂♂ 13-15mm,♀18mm. The facies is as in rotundata but with the dark diffuse medial band from the dorsum to the discal spot more intense. In the male genitalia the aedeagus lacks a small apical lobe, the furca arms are slender, longer than in borneensis and gently, evenly curved. The valve apex is simply acute and relatively symmetrical, slightly constricted just distal to the sacculus. The female tentatively assigned to the species has the eighth segment well developed as in borneensis.
Holotype ♂
Lebong Tandai, W. SUMATRA, 1921 (C.J. Brooks) BM limacodid slide 209.
Paratype
3 ♂♂ as holotype.
Geographical range
Sumatra, Borneo, Peninsular Malaysia.
Habitat preference
Bornean specimens have been taken infrequently in a range of lowland forest types, including heath forest.
Genitalia:
