Ptilothyris pilosa Park, 2019

Park, Kyu-Tek, Mey, Wolfram, Koo, Jun-Mo, Prins, Jurate De & Cho, Soowon, 2019, Revision of the genus Ptilothyris Walsingham, 1897 (Lepidoptera: Gelechioidea: Lecithoceridae), with descriptions of eight new species from Africa, Zootaxa 4567 (2), pp. 201-235 : 212-215

5. Ptilothyris pilosa Park , sp. nov.

( Figs. 8 A–I)

Type specimens. Holotype: male, Uganda, Kibale Nat. Park, Biol. Field Station , 19–24 xi 2014, LF leg. W. Mey,

gen. slide no. CIS-7075, COI barcode CBNU001. Paratypes: 3♂, 1♀ (abdomen missing), same data as holotype, gen. slide no. CIS-7069 (♂), COI barcode CBNU037; -7002 (♂), wing slide CIS-7118, COI barcode CBNU048; - 7115 (♂), COI barcode CBNU045; Abdomen missing (♀), COI barcode CBNU002—the above mentioned types are in MfN; 1♂, Uganda, Kasese Distr., Kibale Nat. Park, 36N TF 0 582 6208, 1500 m, 19–24 x 2014, gen. slide no. CIS-7116, COI barcode CBNU079, leg. Leif Aarvik & Knud Larsen, deposited in NHMO .

Diagnosis. Ptilothyris pilosa is hardly distinguishable from P. serangota Meyrick with their superficial characters, but it can be distinguished by the male genitalia: ventral plate of juxta with nearly similar size, short caudal lobes, never with such a long and pointed process as in P. serangota ; phallus shorter and thicker than that of P. serangota ; cornutus thin, angled near middle, curved upward basally and downward apically, claw-like apically, but not observed in P. serangota .

Description. Male and female ( Figs. 8 A–D). Forewing length 9.5–11.0 mm.

Head: Dark purple dorsally, with light orange scales laterally, arising from upper margin of compound eye. Antenna sexually dimorphic; in male ( Fig. 8C ), basal segment slender, dark purple dorsally and light orange ventrally; flagellum strongly bipectinate with long flagellomeral branches, dark purple in basal 3/5, then orange white beyond, with gradually shortened flagellomeral branches; in female, slender, slightly serrated ( Fig. 8B ). Labial palpus, rather flattened, saber-shaped, light orange all around; second segment thickened; 3rd segment slender, as long as 2nd segment, densely speckling with black scales ventrally, with acute, blackish apex.

Thorax: Notum and tegula dark purple. Hind tibia with light orange dorsally and black scales on outer surface in basal 2/5, then pale orange in median 1/5, and with black scales all around in distal 2/5, with light orange apex; first tarsus black with light orange apex. Forewing elongate, ground color dark purple; antemedian fascia broad, well-developed in basal 2/5; postmedian fascia narrow, strongly convex outwardly at middle; costa slightly convex in basal 1/4, slightly concave medially, distinctly convex from 3/4, then oblique; apex obtuse; termen slightly oblique; cell closed; venation ( Fig. 8D ) with R 5 arising before middle, bent anteriorly at near base; R 3 and R 4 stalked for near basal 1/3; R 4 reaching before apex; R 5 absent; M 1 remote from R 3+4 at base; M 2 arising from lower corner of cell; M 3, CuA 1 and CuA 2 on common stalk; distance between M 3 and CuA 1 at base nearly equal to that of CuA 1 and CuA 2 at base. Hind wing broader than forewing; ground color same as that of forewing, with white hyaline patch, extending to the end of cell; venation with M 2 absent; M 3 and CuA 1 short-stalked.

Abdomen ( Fig. 8J ): Ventral surface pale orange from 1 st to 4 th segment, then fuscous beyond, densely spinous on tergites, with a pair of long hair-pencils on anterior margin of segment VIII; the hair-pencil twice longer than the length of segment VII.

Male genitalia ( Figs. 8 E–I) with uncus broadened distally, fan-shaped, emarginated mesially along caudal margin. Basal plate of gnathos large, as wide as uncus, trifurcated caudally, with long median lobe rounded apically, exceeding apices of lateral lobes; median process extremely broad at base, curved downward subapically. Valva elongate, with nearly parallel sides before cucullus; costa slightly convex near base, concave medially; cucullus elongate, more or less triangular with long hairs around ventro-proximal margin, apex obtuse. Juxta bifurcate, with different length of caudal lobes ventrally: left lobe shorter, slightly acute apically, right one rounded apically, slightly bigger than the left; dorsal plate very shortened, with triangular processes laterally. Vinculum a band, narrow, well sclerotized. Phallus rather slender, slightly arched, narrowed toward apex, slightly shorter than valva; cornutus small, heavily sclerotized, angled near middle, curved upward basally and downward apically, claw-like apically.

Distribution. Uganda.

Etymology. The species epithet is derived from the Greek, pilos (= hair), referring to hairy cilia of the antenna.

Figures

FIGURE 8. Ptilothyris pilosa Park. A, Holotype, male, in MfN; B, Female from Uganda; C, Antenna, holotype; D, Venation, paratype, wing slide CIS-7118; E, Male genitalia, holotype, gen. slide no. CIS-7075; F, Phallus; G, Lateral view of male genitalia; H, Juxta, paratype, gen. slide no. CIS-7002 (specimen same as 8D); I, Juxta, paratype, gen. slide no. CIS-7069; J, Abdomen, with hair-pencils, holotype.