Tactusa sine Fibiger, 2010

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119 : 16

Tactusa sine Fibiger , new species

( Plate 1 , figure 3)

Material examined. Holotype: male, N Vietnam, Dat Lat , Institute of Biology, 10.xii.1994, leg. S. Mahunga, G. Sziraki, & L. Zombori, coll. M. Fibiger, to be deposited in ZMUC.

Taxonomic notes. T. sine is a member of the T. sumatrensis species-group, which has a blackish brown quadrangular patch between the antemedial and postmedial lines.

Diagnosis. Imago (external). Wingspan: 13 mm.

Forewing: ground colour brown, with dark brown medial and costa patch of basal area (apo.).

Crosslines: all crosslines present, except basal line, dark brown, terminal line indicated by black interneural dots.

Reniform stigma: present but weakly marked, basally outlined by black, distally by brown (apo.).

Hindwing: dark grey, with indistinct discal spot.

Underside: unicolorous grey.

Male and Female genitalia. Unknown.

Differential diagnosis. T. sine differs from other members of group in darker ground colour and black and brown outlined reniform stigma.

Figures

PLATE 1. Figures 1–7. Tactusa species, adults. 1, T. major, female holotype, Thailand N, Chiang Mai; 2, T. rima, male holotype, Vietnam N, Vinh Phuc; 3, T. sine, male holotype, Vietnam N, Da Lat; 4, T. sumatrensis, male holotype, Indonesia, North Sumatra; 5, T. schnacki, male holotype, India NE, Assam; 6, T. parasumatrensis, male holotype, Indonesia, North Sumatra; 7, T. trigonifera Hampson, 1898), male holotype, India NE, Assam.