Pollex (Bilobiana) flavimacula, Fibiger, 2007

Fibiger, Michael, 2007, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea). Part 1, Taxonomy of the Pollexinae, Zootaxa 1567 (1), pp. 1-116 : 45-46

Pollex (Bilobiana) flavimacula Fibiger, new species

( Plate 5 , figs 3, 4; male genit. plate 15, figure 6, female genit. plate 23, figure 5)

Material examined.

Holotype: male Indonesia, West Sumatra, Rimbo Panti , 250 m, 00°20’50” N 100°04’07” E, leg. M. Fibiger. Coll. MF, to be deposited in ZMUC.

Paratypes: 10 males, 2 females: 3 males with same data as holotype ; 4 males, 2 females, [ Indonesia], Sumatra NE, Dolok Merangir , 180 m, males: 8–11.xi.1968, 5–9.ix.1969, 25.ix. –3.x.1969, 10.ix. –6.x.1970, 2ex 13– 14.xi.1971, leg. E. Diehl, genit. preps 5713, 5732 (males), 5731, 5733 (females) M. Fibiger ; 1 male, Indonesia, Sumatra N, Pematang Siantar, 400 m, 2°57’ N 99°3’ E, 16.xi.1991, leg. E Diehl; Indonesia, Sumatra N, Huta Padang, Asahan river , 500 m, 2°49’ N 99°14’ E, 30.x.1992, leg. E. Diehl, genit. prep. 4114 M. Fibiger ; 1 male, Indonesia, Sumatra, Prov. Ban, Lemboh Anai, SW Padangpanjong , 25 km S. Bukittinggi, prime forest, 400 m, 25.viii.1974, leg. E. Diehl, genit. prep. 5714 M. Fibiger. Colls. MF, ZSM .

Diagnosis.

Wingspan: 9–10 mm.

Forewing: narrow, blackish brown.

Transverse lines: black; terminal line marked by black dots between veins.

Reniform: distinct, yellow, outlined by black.

Hindwing: unicolorous brown with an indistinct black discal spot.

Underside: unicolorous brown.

Male genitalia.

Tegumen: narrow.

Vinculum: short, stout.

Saccus: V-shaped, short.

Fultura superior: Y-shaped with long narrow arms, fused medially with tegumen and ventrally with juxtaanellus.

Valve: shorter than wide.

Ampulla: long, finger-like, broadest subapically; densely setose with long hair-like setae bent inwards. Pollex : long, finger-like, slightly broader subapically; outwards densely setose with long hair-like setae bent inwards.

Digitus: huge, tapered, curved, directed ventrally, apically pointed.

Juxta-anellus plate: round, as wide as high.

Phallus: long, straight, slightly tapered towards apex; coecum long and narrow.

Vesica: with a large, straight, spine-like cornutus.

Female genitalia.

7 th abdominal segment: heavily sclerotised, asymmetrical, with two arched extentions ventrally on posterior edge of 7 th segment.

Position of ostium bursae: arises at 1/3 from anterior edge of 7 th segment, slightly displaced to left.

Antrum: basally and posteriorly narrow, medially enlarged; heavily sclerotised.

Ductus bursae: membranous; long, 2½ X longer than corpus bursae.

Corpus bursae: globular.

Appendix bursae: arising anteriorly from ductus bursae immediately after antrum.

Differential diagnosis.

See under the former species, P. laosi and P. kangeani .

Figures

PLATE 5. Figures 1–8. Pollex subgenus Bilobiana species, adults. 1, 2, P. (B.) laosi, male paratype, Laos, Prov. Wapi, Wapikhamthong, and male holotype, with same data; 3, 4, P. (B.) flavimacula, male holotype, Indonesia, Sumatra W, Rimbo Panti, male paratype, with same data; 5, P.(B.) parunkudai, male holotype, Indonesia, Java, Pekalongan; 6, P.(B.) diehli, male holotype, Indonesia, Sumatra N, Dolok Merangir; 7, P.(B.) abovia, female holotype, Indonesia, Sumatra N, between Pematang Siantar and Tigadoluk; 8, P.(B.) kangeani, male holotype, male holotype, Kangean Isl.