Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae Author FIBIGER, MICHAEL text Zootaxa 2010 2010-08-31 2583 1 1 119 http://dx.doi.org/10.11646/zootaxa.2583.1.1 journal article 10.11646/zootaxa.2583.1.1 1175­5334 10094382 Fustis s-forma Fibiger, new species ( Plate 6 , figure 5; male genit. plate 16, figure 1) Material examined. Holotype : male, Thailand NE, ca. 5 km NE junction road 1081–1307 towards Ban Nam Lee Pattana , 28.xi.2003 , leg. L. Peregovits , M. Földvári & Á. Körösi , genit. prep. 6070 M. Fibiger , coll. HNHM . Diagnosis. Imago (external). Wingspan: 13.5 mm (apo.). Head, patagia, anterior part of tegulae, prothorax, basal part of costa, triangular patch of medial area, and terminal area, including fringes: black. Forewing: long and narrow, with pointed apex; brown ground colour (apo.). Abdomen: dark grey; with dorsal tuft on basal segment. Crosslines: untraceable, except subterminal line weakly marked, beige, and terminal line marked by black interneural dots. Reniform stigma: beige, ovoid, black outlined. Hindwing: grey; with narrow brown terminal line and indistinct discal spot; fringes basally beige, distally grey. Underside: forewing grey-brown; hindwing light grey, with discal spot. Male genitalia. Tegumen-fultura superior: fused, with diaphragm medially forming a tube (apo.). Vinculum: two-branched; centre one barlike; posterior one branchlike, not curved. Saccus: relatively long; broadly U-shaped. Valvae: slightly asymmetrical. Ampulla: bilobed; slightly asymmetrical; lobes tapered strongly from subapically twice as broad and rounded ventral part to slightly shorter dorsal, rounded tip; dorsal lobe narrow, straight; ventral lobe broad, curved (apo.) Digitus: rather large, platelike, broadly quadrangular. Juxta-anellus plate: inseparable (phallus on left side); base strongly asymmetrical, with narrow processes; medially with extremely long, heavily sclerotised, free, tapered, and S-curved process; with curved, setose, pointed tip (apo.). Phallus: coecum short and broad, smoothly rounded; broadest by ductus ejaculatorius; there with short forewardly directed process (a stop-function connected with juxta-anellus ventral processes); slightly upturned and tapered outwards; tip ventrally with small hook (apo.). Vesica: armed with a small and short, heavily sclerotised rectangular plate (apo.). Differential diagnosis. F. s-forma differs from other Fustis species in: - brown ground colour; - fused tegumen-fultura superior plate; male genitalia, in - shape of ampulla, especially narrow dorsal arm; - long, S-formed, setose, pointed anellus; - phallus short, slightly upturned, with ventral small hook at tip; and