Pseudolycoriella porehu, Köhler, 2019

Köhler, Arne, 2019, The genus Pseudolycoriella Menzel & Mohrig, 1998 (Diptera, Sciaridae) in New Zealand, Zootaxa 4707 (1), pp. 1-69 : 26-28

Pseudolycoriella porehu sp. n.

( Fig. 19 )

urn:lsid:zoobank.org:act:NomenclaturalActs/ 0B09BE48-A529-4737-B03E-CF2ED15CFAF9

Material studied. Holotype male. New Zealand: South Island , Clutha , Catlins, Purakaunui Scenic Reserve, mixed podocarp/broadleaf/ Nothofagus forest, sweep net, 03.01.2002, leg. M. Jaschhof ( NZAC, SDEI-Dipt-0001394) . Paratypes: 4♂♂ same locality and same date as holotype (1x NZAC; 3x SDEI, SDEI-Dipt-0001485) .

Description. Male. Head. Head capsule brown. Eye bridge three facets wide, two facets at margin. Scape and pedicel concolourous or slightly paler than flagellomeres; fourth flagellomere 3.3–3.9 times longer than wide; necks of flagellomeres well differentiated; surface of flagellomeres rough, sparsely scattered with long setae arising from slight elevations, setae 1.5 times as long as flagellomere width; sensilla of two different lengths present, small ones and longer, curved sensilla. Maxillary palp long and three-segmented, first palpomere as long as third, second one shortest; first palpomere with an inconspicuous patch of sensilla and two to three bristles, one of these longer and more robust, located on the outer side. Prefrons and clypeus bulging. Thorax pale brown to brown, central parts brighter. Posterior pronotum bare. Anterior pronotum with three to five setae. Episternum 1 with four to seven setae. Mesonotum with five to six robust lateral bristles; row of dorsocentral bristles well developed. Scutellum with four robust bristles and several minor setae. Katepisternum as long as high, or slightly longer than high. Wing. Length 2.2–2.3 mm; width/length ratio 0.33–0.36. Membrane transparent and without macrotrichia, anal area weakly developed; all posterior veins distinct, stem of M weakest, apical fifth to apical third of R 5 with macrotrichia on ventral and dorsal side; bM and r-m bare; R 1 0.6–0.7 times as long as R; c/w ratio 0.52–0.61; r-m 0.7–0.9 as long as bM. Haltere short; knob as long as shaft. Legs pale brown, trochanter slightly darkened. Tibial organ surrounded by a circular border and wider than half width of tibial apex; tibial organ consists of a patch of several robust bristles arranged in a transverse band. Fore tibia without robust bristles among vestiture. Mid tibia with three to five robust bristles among vestiture, located anterioventrally and posterioventrally. Hind tibia with four to seven robust bristles organised in a longitudinal, posteriodorsal row; on posterior side of hind tibia five to six robust bristles among vestiture. All tibial spurs equal in length. Claws with robust teeth. Abdomen brown with dark setae. Hypopygium ( Fig. 19 ). Gonocoxites wider than long, basal inner side of gonocoxites widely separated. Gonostylus short, broad, and slightly curved; 2.0–2.3 times longer than wide, apex blunt with an inner cavity; two robust spines present, the dorsal one located on a basal lobe; one long whip-lash hair is located on the ventral apex of the gonostylus. Tegmen broader than long, apicolaterally with two strongly sclerotized lobes, apex roundish with a small membranous edge; parameral apodeme robust and short to medium long. Area of teeth with ten to 15 small teeth. Ejaculatory apodeme dark, broad, and of medium length; base of ejaculatory apodeme pale, branches broad and basally connected. Posterior portion of gonocoxal apodeme medium sized and brown. Anterior portion of gonocoxal apodeme long and broad.

Body size: 1.9–2.5 mm.

Female. Unknown.

Genetic distances. No genetic information available.

Etymology. Porehu is a Māori modifier and means mysterious. It was chosen as the epithet because the taxo- nomic rank of these specimens remained unclear to the author for a long time.

Distribution. New Zealand.

Discussion. See discussion paragraph for Psl. orite .

Figures

FIGURES 14–19. Pseudolycoriella bispina complex, hypopygia. 14. Pseudolycoriella bispina Mohrig. 15. Pseudolycoriella teo sp. n. 16. Pseudolycoriella puhihi sp. n. 17. Pseudolycoriella orite sp. n. 18. Pseudolycoriella mahanga sp. n. 19. Pseudolycoriella porehu sp. n. Abbreviation: ti = insertion of the tendon of the gonostylus adductor.