Tactusa dohertyi Fibiger, 2010

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119 : 27

Tactusa dohertyi Fibiger , new species

( Plate 3 , figure 3)

Material examined. Holotype: male, Indonesia, Java, Arjuno, leg. W. Doherty, coll. BMNH.

Taxonomic notes. T. dohertyi is a member of the nieukerkeni species-group, which has a blackish triangular or quadrangular patch between the antemedial and postmedial lines.

Diagnosis. Imago (external). Wingspan: 10 mm.

Forewing: ground colour light brown, suffused with brown scales, with acutely-angled blackish patch in upper medial area and dark brown subterminal area; a blackish patch between reniform stigma and fringes (apo.) and five black dots, including that by apex, between medial quadrangular patch and apex (apo.).

Crosslines: only terminal line marked by interneural black spots.

Reniform stigma: white, inwardly outlined black.

Hindwing: dark grey, with very faint discal spot.

Underside: unicolorous grey.

Abdomen lost, male and female genitalia unknown.

Differential diagnosis. T. dohertyi differs from other Micronoctuidae from SE Asian and Oriental regions in unique forewing pattern described above.

Distribution. Known from one specimen from Indonesia, Java.

Figures

PLATE 3. Figures 1–8. Tactusa species, adults. 1, T. jeppeseni, female holotype, India NE, Assam; 2, T. bechi, female holotype, India NE, Assam; 3, T. dohertyi, male holotype, Indonesia, Java Centr.; 4, T. minor, female holotype, Thailand N, Chiang Mai; 5, T. tranumi, female holotype, Vietnam N, Vinh Phuc; 6, T. artus, male holotype, Thailand N, Chiang Mai; 7, 8, T. biartus, male holotype, Thailand N, Chiang Mai, and wing prep. 3198, with same data.