Ptilothyris aglaocrossa Meyrick, 1935

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 : 227-229

14. Ptilothyris aglaocrossa Meyrick, 1935

( Figs. 17 A–H)

Ptilothyris aglaocrossa Meyrick, 1935: 564 . TL: DR Congo. [RMCA]

Diagnosis. Male ( Figs. 17 A–C). Forewing length 10.0–11.0 mm. The forewing of P. aglaocrossa is not remarkably elongated as other species of the genus and strongly oblique from 3/4 of costa, and it is characterized by having a small, orange costal patch near 3/4 of costa on forewing and pale orange fringes along inner margin in hind wing. The uncus in male genitalia is gently convex and the basal plate of gnathos is triangularly convex on caudal margin. Male genitalia ( Figs. 17 D–G). Uncus broadened, forming a large, fan-shaped plate, gently convex on caudal margin. Basal plate of gnathos triangularly convex medially on caudal margin and much more exceeding the apex of uncus caudally. Valva slightly expanded near base on costa, ventral margin nearly straight; cucullus elongate, slightly concave on costal margin and gently rounded on outer margin; tip not smoothly curved. Ventral plate of juxta large, with oblique caudal margin, not bifurcate; dorsal plate with large, irregular pentagons laterally. Vinculum banded, narrow, heavily sclerotized. Phallus slender, slightly shorter than valva, dorsal margin sharply pointed apically; cornuti consisting of rows of minute spinules in apical 1/3 ( Fig. 17G ). The hair pencils in abdominal segment VIII relatively short ( Fig. 17H ).

Material examined. [RMCA]: 1♂ (lectotype), DR Congo, MUSÉE DU CONGO, Elisabethville, [Lubumbashi, 11˚39]ʹ0ʹʹN 27˚28ʹ0ʹʹE, leg. Ch. Seydel, M3299, S. DET. E.E. 2877, gen slide no. CIS-7098; 1♂ (non-type), DR Congo, Urundi , Kitega, 30 iv 1964, M. Fontaine, gen slide no. CIS-7101 .

Distribution. DR Congo.

Remarks. The species was described based on a single male collected from DR Congo. The genitalia of the type have not been dissected, but the genitalia of an additional specimen preserved in RMCA were dissected and are illustrated here.

Figures

FIGURE 17. Ptilothyris aglaocrossa Meyrick. A, Lectotype, male, in NHMW; B, Labels of lectotype; C, Labial palpus; D, Male genitalia, gen. slide no. CIS-7098; E, Phallus; F, Uncus and juxta, gen. slide no. CIS-7101; G, Phallus, with a close-up of cornutus; H, Abdomen, with hair-pencils.