Chlamydastis mignondavisae Phillips and Brown, 2021

Phillips-Rodríguez, Eugenie, Brown, John W., Hallwachs, Winnie & Janzen, Daniel H., 2021, Chlamydastis Meyrick of Costa Rica: barcodes, biology, and descriptions of 36 new species (Lepidoptera: Depressariidae), Insecta Mundi 2021 (868), pp. 1-96 : 15-16

Chlamydastis mignondavisae Phillips and Brown , new species

Figures 11 , 96

Holotype. Female, Costa Rica, Cartago, Turrialba , 1–6.iii.1965, S. S. and W. D. Duckworth, USNM slide 13,244, USNMENT 01480465 ( USNM).

Paratypes (2♀). See Appendix 1.

Diagnosis. Chlamydastis mignondavisae is most similar to C. bernardoespinozai in facies and female genitalia (the male of C. mignondavisae is unknown). The forewing has a bold brown dash in the discal cell (rather than a slender line as in most members of the species group), terminating at a white dot, and a comma-shaped median fascia extending from midwing to the tornus. It can be distinguished from C. bernardoespinozai by its whiter ground color, slightly greater forewing length, and the slightly different shape of the signum in the female genitalia.

Description. MALE. Unknown.

FEMALE ( Fig. 11 ). Head. Frons, vertex and collar white; labial palpus white to cream intermixed with brownish scales, second segment with an irregular brownish lateral band reaching ca. 0.5 length of segment, third segment with brown scales at base; sensory setae of antenna short, sparse. Thorax. Dorsum and tegula cream to white. FW length 12.5–13.0 mm; FW white with irregular pale gray striations; a distinct black dash through middle of discal cell ending in a white dot; a slightly paler, comma-shaped patch from hind margin near tornus extending to outer margin of white dot at end of discal cell; two brown spots along costa, 0.4 and 0.8 distance from wing base to apex, distal spot larger; small, brown, subrectangular patch in termen near tornus. HW pale grayish brown. Abdomen. Externally cream. Genitalia ( Fig. 95 ) with papillae anales somewhat parallel-sided; ductus bursae short, ca. 0.3 as long as corpus bursae, gradually broadened throughout, with irregular patch of sclerotization occupying posterior 0.6; corpus bursae rounded, signum a broad, somewhat rounded plate, divided medially by a slender, uninterrupted line of sclerotization.

DNA barcodes. There are no sequence data available for this species.

Distribution. Chlamydastis mignondavisae has been collected only in Turrialba at 630 m elevation.

Biology. The food plant and immature stages are unknown.

Etymology. Chlamydastis mignondavisae is a patronym for Mignon Davis in recognition of her contributions to the knowledge of the Lepidoptera of Costa Rica through her involvement in the ALAS (Arthropods of La Selva) project.

Figures

Figures 9–15. Adults of Chlamydastis from Costa Rica – Curviliniella Species Group. 9) C. anniapicadoae, holotype, male, INB0003545350. 10) C. antonioazofeifai, holotype, male, INB0003317783. 11) C. mignondavisae, holotype female, USNMENT 01480465. 12) C. marianofigueresi, paratype female, 16-SRNP-105464. 13) C. colleenhitchcockae, holotype male, 97-SRNP-1651. 14) C. bernardoespinozai, holotype, male, 09-SRNP-107481. 15) C. bobandersoni, paratype, male, INBIOCRI001138251.

Figures 90–97. Female genitalia of Chlamydastis. 90) C. vividella, 09-SRNP-3713 (sml = sterigma median lobe; db = ductus bursae; cb = corpus bursae; sg = signum). 91) C. carolinagodoyae, paratype, INBIOCRI000428629. 92) C. angelsolisi, paratype, INBIOCRI0003903651. 93) C. lindapitkinae, paratype, INBIOCRI001827059. 94) C. anniapicadoae, paratype, INB0004263590. 95) C. antonioazofeifai, paratype, INBIOCRI001881279. 96) C. mignondavisae, paratype, Turrialba, USNM slide 13,244. 97) C. marianofigueresi, paratype, 16-SRNP-105464.