Eugenys micra Jaume-Schinkel & Kvifte 2024, sp. nov.
Creators: name: Jaume-Schinkel, Santiago
name: Kvifte, Gunnar Mikalsen
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Eugenys
Eugenys micra

description: Eugenys micra sp. nov.
urn:lsid:zoobank.org:act: DDCD52D2-BE5D-4E0F-B3DC-BABEF28BEFDB
Figs 1, 3E, 4, 5A
Differential diagnosis
This species can be easily differentiated from all other species of Eugenys by the following characters: hypopods with singular apical tenaculum (10–14 present in E. singularis sp. nov. and E. cymosa, one in the remaining species); antennal flagellomeres without patch of darkened sensilla (present in E. upsilon sp. nov. and E. panamensis, absent in remaining species); aedeagus less than half length of ejaculatory apodeme (aedeagus long, more than half length of ejaculatory apodeme in E. clavellata).
Etymology
The speciphic epithet ‘ micra ’ is derived from the Greek ‘ mīkrós ’ (feminine ‘ mikrí’), referring to the small size of the aedeagus of the species.
Material examined
Holotype ECUADOR – Pichincha • ♂; Pedro Vicente Maldonado, Parroquia Pedro Vicente Maldonato, Roadway to Pachijal; 0.11882° N, 78.95802° W; alt. 750 m; 1–9 Feb. 2022; I. Kilian leg.; ZFMK-DIP-00097917; INABIO.
Paratypes COSTA RICA – Limon • 1 ♂; Hitoy-Cerere Biological Reserve; 9.80666° N, - 83.02500° E; alt. 100– 200 m; 17–26 Feb. 1999; L.W. Quate leg.; INBIO-CRI001472882; LACM • 1 ♂; same collection data as for preceding; INBIO-CRI001472884; INBIO • 1 ♂; same collection data as for preceding; INBIO-CRI001472896; INBIO.
Description
Male (holotype)
MEASUREMENTS (in mm). Wing length 1.08, width 0.90; head length 0.17, width 0.45; antennal segments, scape 0.09, pedicel 0.06, flagellomeres 1–3: 0.10; palpal segments 1: 0.03, 2: 0.06, 3: 0.05, 4: 0.03.
HEAD. About 2 × as wide as long; eye bridge contiguous, eye bridge with three facet rows; no enlarged alveoli on postocular area (Fig. 4A); interocular suture appears absent. Antenna with scape about same width as its length, asymmetrical; pedicel spherical, about same width as its length; flagellomeres posterior to 4 lost in all examined specimens, 1–4 fusiform, flagellomeres without darkened patch of sensilla; ascoids absent in examined material; frontal alveoli patch quadrate; mouthparts reduced, not extending beyond margin of head. Palpal segments short and sclerotized, apical segment not corrugated; not extending more than half of flagellomere 2, palpal proportions 1.0:2.0:1.6:1.0.
THORAX. Without allurement organs; wing length about 2 × its width, hyaline, with alveoli on entire surface (Fig. 4B); Sc vein almost straight, ending at origin of R 5, fork of R 2+3 slightly basal to M 1+2, R 2+3 joining R 4, wing apex rounded, R 5 ending slightly below apex.
TERMINALIA (Fig. 4E–G). Hypandrium very narrow, plat-like, and V-shaped; gonocoxites about same length as gonostyli, longer than wide, gonocoxites joining in middle, and together giving origin to semi-sclerotized parameral sheath protruding beyond aedeagus, covering aedeagus only on dorsal surface (see Figs 3E, 4E, G); gonostyli narrow, outwardly curved; ejaculatory apodeme about 3 × as long as aedeagus, narrow but broadening towards anterior end, aedeagus curved, with claw-shaped and heavily sclerotized paramere; aedeagal sclerites apparently absent; epandrium about 4 × as wide as long, concave on posterior margin; hypopods elongate, longer than epandrium, curved and tapering towards apex, apex of hypopods with single tenaculum with crowned apex. Epiproct very wide, tongue-shaped with rounded margin, whole surface covered in small setulae.
Female
Unknown.
Distribution
Costa Rica and Ecuador.
Genetics
The holotype was successfully sequenced for COI, GenBank accession number OQ706370.
description: Published as part of Jaume-Schinkel, Santiago & Kvifte, Gunnar Mikalsen, 2024, Revision of the genus Eugenys Quate, 1996 (Diptera: Psychodidae), with the description of three new species, pp. 81-100 in European Journal of Taxonomy 935 on pages 85-89, DOI: 10.5852/ejt.2024.935.2547, http://zenodo.org/record/11284619