Chlamydastis carlosviquezi 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 carlosviquezi

description: Chlamydastis carlosviquezi Phillips and Brown, new species   
Figures 16, 63, 101, 127  
 Holotype. Male, Costa Rica, Alajuela, ACG, Sector Rincon Rainforest, Estación Leiva, Potrero Chaves, 450 m, 19.viii.2009, R. Franco and H. Cambronero, 09-SRNP-107366, GenBank accession code GU699323 (USNM).   
 Paratypes (28♂, 6♀). See Appendix 1.   
 Diagnosis. Chlamydastis carlosviquezi is superficially most similar to C. christerhanssoni, but it can be distinguished from the latter most easily by features of the male genitalia: a shorter, more distally attenuate uncus; a conspicuously concave termination of the valva (truncate in C. christerhanssoni); slightly slenderer lateral processes of the juxta; and a longer internal sclerite of the phallus.   
 Description. MALE (Fig. 16). Head. Frons and vertex white; labial palpus with first segment and basal 0.5 of second segment brownish, third segment whitish with a narrow brownish ring at base; antenna with sensory setae ca. 1.5 times width of flagellomere. Thorax. Dorsum and tegula whitish with scattered light brown scales. FW length 10.6–11.3 mm; FW ground color white with faint, irregular gray striations; four small gray marks along costa at ca. 0.10, 0.25, 0.50, and 0.75 distance from base to apex, with marks progressively larger from base to apex; an irregular black dash at end of discal cell; a similarly colored small mark on hind margin about 0.25 from base to tornus; small patch of raised brownish scales at hind margin ca. 0.1 distance from base to tornus. HW light brown. Abdomen. Externally pale brown. Genitalia (Fig. 63) with uncus short, attenuate distally; gnathos arms slender, curved; valva with narrow-elongate dorsal part with an excavated apex bearing dense patch of specialized setae, and large triangular basal part (sacculus) bearing dense, long hairpencil; lateral processes of juxta broad, subrectangular; phallus with long internal sclerite.   
 FEMALE. Head and Thorax. Essentially as described for male, except sensory setae of antenna short, sparse; FW length 12.8–14.9 mm. Abdomen. Genitalia (Fig. 101) with papillae anales slender, nearly parallelsided throughout length; ostial area with broadly triangular, sclerotized flap; ductus bursae broad, sclerotized in posterior 0.5; corpus bursae ovate, signum reduced to small patch of tiny thorns.   
 DNA barcodes. The 37 barcode sequences of C. carlosviquezi form a BIN (BOLD:AAA1138) that includes two uniform clusters separated by a small split, with an average distance of 0.45% among the sequences, and a distance of 3.67% to its nearest neighbor, C. christerhanssoni. This small split may be an indication of two cryptic species, but that will require additional specimens or different genes.   
 Distribution. Chlamydastis carlosviquezi has been collected in ACG from 10 to 800 m in the dry and rain forests as well as the lowland intergrade between the two. It also has been collected on the Caribbean side at ca. 1000 m.   
 Biology. Chlamydastis carlosviquezi has been reared from larvae feeding on Chrysophyllum cainito L. (n = 28) and Manilkara chicle (Pittier) Gilly (n = 1) (Sapotaceae) (Table 1).   
 Immature stages (Fig. 127). Head reddish-amber; prothorax pale reddish with a large, ovoid, black spot at middle; T2 and T3 white at dorsum with four small black to brownish-black spots (pinacula of D1 and D2 setae), with three distinct bands from subdorsum to lateral, represented by a black blotch, a white band, and a second black band; A1–8 with a white dorsal “saddle” surrounding four elongate brownish, translucent pinacula, A9 with white saddle surrounding a pair of brownish pinacula; A1–8 with white antero-lateral dash; A10 pale brown.   
 Etymology. The specific epithet carlosviquezi is a patronym for Carlos Víquez in recognition of his curatorial and 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 page 20, DOI: 10.5281/zenodo.5042023