Fustis parasensora Fibiger

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119: 46

publication ID

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

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scientific name

Fustis parasensora Fibiger

new species

Fustis parasensora Fibiger   , new species

( Plate 5, figure 8; male genit. plate 15, figure 2)

Material examined. Holotype: male, Laos S, Sayaboury Prov. , Sayaboury, 30.ix.1986, leg. Native collector, genit. prep. 3318 M. Fibiger, coll. BPBM.  

Diagnosis. Imago (external). Wingspan: 10 mm.

Head, patagia, thorax, and ground colour of forewing, including fringes, brown; basal part of costa, and costal part of medial area: blackish brown (apo.).

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

Crosslines: indistinct or untraceable.

Terminal line: marked by black interneural dots.

Reniform stigma: indistinct; beige, outlined black.

Hindwing: grey.

Underside: forewing brown grey; hindwing grey.

Male genitalia. Tegumen: long; dorsally fused with fultura superior, forming a cone around anal tube (apo.).

Vinculum: two branched; centre one barlike; posterior one branchlike, quadri-circular (apo.).

Saccus: short; broadly U shaped.

Valvae: asymmetrical; almost equally broad outwards to base of clasper.

Clasper: barlike; oblique to valva margins.

Ampulla: equally broad throughout, with rounded tips, except apical emargination; dorsal lobe twice as long as ventral (apo.)

Digitus: small, triangular.

Juxta: trapezoid, with medial cleft on dorsal and ventral side.

Anellus plate: bilobed; prominently asymmetrical; left lobe, clublike; heavily setosed; right lobe spatulate, with brushy setae on part of right and left sides (apo.).

Phallus: coecum tapered to rounded tip; broadest by ductus ejaculatorius; smoothly and strongly curved upwards to tip.

Vesica: unarmed.

Female genitalia. Unknown.

Differential diagnosis. F. parasensora   differs from other Fust species in:

- smallsize;

- brown ground colour, with rather indistinct wing pattern;

male genitalia, in

- shape of ampulla, equally broad throughout, with rounded tips;

- anellus bilobed, left lobe clublike, heavily setose.

Distribution. F. parasensora   known only from South Laos.