Tactusa pars Fibiger, 2010

Fibiger, Michael, Han, Hui-Lin & Kononenko, Vladimir S., 2011, Five new species and one new subspecies of Micronoctuidae from China, with a checklist of Chinese species, including Taiwan (Lepidoptera: Noctuoidea, Micronoctuidae), Zootaxa 2777, pp. 41-53 : 47-51

Tactusa pars Fibiger, 2010

( Figs. 11 , 20, 24 )

Tactus pars Fibiger 2010 . Zootaxa 2583: 34, pl. 4: 6; pl. 14: 4; pl. 23: 2. Type-locality: Thailand, Kanchannaburi.

Material examined. 6 males and 2 females. 1 male, 1 female, China, Yunnan prov., Jiangcheng, 15–17.ix.2008, leg. Han, H.L., Qi, M. J. & Wang, Y., genit. preps 6212, 6213 M. Fibiger, colls NEFU; 4 male, China, Guizhou prov., Huangguoshu, 24–26.ix.2008, leg. Han, H.L., Qi, M. J. & Wang, Y., genit. preps 6220, 6222, 6226, 6232 M. Fibiger, colls NEFU and M. Fibiger; 1 female, China, Yunnan prov., Lincang, 6–7.ix.2008, leg. Han, H.L. & Liu, E., genit. preps 6233 M. Fibiger, coll. NEFU.

Diagnosis. T. pars is closely related to T. discrepans , but has large differences in both the male and female genitalia. Superficially, the two species are very similar, but in T. pars the subterminal line is narrower and broken. Both species belong in the artus species-group. In the male gfenitalia T. pars is always recognizable by the prominent sickle-like structure inside on the right ampulla. Wingspan: 10–11 mm. Forewing beige, with large, apical, black, triangular patch on forewing; hindwing dark grey, with discal spot. Male genitalia asymmetrical, right valva shortest; ampullae asymmetrical, broad and wide; right ampulla with prominent sickle-like process; juxta circular, with deep dorsal cleft; phallus with tapered, short, coecum; phallus tapers, S-shaped. Female genitalia with ostium positioned posteriorly on 8th abdominal segment, displaced to left; antrum heavily sclerotised, cylindrical; ductus bursae long and narrow; corpus bursae globular, with cross-shaped signum.

Bionomics. The biotope is a moist mainly broad-leaf forest with bushes and herbaceous plants, close to a river. All specimens are recorded at light in the middle of September. The early stages are unknown. Distribution. ( Fig. 30 ). Thailand, China (Yunnan and Guizhou prov.).

Figures

FIGURES 9 – 13. Micronoctuidae spp., adults. 9. Tactusa discrepans yunnanensis, male, holotype, China, Yunnan (NEFU); 10. T. discrepans yunnanensis, male, holotype, China, Yunnan (NEFU); 11. T. pars, China, Yunnan (NEFU); 12. T. brevis, male, holotype, China, Yunnan (NEFU); 13. T. brevis, male, paratype, China, Yunnan (NEFU)

FIGURES 19 – 25. Micronoctuidae spp., male and female genitalia. 19. Tactusa discrepans yunnanensis, male, holotype (NEFU); 20. T. pars, male (NEFU); 21. T. brevis, male, holotype (NEFU); 22. Belulla bibela,. female, paratype (NEFU); 23. Tactusa discrepans yunnanensis, female, paratype (NEFU); 24. T. pars, female (NEFU); 25. T. brevis, female paratype (NEFU).

FIGURES 26 – 30. Collecting sites and distribution map. 26. Broad-leaved and mixed forest, Huangguoshu, Prov. Guizhou. 27. Broad-leaved forest and banana plantations, Huangguoshu, Prov. Guizhou; 28. Broadleaved forest, Jiangcheng, Prov. Yunnan; 29. Mixed forest with Pinus yunnana, Lancang, Prov. Yunnan 30. Distribution map. Collecting localities: 1. Huangguoshu (Prov. Guizhou) 2. Guanling (Prov. Guizhou); 3. Lincang (Prov. Yunnan); 4. Mojiang (Prov. Yunnan); 5. Jiangcheng (Prov. Yunnan); 6. Lancang (Prov. Yunnan); 7. Jinghong (Prov. Yunnan).