Idiopteryx bivia ( Meyrick, 1918 )

Park, Kyu-Tek & Prins, Willy De, 2019, A review of the Lecithoceridae (Lepidoptera: Gelechioidea) of southern Africa, based on type specimens deposited in the Ditsong National Museum of Natural History (TMSA), with descriptions of three new species, Zootaxa 4623 (1), pp. 61-89 : 79

Idiopteryx bivia ( Meyrick, 1918)

( Figs. 7B , 8E, F, H )

Dragmatucha bivia Meyrick, 1918: 25 . TL: Drummond [KwaZulu-Natal], South Africa. [TMSA].

Idiopteryx bivia ; Meyrick 1925: 227; Janse 1954: 379.

Adult. ( Fig. 7B ). Wingspan 22 – 23 mm.

Diagnosis. The species is similar to I. discopuncta by having a similar orange-white antemedian and subterminal band across the wing, but it can be distinguished by the costa being nearly straight beyond the antemedian band, the subterminal band oblique and nearly straight, whereas in the latter the costa is concave medially and the subterminal band narrower, bent nearly in S-shape, broadest near costa. The forewing venation is illustrated in Fig. 8H ; see also Janse (1954, Pl. 163, Fig. 9 ). Female unknown.

Male genitalia ( Figs. 8E, F ). Similar to those of I. discopuncta , but can be distinguished by the valva with less concave costal margin and more narrowly produced apically. See also Janse (1954, Pl. 165, Fig. 1 - line drawing).

Female genitalia. See Janse (1954, Pl. 165, Fig. 2 - signum).

Material examined. Type no. 537, ♂ (holotype), [ South Africa], KwaZulu-Natal, Drummond, 7 xii. [19]15, A.J.T. Janse, much damaged. Five additional specimens in the TMSA, including 2♂ (Yellowood, 5-7 i 1965, L. Vári, gen. slide no. 5430), gen. slide no. CIS-7181/Park.

Distribution. South Africa (KwaZulu-Natal) ( Meyrick 1918).

Remarks. The species was described based on a single male.

Figures

FIGURE 1. Photos in the TMSA.A, Ditsong National Museum of Natural History (= formerly Transvaal Museum) in Pretoria; B, An exhibition at the entrance of the museum; C, Photo of A.J.T. Janse (1875–1970).

FIGURE 2. Photos in the TMSA. A, Drawers of the Lepidoptera collection in the TMSA; A1, Drawers for the species of Lecithoceridae; B, A drawer of type specimens arranged according to the type numbers (Gelechiidae, Lecithoceridae), which is preserved in a stainless cabinet placed in the fire-proof type-specimens room.

FIGURE 7. Adults. A, Dragmatucha proaula Meyrick, male; B, Idiopteryx bivia (Meyrick), male; C, I. discopuncta (Janse), female; D, I. obliquella Walsingham, male; E, I. jansei sp. nov., paratype, male; F, ditto, hind leg; G, I. natalensis sp. nov., holotype, male; H, ditto, hind leg.

FIGURE 8. Male and female genitalia & venation. A, male genitalia of Dragmatucha proaula Meyrick, gen. slide no. CIS- 7183/Park; B, ditto, aedeagus; C. ditto, venation, wing slide no. CIS-7138/Park; D, female genitalia of Idiopteryx discopuncta (Janse), gen. slide no. CIS-7180/Park; E, male genitalia of I. bivia (Walsingham), gen. slide no. CIS-7181/Park; F, ditto, aedeagus; G, forewing venation of Idiopteryx discopuncta (Janse), wing slide no. CIS-7182/Park (left); H, venation of I. bivia (Walsingham), wing slide no. CIS-7182/Park (right). Scale bar: 1.0 mm.

FIGURE 9. Male and female genitalia of Idiopteryx. A, male genitalia of Idiopteryx jansei sp. nov.; B, ditto, aedeagus; C, abdo- men; D, male genitalia of I. obliquella Walsingham; E, ditto, aedeagus; F, female genitalia of I. obliquella. Scale bar: 1.0 mm.