Eucosmocydia pappeana Brown and Razowski, 2022

Brown, John W., Razowski, Józef, Aarvik, Leif, Timm, Alicia E. & Copeland, Robert S., 2022, New species and new combinations in Afrotropical Eucosmocydia Diakonoff, 1988 (Lepidoptera: Tortricidae: Olethreutinae), Insecta Mundi 2022 (927), pp. 1-27 : 8-10

Eucosmocydia pappeana Brown and Razowski , new species

Fig. 2, 3 , 20 , 28 , 36, 37

“Grapholitini sp. 6”: Brown et al. 2014: 350.

Diagnosis. Eucosmocydia pappeana is the largest species of the genus (forewing length 6.0–7.0 mm), and males are the most easily distinguished superficially. The basal half of the forewing is much darker than in relatives, with black patches frosted with white scales. The hindwing has conspicuous linear white patches in the costal, discal, and subanal regions. Also, there is a tuft of specialized black scales laterally from the first abdominal segment. In the male genitalia the ventro-basal margin of the cucullus is more angled than in related species, where it is usually more rounded; the phallus is bent medially, rather than subterminally; and the dorsoposterior edge of the basal cavity of the valva is extended dorsally. In the female genitalia sternite 7 is distinctly elongate, and the cupshaped anterior part of the sterigma is short.

Description. Male. Head. Scales of vertex and frons dark gray mixed with pale gray; labial palpus weakly upturned, length ca. 1.2 times diameter of compound eye, third segment exposed, scales of labial palpus and basal flagellomeres of antenna concolorous with vertex. Thorax. Nota and tegula mostly black with four ill-defined, small patches of ochreous scales. Forewing length 6.0–7.0 mm (n = 2); forewing ( Fig. 2 ) slightly expanding terminad; costa weakly arched throughout; termen shallowly concave beneath apex, broadly convex in remainder; upperside ground color whitish, mixed with orange in posterior half of wing; pattern slightly two-toned, with dark basal 0.5 and paler distal 0.5; with large subsquare blotch from hind margin approximately 0.2–0.4 distance from base to tornus, representing dorsal part of median fascia, with a pair of short white lines at its outer margin, a few scattered, irregular, similarly colored blotches between blotch and costa; distal 0.5 of forewing with ground color pale brown with scattered black and gray scales; tornal blotch ill-defined; costal strigulae white, divisions brown; speculum near mid-termen dirty orange, with slender cream crescent-shaped mark with three or four black inner dots. Fringe pale brown. Hindwing dark brown with costa and subcosta white, an ill-defined white streak near middle of wing, and an elongate, slightly teardrop-shaped, white patch in subanal region. Fringe cream with brown basal line. Abdomen. Segment 7 ( Fig. 28 ) with expanded sclerite at mid-venter of anterior margin, coneshaped anteriorly, slightly rounded posteriorly. Genitalia ( Fig. 20 ) with tegumen fairly broad; proximal part of valva and ventral edge of sacculus straight; dorsoposterior edge of basal cavity extending above costa; ventral lobe of cucullus distinct, rounded, dorsal lobe slender; phallus slender, bent, with small ventroterminal thorn; caulis from a distinct convexity.

Female. Head and thorax. Essentially as described for male, except forewing upperside darker with pattern less defined (i.e., less contrast between basal and distal halves) with ill-defined dorsal lines and paler brown blotch, fewer white scales ( Fig. 3 ); and hindwing with indistinct traces of pale fasciae replacing white streaks in male. Abdomen. Lacking bands of white scales at posterior margin of segments. Venter of segment 7 with weakly sclerotized trapezoidal region. Genitalia ( Fig. 36, 37 ) with postvaginal sterigma formed by two weak dentate lateral plates; triangular region surrounding ostium short, stout, with small rounded expansion at anterior end, giving rise to frail ductus bursae; colliculum distinct; ductus bursae slender in posterior 0.3, gradually broadening anteriorly, more abruptly at origin of ductus seminalis; ductus bursae approximately as long as corpus bursae; corpus bursae rounded, finely punctate, with a pair of curved, thornlike signa about equal in size.

