Chionodes sariguaensis Chang & Bidzilya 2020, sp. nov.
Creators: name: Chang, Patricia Esther Corro
name: Bidzilya, Oleksiy
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Chionodes
Chionodes sariguaensis

description: Chionodes sariguaensis sp. nov.
Figs 13–22
Type material. Holotype ³, Panama, prov. Herrera, Sarigua NP, 9.ii.2020, at light (P. Corro, S. Tarakanov, O. Bid-zilya) (ZMKU). Paratypes: Paratypes: 13³, 15♀, same data as for holotype (gen. slide 36/20³, 46/ 20♀, 51/ 20♀, O. Bidzilya) (MIUP, PCMENT, ZMKU).
Diagnosis. The new species is defined externally by brownish-black forewing with black markings in cell and yellow spots on the costal margin. The hindwing is characterized by presence of black hair-like scales in the basal portion. The male genitalia are distinguished by the long, slender, basally curved cucullus in combination with a very short sacculus and broad phallus with a caecum half as long. The evenly sclerotized segment VIII with lateral folds in combination with a large, rounded antrum, and elongate ductus bursae with comparatively large rounded signum are characteristic for the female genitalia. The slightly sclerotized sternum VIII in the male genitalia as well as membranous connection between apophyses anterior and laterally folded antrum in the female genitalia justify the placement of new species in the formosella species-group (Hodges 1999). Within this group, C. sariguaensis seems most closely related to species of the gilvomaculella -complex, particularly to C. emptor Hodges, 1999. The latter has a similar wing pattern except that the costal spot is white rather than yellow and males have androconial scales extended to 1/3 rather than to 1/2 length of the hindwing. The male genitalia of the new species differ from those of C. emptor in the cucullus with a more markedly curved base and longer (extended to half length rather than to base of uncus), the apically rounded rather than gradually narrowed saccus, and the caecum half as long as the phallus (longer than half length of phallus in C. emptor). In the female genitalia of C. sariguaensis sp. nov., the antrum is rounded rather than narrowed anteriorly, and the signum is rounded with short anterior and posterior protrusions, whereas it is ovate with a single large posterior protrusion in C. emptor.
Description. Adult (Figs 13–14, 18–20). Head covered with grey black-tipped scales, frons light grey to dirty white, labial palpus upcurved, segment 2 light grey mixed with black- and yellow-tipped scales, diffuse black belt on base and narrow black rings before yellowish-brown apex, inner and upper surface light grey to white, lower surface with brush of modified blackish-grey scales, segment 3 black with yellow apex and yellow medial ring, about as long and 1/2 –1/3 width of segment 2, acute; scape black with light-brown apex, flagellomeres black with very narrow dark brown rings. Thorax and tegulae black. Wingspan 9.7–10.2 mm. Forewing covered with grey black-tipped scales, black spot at 1/ 4 in mid width, black spot edged with light brown in middle of cell, black spot in fold edged with yellow from both sides near mid length of dosral margin, and two small black spots on 2/ 3 in cell corner separated by ochreous scales, four black streaks at 1/5, 1/3, 1/2 and 2/3 of costal margin, diffuse small yellow spot at 1/3 and 1/2 of costal margin, large yellow spot on 3/4 of costa, termen yellow spotted, subcostal veins mottled with yellow in basal half, cilia grey black-tipped. Hindwing dark grey to black with black androconial scales in basal half in male. Abdomen. Tergum VIII in male (Fig. 15) tongue-shaped, about half as long as sternum VIII, apically rounded, anterior margin with deep rounded emargination extended nearly to half length of tergum. Sternum VIII (Fig. 15) subrectangular, posteromedial corners rounded, posterior margin weakly emarginate medially, anterior margin with short triangular medial emargination. Tergum VII in female (Fig. 16) twice broader than long, with rounded posteromedial emargination extended to about half length of tergum VII, anterior margin straight; sternum VII (Fig. 16) bean-shaped, posterior margin with shallow medial emargination, anterior margin gradually rounded, posterior 2/3 distinctly sclerotized and weakly folded in medial 1/3, with short anteromedial lobe extended towards anterior margin. Male genitalia (Figs 21, 22) with uncus subrectangular, slightly broadened distally, covered laterally with hair-like setae, posterolateral corners and posterior margin rounded, about 1/2 length of tegumen, distal sclerite of gnathos slender, strongly curved at 1/4, then straight, apex weakly curved, subequal length with uncus; tegumen parallel-sided in distal portion and trapezoidal, weakly narrowed posteriorely in proximal portion, anteromedial emargination triangular, extending to about half length of tegumen, posterolateral corners distinct, triangular; cucullus very slender, strongly curved at 1/6 length, then straight, distal 1/4 curved, acute, slightly exceeding half length of uncus; sacculus very short, approximately 1/9 length of cucullus; vinculum slender, gradually narrowed posteriorly, with distinct transition to a rod saccus, extended far beyond apex of pedunculus; phallus as long as vinculum plus tegumen and uncus combined, nearly parallel-sided, as broad as width of uncus, rounded apically, vesica with irregular sclerites and patch of numerous spicules, caecum very slender, half as long as phallus, ductus ejaculatorius extended to 2/3–3/4 length of caecum, anterior sclerite of irregular shape. Female genitalia (Fig. 17) with papillae anales slender, covered base with long setae, apophysis posterior approximately 3 times as long as apophysis anterior, segment VIII subrectangular slightly longer than broad, posterior margin with deep narrow triangular medial emargination extended to about anterior margin, weakly sclerotized, with stronger sclerotized folds along lateral margins extended to anterior margin of antrum, apophysis anterior slightly longer than segment VIII, straight, antrum weakly narrower than segment VIII, rounded, extended to 2/3 length of apophysis anterior; ductus bursae very short, narrow; corpus bursae elongate, 3 times as long as broad, densely covered with small spines except posterior portion, ductus seminalis narrow, connected to anterior margin of corpus bursae on its left side; signum rounded, with paired posterior tooth and one anterior short dentate process.
Biology. Host plant unknown. Adults were collected at mercury-vapor lamp in forested habitats dominated by Acacia trees and shrubs during the dry season (Figs 23, 24).
Distribution. Panama, Herrera Province, Sarigua National Park.
Etymology. The specific name is derived from the type locality, Sarigua National Park in Herrera Province.
description: Published as part of Chang, Patricia Esther Corro & Bidzilya, Oleksiy, 2020, Three new species of Gelechiidae (Lepidoptera) from Panama, pp. 407-416 in Zootaxa 4890 (3) on pages 412-415, DOI: 10.11646/zootaxa.4890.3.7, http://zenodo.org/record/4306330