Vas proceus Fibiger, 2010

FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, Zootaxa 2583 (1), pp. 1-119 : 41-42

Vas proceus Fibiger , new species

( Plate 5 , figure 4; female genit. plate 23, figure 8)

Material examined. Holotype: female, Vietnam N, Da Lat , near institute, 15.x1988, leg. Mahunka, Oláh & Vásárhelyi, genit. prep. 6067 M. Fibiger, coll. HNHM.

Paratype: 1 female, with same data as holotype, but coll. & genit. prep. 6068 M. Fibiger .

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

Head, patagia, tegulae, thorax, and ground colour of forewing: brown, narrow costal patch of medial and terminal area dark brown (apo.).

Forewing: long and narrow, with pointed apex.

Abdomen: grey, with dorsal tuft on basal segment.

Crosslines: all present, though indistinctly marked; terminal line marked by black interneural dots.

Reniform stigma: small, whitish, outlined by dark brown.

Hindwing: light grey, with indistinct discal spot.

Underside: forewing brown grey, hindwing light grey, discal spot of hindwing present.

Female genitalia. Ovipositor: quadrangular, with rounded corners.

Posterior apophyses: slightly longer than ovipositor.

Anterior apophyses: length 1/5 of posterior apophyses.

7 th abdominal segment: half as long as wide, shortest ventrally.

8 th abdominal segment: ventrally free, with postvaginal, conelike plate.

Ductus bursae: membranous, very long and narrow, 4 times as long as corpus bursae.

Corpus bursae: globular.

Appendix bursae: arising posteriorly from ductus bursae.

Signum: cross shaped, longitudinal bar shorter.

Differential diagnosis. Described under previous species.

Distribution. V. proceus known only from N Vietnam.

Figures

PLATE 5. Figures 1–8. Dignus, Vas, Nilgerides, and Fustis species, adults. 1, Tumula flavicollis, female holotype, Thailand N, Fang; 2, D. buchsbaumi, female holotype, Indonesia, Lombok; 3, Vas owadai, female holotype, Thailand N, Chiang Mai; 4, V. proceus, female holotype, Vietnam N, Da Lat; 5, Nilgirdes trifasciata, female holotype, Indonesia, Sumatra; 6, Fustis sterlingi, male holotype, China, Hong Hong, and female paratype, with same data; 7, F. malaysiensis, male holotype, Malaysia W, Trengganu; 8, F. parasensora, male holotype, Laos S, Sayaboury.