Tactusa discrepans Fibiger, 2010
publication ID |
https://doi.org/ 10.11646/zootaxa.2583.1.1 |
DOI |
https://doi.org/10.5281/zenodo.5459418 |
persistent identifier |
https://treatment.plazi.org/id/7C67FC6F-2D2C-FF88-FF28-FF26EA467208 |
treatment provided by |
Felipe |
scientific name |
Tactusa discrepans Fibiger |
status |
sp. nov. |
Tactusa discrepans Fibiger View in CoL , new species
( Plate 4 View PLATE 4 , figure 4; male genit. plate 14, figure 2)
Material examined. Holotype. Male , Thailand, Chieng Mai , Doi Inthanor Nat. Park, Siriphum, 1200–1300 m, 21.–24.x.1984, leg. O. Karsholt et al., genit. prep. 2947 M. Fibiger, coll. ZMUC.
Paratypes. 3 males. 1 male, Thailand, Chiang Mai Prov., Doi Inthanor, Maeo Khan Klang , 1300 m, 16– 17.x.1983, leg. M. Owada, genit. prep. 3337 M. Fibiger ; 1 male, N Thailand, Doi Suthep Pui , 1200 m, 26– 28.vii.1989, leg. J.D. & D.J. Bradley & Angoon Lewvanich, Brit.Mus. 1981-150, genit. prep. 3189 M .
Fibiger; 1 male, Thailand, Chiang Mai, Chiang Dao WS, h’way 1322 to Wiang Haeng, 5 km from Khun Mae Ngaay c’point, 780 m, 17.iv.1994, leg. IJ. Kitching et al., genit. prep. 3188 M. Fibiger, BMNH (E) 1994-97. Colls ZMUC, BMNH, and NSMT.
Diagnosis. Imago (external). Wingspan: 12 mm.
Forewing: with a very large triangular, black patch, including fringes, that extends from antemedial point on costa to apex and to tornal edge; few light-brown patches present within large patch (apo.).
Crosslines: parts of postmedial and subterminal lines present, light brown; terminal lines indicated by blackish-brown interneural spots; parts of fringes basally light brown, together forming a line.
Reniform stigma: present; very narrow; yellowish, traceable only as slight widening of postmedial line, outlined broadly by black (apo.).
Hindwing: dark grey, with indistinct discal spot.
Underside: unicolorous grey.
Abdomen: grey, with black crest dorsally on first segment.
Male genitalia. Tegumen: relatively strongly built.
Vinculum: well built.
Saccus: short; strongly built, broadly V shaped.
Fultura superior: membranous.
Valvae: asymmetrical, one on left broader; sacculus subbasally with a broad-based triangular process, setose at tip (apo.).
Ampulla: forming a cross with axis of valva; slightly asymmetrical, broadest by valva; arms broad, dorsal arm longer, with small, stout spines at tip, and ventral arm equally broad throughout rounded apically (apo.).
Digitus: present; hill-like and heavily sclerotised (apo.).
Juxta and anellus plate: asymmetrical, fused, quadrangular ventrally and rounded dorsally, with hole for phallus at right side by rounded edge (apo.).
Phallus: coecum very short, broad at ductus ejaculatorius, tapered conelike from there and bent ventrally, then curved smoothly upwards to tip (apo.).
Vesica: unarmed.
Female genitalia. Unknown.
Differential diagnosis. T. discrepans differs from other members of second half of species-group in large blackish patch, with hardly visible, very narrow reniform stigma; in male genitalia, in triangular saccular process, rounded digitus, shape of ampulla, and ventrally quadrangular juxta-anellus plate.
Distribution. Known from four specimens from N Thailand, taken in April, July, and October.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Phylum |
|
Class |
|
Order |
|
Family |
|
Genus |