Pacifimusotima kosrena Ko & Solis & Lees & Albert 2024, sp. nov.
Creators: name: Ko, Jae-Ho
name: Solis, M. Alma
name: Lees, David C.
name: Albert, Austin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Crambidae
Pacifimusotima
Pacifimusotima kosrena

description: Pacifimusotima kosrena Ko & Solis, sp. nov.
(Figs. 1, 9–14, 17, 19)
Type materials. Holotype: ♂, MICRONESIA, KOSRAE: Okat, 09.XI.2022, (Jung S. W., Kim Y. H., Ko J. H.), (N5 ˚20'41.4″, E162 ˚58'15.5″ Alt.: 3 m), genitalia slide no. DIC-051.
Paratypes. (16 ♂, 3 ♀), MICRONESIA: 6 ♂, KOSRAE: Okat, 09.XI.2022, (Jung S. W., Kim Y. H., Ko J. H.), (N 5˚20'41.4″, E 162˚58'15.5″ Alt.: 3 m); 1 ♀, Sipyen waterfall, 10.XI.2022, (Jung S. W., Kim Y. H., Ko J. H.), (N 5˚17'02.9″, E 162˚57'25.5″Alt.: 17m), genitalia slide no. DIC-052; 2 ♂, Okat, 14.II.2023, (Jung S. W., Kim Y. H., Ko J. H.), (N 5˚20'34.0″, E 162˚58'35.0″Alt.: 8 m), genitalia slide no. DIC-100; 1 ♂, Tafunsak, 15.II.2023, (Jung S. W., Kim Y. H., Ko J. H.), (N 5˚22'06.0″, E 163˚00'02.0″Alt.: 5 m), genitalia slide no. DIC-101; 1 ♂, Tofol, 16.II.2023, (Jung S. W., Kim Y. H., Ko J. H.), (N 5˚19'42.0″, E 163˚00'40.0″Alt.: 2 m), genitalia slide no. DIC-095; 2 ♂, Mutunlik, Alt.: 22 m, 8.II.1953, (Clarke, J. F. G.), light trap, USNMENT01894167, USNM genitalia slide no. 116386 (handwritten Munroe label “ Parthenodes ” sp. 1); 1 ♂, Mutunlik, Alt.: 22 m, 6.II.1953, (Clarke, J. F. G.), light trap, USNMENT01899030, USNM genitalia slide no. 105165 (originally CNC slide # ER 460); 1 ♂, Mutunlik, Alt.: 22 m, 8.II.1953, (Clarke, J. F. G.), light trap, USNMENT01552840; 1 ♂, Mutunlik, Alt.: 22 m, 16.II.1953, (Clarke, J. F. G.), light trap, USNMENT01894098, USNM genitalia slide no. 116387; 1 ♂, Mutunlik, Alt.: 22 m, 26. I.1953, (Clarke, J. F. G.), light trap, USNMENT01374377; 1 ♀, Mutunlik, Alt.: 22 m, 15.II.1953, (Clarke, J. F. G.), light trap, USNMENT01374376 (handwritten labels: “ Parthenodes ” sp., not in B. M., nearest to eugethes Tams, det. E. L. Martin, 1953; species group placed in Parthenodes by Hampson, but are not Nymphulinae, E.L. Martin, 1953 (handwritten Munroe label “ Parthenodes ” sp. 1); 1 ♀, Wakap, Alt.: 490 m, 7.IV.1953. (Clarke, J. F. G.), light trap, USNMENT01552841, USNM genitalia slide no. 105166 (originally CNC slide #461).
Diagnosis. Pacifimusotima kosrena sp. nov. is morphologically very similar to P. eugethes (Tams, 1936), but can be distinguished by the following characteristics: a basal band is present in the basal area of the forewing; the discal reniform patch on the forewing is absent; basal and postmedial bands are present on the hindwing. In the male genitalia, the apex of the uncus is more pointed than that of P. eugethes; the gnathos is slender and more pointed than that of P. eugethes. In the female genitalia, the ductus bursae and corpus bursae are narrower than those of P. eugethes.
Description. Adult (Figs. 1, 9–13). Length of forewing 11–13 mm in both sexes. Head covered with white scales; antennae prismatic, laterally compressed; ocellus and chaetosemata absent; labial palpus upturned, covered with white scales; maxillary palpus short, covered with white scales; proboscis well–developed. Patagium and tegula covered with white scales, except brown band at dorsal center. Ground color of forewing white; basal and antemedial area with brown bands; brown postmedial fascia W-shaped from terminal area; fringe white. Ground color of hindwing white; basal band brown; postmedial band brown, with dark brown line inner; fringe white. Abdomen white.
Male genitalia (Fig. 14). Uncus elongated, strongly sclerotized, and weakly hooked at tip; gnathos elongated, almost same length as uncus and pointed at tip; tegumen almost same length as transtilla; valva nearly subspatulate, weakly curved at costa; juxta membranous, broad; saccus U-shaped; phallus cylindrical, sclerotized basally, with a hook-shaped cornutus.
Female genitalia (Fig. 17). Papillae anales ovate; posterior apophyses long, almost same length as anterior apophyses; antrum funnel-shaped, membranous; ductus seminalis from near anterior beginning of ductus bursae; ductus bursae membranous, about 1/2 length of corpus bursae; corpus bursae membranous, ovate, without signum.
Distribution. Micronesia (Kosrae), formerly known as Kusaie or Strong’s Island.
Host plants. Unknown.
Etymology. The specific name was derived from the type locality, Kosrae, Micronesia.
description: Published as part of Ko, Jae-Ho, Solis, M. Alma, Lees, David C. & Albert, Austin, 2024, Pacifimusotima Ko & Solis, new genus and species of the Musotiminae (Lepidoptera: Crambidae) from the Federated States of Micronesia, including two newly combined species, pp. 111-122 in Zootaxa 5497 (1) on page 115, DOI: 10.11646/zootaxa.5497.1.6, http://zenodo.org/record/13617989