Fustis sterlingi Fibiger

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119 : 44-45

publication ID

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

persistent identifier

https://treatment.plazi.org/id/7C67FC6F-2D18-FF84-FF28-FBE6ECEC7400

treatment provided by

Felipe

scientific name

Fustis sterlingi Fibiger
status

sp. nov.

Fustis sterlingi Fibiger View in CoL , new species

( Plate 5 View PLATE 5 , figure 6; male genit. plate 14, figure 6; female genit. plate 24, figure 2)

Material examined. Holotype: male, China, Hong Kong Island, Stanley , St. Stephen’s Beach, 0 m, 1.vii.2000, leg. M. Sterling, genit. prep. 4585 M. Fibiger, coll. BMNH.

Paratypes: 1 male and 1 female. 1 male with data as holotype ; 1 female, China, Hong Kong Island, Turtle Cove Beach , 0 m, 20.i.2003, leg. M. Sterling, genit. prep. 5840 M. Fibiger. Colls R. Kendrick and MF .

Diagnosis. Imago (external). Wingspan: from 7.5–9.5 mm (apo.).

Head, patagia, anterior part of tegulae, prothorax, basal part of costa, and costal upper patch of medial area: black.

Forewing ground colour: in male light grey, except black in medial area; in female black brown, especially dark in medial area (apo.).

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

Crosslines: all lines present, subterminal line weak.

Terminal line: marked by black interneural dots.

Reniform stigma: distinct, yellow, ovoid or narrowly ovoid, black outlined.

Hindwing: in male light grey, in female grey; with indistinct discal spot.

Underside: forewing grey; hindwing light grey, with indistinct discal spot.

Male genitalia. Tegumen: stout; dorsal one third totally fused, platelike (apo.).

Vinculum: two-branched; anterior one barlike; posterior one similar.

Saccus: short; broadly U-shaped.

Ampulla: narrowly ovoid, dorsal end slightly longer than ventral.

Digitus: small, platelike.

Anellus plate: prominently asymmetrical; heavily sclerotised; spatulate; apically free, club-shaped, with rounded processes (apo.).

Phallus: coecum short, apically rounded; broadest by ductus ejaculatorius; smoothly and heavily curved to tip.

Vesica: unarmed.

Female genitalia. Ovipositor: short; smoothly rounded posteriorly and at corners.

Posterior apophyses: same length as ovipositor.

Anterior apophyses: half length of posterior.

7 th and 8 th abdominal segment: fused throughout; right lateral side narrow, gradually becoming 4 times Antrum: short, as wide as long, conelike (apo.).

Ductus bursae: membranous, long and narrow, 3 times as long as corpus bursae.

Corpus bursae: globular.

Appendix bursae: arising posteriorly from ductus bursae.

Signum: cross shaped, longitudinal bar relatively long.

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

- smallsize;

- grey and black ground-colour, with contrasting wing pattern;

- large, yellow reniform stigma;

male genitalia, in

- tegumen dorsally with large plate;

- ampulla lobes almost straight, ovoid;

- anellus clublike, with rounded processes;

female genitalia, in

- wide ostium;

- short, conelike antrum.

Distribution. F. sterlingi known only from China, Hong Kong.

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Erebidae

Genus

Fustis

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