Longiantrum legraini Fibiger, 2010

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119 : 56

Longiantrum legraini Fibiger , new species

( Plate 7 , figure 2; female genit. plate 24, figure 4)

Material examined. Holotype. Female. Thailand, Prov. Loei, Phu Luang Wildlife Santuary , 700–900 m, 8.– 14.x.1984, O. Karsholt et al., genit. prep. 2941 M. Fibiger, coll. ZMUC.

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

Head, patagia, anterior part of tegulae, prothorax, basal part of costa, and costal part of medial area: blackish brown; costal medial area narrowly quadrangular.

Forewing ground colour: dark brown throughout, including fringes (apo.).

Crosslines: diffuse, beige; terminal line marked by black interneural dots.

Reniform stigma: distinct, white, outlined black (apo.).

Hindwing: light grey, fringes beige.

Underside: forewing light brown, hindwing light grey.

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

Posterior apophyses: as long as ovipositor.

Anterior apophyses: slightly longer than posterior apophyses; arising free from 8 th segment (apo.).

7 th and 8 th abdominal segment: separated by membrane, except ventrally towards ostium (apo.).

Ostium: wide, displaced to left.

7 th segment and antrum: band extending from posterior apophyses to anterior end of antrum (apo.).

Antrum: extremely long.

Ductus bursae: membranous, long and narrow; coiled from antrum; 1.5 times longer than corpus bursae (apo.).

Corpus bursae: globular.

Appendix bursae: arising posteriorly from ductus bursae.

Signum: cross shaped, longitudinally platelike.

Differential diagnosis. L. legraini differs from other Longiantrum species in:

- blackish brown ground-colour throughout;

female genitalia, in

- 7 th and 8 th segment separated membranously, except by ostium;

- sclerotised bands in antrum from anterior apophyses;

- ductus bursae narrow, posteriorly coiled.

Distribution. L. legraini known only from Thailand.

Figures

PLATE 7. Figures 1–8. Longiantrum, Abes, Asyprocessa, Tantulius, and Asymelissa species, adults. 1, Longiantrum coclea, female holotype, Vietnam N, Ban En Base Camp; 2, L. legraini, female holotype, Thailand, Loei; 3, L. burmaensis, male holotype, Myanmar N, Htawgaw; 4, L. quadra, male holotype, Vietnam N, Tonkin; 5, Abes vedi, female holotype, Thailand N, Chiang Mai; 6, Asyprocessa wapi, male holotype, Laos, Wapi; 7, A. laevi, female holotype, Thailand, Chiang Mai; 8, A. spinus, male holotype, Malaysia W, Penang.