Eucosmocydia macabensis 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 : 22

Eucosmocydia macabensis Brown and Razowski , new species

Fig. 16 , 45

Diagnosis. Eucosmocydia macabensis is superficially similar to other congeners, but the basal half of the forewing is darker than that of most other species, with less orange overscaling, and the apical-most costal strigula is more slender and whiter than in other congeners. Eucosmocydia macabensis also can be distinguished by the presence of a slightly darker and broader (although ill defined), short median fascia extending obliquely from the basal 0.33 of the hind margin of the forewing. The female genitalia of E. macabensis are distinguished by the very small triangular pocket of the sterigma with a conspicuous pair of rugose patches in the lamella postvaginalis.

Description. Male. Unknown. Female. Head. Vertex and frons, labial palpus, and scales of antenna mostly pale grayish brown. Thorax. Nota brownish grey with a few small patches of darker brown. Forewing length 5.0 mm (n = 3); forewing ( Fig. 16 ) slightly broadened apically; costa weakly convex throughout; termen only weakly concave beneath apex, weakly convex at middle. Upperside ground color pale ocherous densely strigulated and reticulated with brown and a few orange scales; costal strigulae mostly concolorous with ground color, subapical one distinct, white, divisions dark brown; speculum paler than costal strigulae with similar lines and a series of inner spots; markings dark brown in form of dorso-submedian fascia and tornal blotch. Fringe pale brown, darker brown at tornus. Hindwing dark brown, paler basally. Fringe brownish grey. Abdomen. Genitalia ( Fig. 45 ) with papillae anales and apophyses unmodified, as described for the genus; pocket of sterigma short, crescent-shaped, a pair of subrectangular, rugose patches subventrally in post-ostial area; ductus bursae slender, membranous, with slightly bulbous enlargement just beyond ostium, gradually broadened to junction with corpus bursae; corpus bursae rounded, finely punctate throughout, with a pair of thorn-shaped signa, one conspicuously longer than other.

DNA barcodes. No sequence data are available for this species.

Types. Holotype ♀, Mauritius Islands, Plaines Wilhems District, Macabe Forest , lot 21, 13 Feb 1963, E. D. Cashatt ( USNM) . Paratypes (2♀). Mauritius: Same locality as holotype, lot 18, 28 Jan 1963 (1♀), lot 21, 13 Feb 1963 (1♀), E. D. Cashatt (USNM).

Distribution and biology. Eucosmocydia macabensis is known only from the Mauritius Island. The early stages are unknown.

Etymology. The specific epithet refers to the type locality of the Macabe Forest, Mauritius.

Figures

Figures 10–19. Adults of Eucosmocydia. 10) E. pancoviana, male holotype. 11) E. pancoviana, female paratype. 12) E. chlorobathra (arrow indicates anal lobe of hindwing). 13) E. chlorobathra, female paratype. 14) E. kirimiriana, male holotype. 15) E. kirimiriana, female paratype (arrow indicates diagnostic cream spot at base of wing). 16) E. macabensis, female holotype. 17) E. hymenosa, female holotype. 18) E. ugandensis, male. 19) Hindwing of E. pancoviana (arrow indicates anal lobe of hindwing).

Figure 42–46. Female genitalia of Eucosmocydia. 42) E. lecaniodiscana, USNM slide 142,063. 43) E. pancoviana, USNM slide 153682. 44) E. kirimiriana, USNM slide 143,280. 45) E. macabensis, USNM slide 153,710. 46) E. hymenosa, USNM slide 143,024.