Eugenys micra, Jaume-Schinkel & Kvifte, 2024

Jaume-Schinkel, Santiago & Kvifte, Gunnar Mikalsen, 2024, Revision of the genus Eugenys Quate, 1996 (Diptera: Psychodidae), with the description of three new species, European Journal of Taxonomy 935, pp. 81-100 : 85-89

publication ID

https://doi.org/ 10.5852/ejt.2024.935.2547

publication LSID

lsid:zoobank.org:pub:C6FAFB3A-1B4B-4245-A424-0E4EDDA8AF05

DOI

https://doi.org/10.5281/zenodo.11392139

persistent identifier

https://treatment.plazi.org/id/BB4F87F6-FFCA-F528-FD2D-FA7FFB62F8CA

treatment provided by

Plazi

scientific name

Eugenys micra
status

sp. nov.

Eugenys micra sp. nov.

urn:lsid:zoobank.org:act:DDCD52D2-BE5D-4E0F-B3DC-BABEF28BEFDB

Figs 1 View Fig , 3E View Fig , 4 View Fig , 5A View Fig

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. GoogleMaps

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 GoogleMaps 1 ♂; same collection data as for preceding; INBIO-CRI001472884 ; INBIO GoogleMaps 1 ♂; same collection data as for preceding; INBIO-CRI001472896 ; INBIO GoogleMaps .

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 View Fig ); 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 View Fig ); 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 View Fig ). 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 View Fig , 4E, G View Fig ); 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.

LACM

Natural History Museum of Los Angeles County

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Psychodidae

Genus

Eugenys

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