Tactusa peregovitsi Fibiger

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119: 22

publication ID

http://doi.org/ 10.11646/zootaxa.2583.1.1

DOI

http://doi.org/10.5281/zenodo.5459400

persistent identifier

http://treatment.plazi.org/id/7C67FC6F-2D26-FFBD-FF28-F9EBEB59729E

treatment provided by

Felipe

scientific name

Tactusa peregovitsi Fibiger
status

new species

Tactusa peregovitsi Fibiger   , new species

( Plate 2, figure 4; male genit. plate 13, figure 1)

Material examined. Holotype: male, Vietnam N, Prov. Nghe An, Da Lat, Que Phong district, Ban Khom , 19’40’542 N, 104’54’147 E, 280 m, 21–23.i.1999, leg. L. Peregovits & L. Ronkay, coll. HNHM.  

Paratype: 1 male with same data as holotype, coll. & genit. prep. 3948 M. Fibiger   .

Taxonomic notes. T. peregovitsi   is a member of the trigonifera   species-group, which has a blackish triangular or quadrangular patch between the antemedial and postmedial lines; the typical Tactusa   ampulla; and a prominent, long, heavily sclerotised anellus, which is still totally fused to juxta.

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

Forewing: ground colour yellowish brown, with acutely-angled, triangular, blackish patch in upper medial area; and black subterminal area, medially extended towards base (apo.).

Crosslines: only subterminal and terminal lines indicated, latter with interneural black spots.

Reniform stigma: well marked, white.

Hindwing: dark grey, with indistinct discal spot.

Underside: unicolorous grey.

Male genitalia. Tegumen: narrow.

Vinculum: strongly built.

Saccus: short, strongly built, broadly V shaped.

Fultura superior: membranous.

Valva: slightly asymmetrical.

Ampulla: forming a cross with axis of valva, slightly asymmetrical, both distally emarginate (apo.).

Digitus: present; fingerlike, pointed at tip (apo.).

Juxta and anellus plate: fused; anellar plate huge, long and clublike; apical half free from diaphragm (apo.).

Phallus long, narrow, strongly curved and coiled, with small carina-spine, and an equally small subapical spine (apo.).

Vesica: without cornuti.

Female genitalia. Unknown.

Differential diagnosis. T. perogovitsi   differs from other Micronoctuidae   from SE Asian and Oriental regions in shape of black subterminal band, and in male genitalia, shape of digitus, huge, clublike anellus and two small spines on phallus.

Distribution. Known from just two male specimens from N Vietnam.

HNHM

Hungarian Natural History Museum (Termeszettudomanyi Muzeum)

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Erebidae

Genus

Tactusa