Fustis extuta Fibiger

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119 : 48-49

publication ID

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

persistent identifier

https://treatment.plazi.org/id/7C67FC6F-2D1C-FF98-FF28-FDD6EC307588

treatment provided by

Felipe

scientific name

Fustis extuta Fibiger
status

sp. nov.

Fustis extuta Fibiger View in CoL , new species

( Plate 6 View PLATE 6 , figure 3; male genit. plate 15, figure 5)

Material examined. Holotype: male, N Thailand, 30 km N Mae Hong Son, Karen village , 1100 m, 16.vii.2003, leg., coll., and genit. prep. 4987 M. Fibiger, later to be deposited in ZMUC.

Diagnosis. Imago (external). Wingspan: 11 mm.

Head, patagia, anterior part of tegulae, prothorax, basal part of costa, triangular patch of medial area, and terminal area, including fringes: black.

Forewing ground colour: beige, suffused with light brown scales.

Abdomen: dark grey, with dorsal tuft on basal segment.

Crosslines: untraceable, terminal line marked by black interneural dots.

Reniform stigma: beige, broad ovoid, black outlined.

Hindwing: beige; with narrow brown terminal line and indistinct discal spot; fringes white basally, otherwise beige.

Underside: forewing grey brown, hindwing grey, with indistinct discal spot.

Male genitalia. Tegumen: long, medially narrow; basally and dorso-laterally broad, platelike.

Vinculum: two branched; centre one barlike; posterior one branchlike, not curved.

Saccus: short; broadly U shaped.

Valvae: relatively short and broad, slightly asymmetrical.

Anellus plate: prominently asymmetrical; relatively long, free, curved, heavily sclerotised, long brushlike structure; one side clothed with stout setae (apo.).

Juxta: trapezoid, with medial cleft on dorsal side.

Phallus: coecum short and broad, with rounded base, broadest by ductus ejaculatorius, subapically smoothly and downwards S curved to tip (apo.).

Vesica: armed with small plate.

Differential diagnosis. F. extuta differs from other Fustis species in:

- relatively narrow wings;

- yellow ground colour, with contrasting wing pattern;

male genitalia, in

- shape of bilobed ampulla, with pointed tip at both ends;

- anellus large, subapically curved, long brushlike; and

- subapically S shaped, tapered phallus.

Distribution. F. extuta known only from North Thailand.

ZMUC

Zoological Museum, University of Copenhagen

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Erebidae

Genus

Fustis

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