Chlamydastis abelulatei 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 : 9-10

Chlamydastis abelulatei Phillips and Brown , new species

Figures 4 , 52

Holotype. Male, Costa Rica, Guanacaste, ACG, Sector San Cristóbal, Tajo Angeles , 540 m, 28.v.2010, C. Cano, 10-SRNP-2669, GenBank accession code JQ532130 ( USNM).

Paratypes (4♂, 1♀). See Appendix 1.

Diagnosis. This is the smallest species of the group (FW length 5.8–6.3 mm). The FW pattern is similar to that of C. vividella , as are the male genitalia, but in C. abelulatei the distal termination of the sacculus is less pronounced, without a free tip, and the cornuti are shorter and conical compared to those of C. vividella . In the female genitalia, the ductus bursae expands anteriorly as in C. vividella , but it is not as strongly sclerotized as in the latter.

Description. MALE ( Fig. 4 ). Head. Frons and vertex ocherous; labial palpus pale yellow intermixed with brown scales, a broad black lateral band on first segment and basal half of second segment, third segment with a preapical black band; antenna with sensory setae ca. 1.5 times width of flagellomere. Thorax. Dorsum and tegula rust-brownish. FW length 5.8 mm; FW somewhat two-toned, pale olive ocherous in basal 0.5, dark grayish in distal 0.5, with small whitish streaks; an ill-defined semicircular patch at costa just beyond middle. HW dark gray. Abdomen. Externally pale brownish. Genitalia ( Fig. 52 ) with uncus long, slender, rounded at tip; valva rather long, slender, with modified scale patch near apex, distal termination of sacculus weakly defined, without free tip; phallus with two short, conical cornuti.

FEMALE. Head and Thorax. Essentially as described for male, except sensory setae of antenna short, sparse; FW length 6.3 mm. Abdomen. Genitalia (not illustrated) with papillae anales narrowed and diverging posteriorly; ductus bursae enlarged in posterior 0.5, membranous; [corpus bursae missing in single female preparation].

DNA barcodes. The two barcodes of C. abelulatei form a BIN (BOLD:AAW0010) with a distance of 9.56% to its nearest neighbor, C. vividella .

Distribution. In Costa Rica this species has been found from ca. 50 to 540 m on the eastern side of the Cordillera Volcánica de Guanacaste and in the lowlands of the central Pacific region.

Biology. Chlamydastis abelulatei has been reared from larvae feeding on Pouteria exfoliata T. D. Penn (n = 6) ( Sapotaceae ) ( Table 1).

Etymology. Chlamydastis abelulatei is named in honor of Abel Ulate, in recognition of his logistic support of the national biodiversity inventory of Costa Rica.

Figures

Figures 1–8. Adults of Chlamydastis from Costa Rica – Vividella Species Group. 1) C. vividella, male, 10-SRNP- 1443. 2) C. vividella male, green form, 11-SRNP-20863. 3) C. vividella, female, 10-SRNP-1457. 4) C. abelulatei, holotype, male 10-SRNP-2669. 5) C. carolinagodoyae, holotype, male, INBIOCRI000625666. 6) C. angelsolisi, holotype, male, 08-SRNP-108399. 7) C. lindapitkinae, holotype, male, INB0003545629. 8) C. iangauldi, holotype, male, INBIOCRI000696328.

Figures 51–56. Male genitalia (phallus detached) of Chlamydastis from Costa Rica – Vividella Species Group. 51) C. vividella, 09-SRNP-69457 (u = uncus; g = gnathos; lp = lateral process of the juxta; vl = valva; ct = cornuti plates). 52) C. abelulatei, holotype, 09-SRNP-69457 (52a = detail of specialized setae). 53) C. carolinagodoyae, paratype, INB00CR0001410730. 54) C. angelsolisi, paratype, (54a = detail of cornuti) 07-SRNP-112603. 55) C. lindapitkinae, paratype, INBIO0001999736, (55a = detail of cornuti). 56) C. iangauldi, paratype, INB000588749, (56a = detail of cornuti).