Tactusa parasumatrensis Fibiger, 2010
publication ID |
https://doi.org/ 10.11646/zootaxa.2583.1.1 |
persistent identifier |
https://treatment.plazi.org/id/7C67FC6F-2D23-FFB9-FF28-FF86ECE97378 |
treatment provided by |
Felipe |
scientific name |
Tactusa parasumatrensis Fibiger |
status |
sp. nov. |
Tactusa parasumatrensis Fibiger View in CoL , new species
( Plate 1 View PLATE 1 , figure 6; male genit. plate 12, figure 3)
Material examined. Holotype: male, Indonesia, N Sumatra, Fort de Kock , 920 m, -. iii.1922, leg. E. Jacobson,
genit. prep. 3934 M. Fibiger, RMNH.
brown quadrangular patch between the antemedial and postmedial lines.
Diagnosis. Imago (external). Wingspan: 12 mm.
Forewing: ground colour greyish yellow.
Crosslines: all crosslines present, except basal line.
Reniform stigma: present but weakly marked; by lower outer edge of costal quadrangular patch.
Hindwing: dark grey, with indistinct discal spot.
Underside: unicolorous grey.
Male genitalia. Tegumen: narrow, considerable narrower than vinculum and saccus.
Vinculum: strongly built.
Saccus: short; strongly built, broadly U shaped.
Fultura superior: membranous.
Valva: asymmetrical, left side longer (apo.).
Ampulla: more or less forming a cross with axis of valva, elongated and narrow, convex by valva, distal edge concave, boomerang-shaped, with more pointed dorsal arm 2.5 times shorter than ventral (apo.).
Digitus: absent.
Juxta and anellus plate: totally fused, with hole for phallus; slightly asymmetrical.
Phallus: long; coiled clockwise, tapered towards apex, coecum upturned; with humps subbasally, almost straight until strong subterminal coil; subapically with a prominent, long spine.
Vesica: without cornuti.
Female genitalia. Unknown.
Differential diagnosis. T. sumatrensis differs from T. parasumatrensis in features given under former species. They both differ from other Micronoctuidae from SE Asian and Oriental regions in boomerangshaped ampulla, upturned coecum and spine of phallus.
Distribution. Known from a single specimen from N. Sumatra.
RMNH |
National Museum of Natural History, Naturalis |
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.
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