Idiopteryx obliquella ( Walsingham, 1881 )

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 : 81

Idiopteryx obliquella ( Walsingham, 1881)

( Figs. 7D , 9 D–F)

Cryptolechia obliquella Walsingham, 1881: 254 . TL: KwaZulu-Natal, Republic of Republic of South Africa. [NHMUK]. Dragmatucha obsepta ; Meyrick 1918: 24; Meyrick 1925: 227. TL: Zuzuland [KwaZulu-Natal], Republic of South Africa [TMSA].

Adult. ( Fig. 7D ). See also Janse (1954, Pl. 160, Fig. 3 - adult). Wingspan 11 – 19 mm.

Diagnosis. The species is distinguished from the preceding two species by the yellowish white head, the yellowish white thorax with two longitudinal fuscous bands, and the yellowish white forewing ground color. Venation given by Janse (1954, 163, Fig. 8 ).

Male genitalia ( Fig. 9D, E ). See also Janse (1954, Pl. 163, Fig. 7 - line drawing; Pl, 173, Fig. 1 - photo). Similar to those of the preceding species, the valva is more elongate with the ventral margin more gently arched, and the aedeagus longer.

Female genitalia ( Fig. 9F ). See also Janse (1954, Pl. 179, Fig. 4 - photo). The female genitalia of obsepta Meyrick were dissected and examined.

Material examined. [ South Africa], twelve additional specimens with gen. slide no. 3602 & 5429 are in TMSA, including 1 (abdomen missing), Ladysmith EF., 11 xii [19]30, A.J.T. Janse; Two males placed in a separate drawer, under the label of undetermined species (Natal, Umdoni Park, 17 iv 1985, D.M. Kroon) were dissected (gen. slide no. CIS-7223/Park, CIS-7224/Park) and identified as conspecific with this species.

For obsepta Meyrick ; type no. 536, ♂ (holotype), [ South Africa], Zuzuland, Prospect, 25 i 1916, A.J.T. Janse), and further 12 additional specimens with gen. slide no. 6653 & 8041 are in the TMSA. Of this series, a female (Karkloof, 13–19 xii [19]30, A.J.T. Janse) was dissected and examined, gen slide no. CIS-7207/Park.

Distribution. South Africa (KwaZulu-Natal) (Wallengren 1881).

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 3. Adults of Lecithocerinae with their labels: A, Atrichozancla gymnopalpa Janse, lectotype ♂; B, Atrichozancla phaeocrossis Meyrick, paratype ♂; C. Eridachtha crossogramma (Meyrick), holotype ♂; D, Frisilia compostoma Meyrick, holotype ♂; E, Homaloxestis lophophora Janse, lectotype ♂; F, Lecithocera aenicta Meyrick, holotype ♂; G, L. binotata Mey- rick, holotype ♂; H, L. flavipalpis Walsingham, holotype ♀; I, L. ideologa Meyrick, holotype ♂; J, L. lucernata Meyrick, ♂ specimen; K, L. myopa Meyrick, lectotype ♂; L, Plagiocrossa picrodora (Meyrick), lectotype ♀.

FIGURE 4. Male and female genitalia. A, male genitalia of Atrichozancla gymnopalpa Janse, a paratype, gen. slide no. CIS- 7206/Park; B, ditto, close-up of aedeagus; C, ditto, abdomen; D, male genitalia of Homaloxestis lophophora Janse, gen. slide no. CIS-7222/Park; E, ditto, aedeagus; F, right valva of a Taiwanese specimen; G, ditto, aedeagus; H. female genitalia of H. lophophora Janse, gen. slide no. CIS-7223/Park. Scale bar: 1.0 mm.

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.