Dragmatucha vittatella Park, 2020

Park, Kyu-Tek, Koo, Jun-Mo, Agassiz, David J. L. & Aarvik, Leif, 2020, A taxonomic review of the Afrotropical genus Dragmatucha Meyrick, 1908 (Lepidoptera, Gelechioidea, Lecithoceridae, Torodorinae), with descriptions of eleven new species, Zootaxa 4786 (2), pp. 151-175 : 159-160

5. Dragmatucha vittatella Park , sp. nov.

( Figs 5 A–G)

Type material. Holotype: male, Uganda, Kibale Nat. Park, Biol. Field Station , 19–24 xi 2014, LF leg. W. Mey; gen. slide no. CIS-7008 . Paratypes: 7♂, same data as holotype; wing slide no. CIS-7046; COI barcode CUNB- CBNU018 & CBNU065, in MfN .

Diagnosis. The new species can be distinguished from all the preceding new species by the dark yellowish brown forewing ground color with very broad, yellowish white antemedian band, and in the male genitalia it can also be distinguished by the sub-triangular cucullus with nearly straight outer margin.

Description. Male ( Figs 5 A–D). Wingspan 17.5–19.0 mm. Head: Covered with pale yellow, appressed scales dorsally. Antenna shorter than forewing; basal segment elongated, broadened distally, dark brown dorsally and yellowish white ventrally; flagellum pale yellow throughout, without distinct annulations, finely ciliate. Second palpomere of labial palpus thickened, arched, pale yellowish brown on outer surface; 3 rd palpomere slender, as long as 2 nd palpomere. Thorax: Tegula yellowish white, covered with dark brown scales in anterior 1/3; thorax also yellowish white, covered with dark brown scales anteriorly. Hind tibia with tuft of pale yellowish brown, strong setae medially; yellowish white on outer surface. Forewing with well-developed median area covered with dark yellowish brown scales preceded by broadly banded, yellowish white antemedian band; postmedian band yellowish white, triangularly broadened toward costa in anterior 2/5; costa slightly arched before 1/3 and beyond 2/3; apex slightly produced; termen slightly concave beyond apex; venation ( Fig. 5D ) as described in the description of the genus. Hind wing yellowish white, covered with yellowish brown scales in apical area and along termen; venation as described for the genus. Abdomen ( Fig. 5G ): Spinous zones on dorsal surface broad, with dense spines; segment VIII simple, with weakly sclerotized, crescent sclerite dorsally, along posterior margin not modified.

Male genitalia ( Figs 5E, F ): Uncus elongate, of even width, slightly curved downward, with acute apex, not exceeding apex of basal plate of gnathos. Basal plate of gnathos triangular, with acute caudal apex; median process gently arched dorsally, with sharply pointed apex. Tegumen sclerotized, deeply concave on anterior margin. Valva with costa broadly expanded basally, then concave; ventral margin nearly straight before cucullus; cucullus footshaped, densely setose, narrowed towards apex. Juxta broad, shield-shaped, concave on caudal margin, with vertical ridge centrally. Aedeagus stout, as long as uncus + tegumen, terminated with semi-ovate plate dorsally; cornuti consist of two large, sole-like plates with conic spines along margin and a small ovate one in distal part, and a crescent plate in basal part.

Female unknown.

Distribution. Uganda (Kibale Nat. Park).

Etymology. This species is derived from the Latin, vittatus (= striped) with a Latin diminutive suffix, - ella, referring to the well-developed band in the forewing.

Figures

FIGURE 5. Dragmatucha vittatella Park, sp. nov.: A, adult, holotype; B, labial palpus; C, dorsal view of head and thorax; D, venation, wing slide no. CIS-7046; E, male genitalia, holotype, gen. slide no. CIS-7008; F, ditto, aedeagus, with close-up cornuti; G, abdomen with spinous zones.