Chlamydastis willsflowersi Phillips and Brown 2021, new species
Creators: name: Phillips-Rodríguez, Eugenie
name: Brown, John W.
name: Hallwachs, Winnie
name: Janzen, Daniel H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Oecophoridae
Chlamydastis
Chlamydastis willsflowersi

description: Chlamydastis willsflowersi Phillips and Brown, new species   
Figures 50, 89, 123  
 Holotype. Male, Costa Rica, Guanacaste, ACG, Sector Cacao, Estación Cacao, 1150 m, 23.vii.2009, R. Franco and S. Ríos, 09-SRNP-106691, GenBank accession code GU698980 (USNM).   
 Paratypes (7♂, 6♀). See Appendix 1.   
 Diagnosis. Superficially, C. willsflowersi is somewhat similar to C. christerhanssoni with a gray to beige FW ground color and a rather nondescript pattern. It can be distinguished easily from all other congeners by its unique male genitalia with a patch of 4–5 long, thick, distally curved setae between the lobes of the valva (Fig. 78). Although barcodes are similar to those of the Curviliniella Species Group, the male genitalia contradict this placement.   
 Description. MALE (Fig. 50). Head. Frons beige, vertex beige mixed with light brown scales; labial palpus mostly beige with dark brown exterior of second segment; antenna with sensory setae ca. 1.5 times width of flagellomere. Thorax. Dorsum and tegula whitish with light brown scales distributed evenly throughout. FW length 8.2–8.7 mm; FW ground color mostly beige, with four, irregular, variably developed, costal lines at base of FW and at 0.25, 0.50, and 0.75 distance from base to apex; small patch of raised white and brown scales near end of discal cell; subterminal and terminal lines brownish, undulate; posterior 0.5 without markings basally; a “comb” of short lines of pale-yellow scales at base. HW beige. Abdomen. Beige externally. Genitalia (Fig. 89) with uncus short, strong; valva with round apex, with an unusual, long, armlike projection from base of costa extending dorsad, bearing dense patch of specialized setae subapically; 4–5 long, thick, distally-curved setae originating from sacculus between dorsal and ventral lobes of valva; phallus moderately long, curved, with sclerotized distal tip; vesica with single large cornutus.   
 FEMALE. Head and Thorax. Essentially as described for male, except sensory setae of antenna short, sparse; FW length 9.2–9.3 mm. Abdomen. Genitalia (Fig. 123) with papillae anales rather broad, rounded and slightly diverging posteriorly, with slender line of sclerotization near middle of inner margin; sterigma a simple band; ductus bursae narrow at sclerotized antrum, remainder broad, lightly sclerotized throughout; corpus bursae rounded with a large, spindle-shaped, spiny signum.   
 DNA barcodes. The 19 barcode sequences of C. willsflowersi form a uniform BIN (BOLD:ABX6593) with an average distance of 0.15% among sequences and a distance of 8.39% to the nearest neighbor, C. marianofigueresi.   
 Distribution. Chlamydastis willsflowersi has been collected primarily in the cloud forest and dry forest-rain forest lowland intergrade in ACG from 634 to 1150 m, with a single specimen from 1400 m on the west side of Volcan Cacao.   
 Biology. Food plants and immature stages remain unknown.   
 Etymology. Chlamydastis willsflowersi is named in honor of Wills Flowers in recognition of his taxonomic contributions to the national biodiversity inventory of Costa Rica.
description: Published as part of 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), pp. 1-96 in Insecta Mundi 2021 (868) on pages 46-47, DOI: 10.5281/zenodo.5042023