DNA barcodes. There are nine sequences of this species (from Kenya) in BOLD (BIN: ABW2608), with an average distance of 0.59% among samples, and 3.69% distance to its nearest neighbor. Two barcoded specimens from South Africa are 99.69% similar to those from Kenya. Barcodes suggest that E. pappeana may be the sister to E. mixographa .

Types. Holotype ♂, Kenya , Coast Province, Ronge-Nyika, mixed shrub and grassland, −3.41022, 38.42447, 943 m, 8 Jul 2012, r.f. Pappea capensis, CHIESA 240, R. Copeland . Paratypes (8♂, 6♀). Kenya: Coast Province: Ronge-Nyika, mixed shrub and grassland, −3.41022, 38.42447, 943 m, 6 Jul 2012 (1♂, 1♀), r.f. Pappea capensis, CHIESA 240, R. Copeland. Kitale-Marich Pass road, 01°23.870′N, 35°29.477′E, 1510 m, 17 Dec 2005 (1♂, 3♀), r.f. Pappea capensis , A&M #3160, R. Copeland. Naro Moru Lodge, 0°09′N, 37°01′E, 1980 m, 4 Sep 2003 (1♂, 1♀), r.f. Pappea capensis , A&M #2552, R. Copeland. South Africa: Gauteng: Pretoria East, 25°48′S, 28°22′E, 1000 m, 9 Nov 2004 (1♀), J. & W. DePrins (RMCA). Roodeplaat Ag. Res. Ctr., −25.6051, 28.3550, 2 Feb 2015 (5♂), J. Brown & T. Gilligan (USNM).

Distribution and biology. Eucosmocydia pappeana is known from South Africa and Kenya. The Kenyan specimens were all reared from Pappea capensis Eckl. & Zeyh. (Sapindaceae) (n = 9).

Etymology. The specific epithet refers to the genus of the host plant, Pappea Eckl. & Zeyh.

Remarks. Specimens from South Africa have a considerably smaller forewing length than those from Kenya, and the forewing pattern of males is less contrasting. However, the genitalia of both sexes and male secondary features are identical between the two groups of specimens (i.e., those from Kenya and South Africa), and the barcodes from South African specimens (n = 2) are 99.69% similar to those from Kenya (n = 9).

Figures

Figures 2–9. Adults of Eucosmocydia. 2) E. pappeana, male holotype. 3) E. pappeana, female paratype. 4) E. deinbolliana, male paratype. 5) E. mixographa, female. 6) E. lecaniodiscana, male holotype. 7) E. lecaniodiscana, female paratype. 8) E. nigeriana, male holotype. 9) E. nigeriana, paratype female.

Figures 20–27. Male genitalia of Eucosmocydia. 20) E. pappeana, USNM slide 153,769. 21) E. deinbolliana, USNM slide 153,700. 22) E. ugandensis, slide NHMO 3762. 23) E. lecaniodiscana, USNM slide 124,465. 24) Male genitalia of E. nigeriana, USNM slide 153,740.25) Male genitalia of E. pancoviana, USNM slide 153,695.26) Male genitalia of E. chlorobathra, USNM slide 153,691. 27) Male genitalia of E. kirimiriana, USNM slide 143,441.

Figures 28–35. Abdominal segment 7 of males of Eucosmocydia. 28) E. pappeana, USNM slide 143,426. 29) E. ugandensis, NHMO slide 3762. 30) E. deinbolliana, USNM slide 153,700. 31) E. lecaniodiscana, USNM slide 153,704. 32) E. nigeriana, USNM slide 153,740. 33) E. pancoviana, USNM slide 153,695. 34) E. chlorobathra, USNM slide 153,691. 35) E. kirimiriana, USNM slide 143,441.

Figure 36–41. Female genitalia of Eucosmocydia. 36) E. pappeana from Kenya, USNM slide 153,686. 37) E. pappeana from South Africa, USNM slide 144,514. 38) E. mixographa, USNM slide 143,434. 39) E. nigeriana, USNM slide 153,741. 40) E. chlorobathra from Kenya, USNM slide 143,442. 41) E. chlorobathra from the Seychelles, USNM slide 153,749.