Pollex (Bilobiana) sulawesii, Fibiger, 2007

Fibiger, Michael, 2007, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea). Part 1, Taxonomy of the Pollexinae, Zootaxa 1567 (1), pp. 1-116 : 53-54

Pollex (Bilobiana) sulawesii Fibiger, new species

( Plate 10 , figure 6; male genit. plate 20, figure 1)

Material examined.

Holotype: male, [ Indonesia, Sulawesi], Celebes, Aer-temboga, Slinahava , -. viii.1948, leg. J. Westenberg, genit. prep. 3926 M. Fibiger. Coll. RMNH.

Diagnosis.

Wingspan: 11 mm.

Forewing: narrow, light brown.

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

Reniform: distinct, whitish grey, outlined by black.

Hindwing: unicolorous brown with an indistinct black discal spot.

Underside: unicolorous brown.

Male genitalia.

Tegumen: narrow.

Vinculum: short, stout.

Saccus: U-shaped, short.

Fultura superior: Y-shaped with long narrow arms, medially fused with tegumen and ventrally with juxtaanellus, without processes.

Valve: shorter than wide.

Ampulla: almost symmetrical, laterally directed, long, club-like, broadest subapically; densely setose with

long hair-like setae bent inwards.

Pollex : relatively short, ventrally directed, equally broad throughout; subapically and outwardly densely setose with long hair-like setae bent inwards.

Digitus: approximately half length of ampulla, tapered, curved, directed ventrally, apically pointed. Juxta-anellus plate: round, as wide as high, with a large hole for phallus.

Phallus: short, S-shaped, slightly tapered towards apex; coecum short and broad.

Vesica: with a rather large, bent, spine-like cornutus.

Differential diagnosis.

P. sulawesii differs from most other species by the almost symmetrical structures, the directions of the ampulla (lateral) and pollex (ventral), the relatively short digitus, and the S-shaped phallus. See also the next, similar species, P. merisulawesii .

Figures

PLATE 10. Figures 1–8. Pollex subgenera Proma and Bilobiana species, adults. 1, P. (Proma) archi, female holotype, Indonesia, Kangean Isl.; 2, P.(Bilobiana) kononenkoi, female holotype, Indonesia, Suwawesi N, Dumoga Bone National Park; 3, P.(B.) dumogai, male holotype, Indonesia, Suwawesi N, Dumoga Bone National Park; 4, P.(B.) palopoi, female holotype, Indonesia, Suwawesi, near Palopo; 5, P. (B.) circulari, female holotype, Indonesia, Suwawesi N, Dumoga Bone National Park; 6, P. (B.) sulawesii, male holotype, Indonesia, Sulawesi, Temboga; 7, P. (B.) merisulawesii, male holotype, Indonesia, Sulawesi, Tjamba; 8, P.(B.) lafontainei, female holotype, Philippines, Palawan, Mantalin ajan.