Roederiodes notialis Sinclair 2023, sp. nov.
Creators: name: Sinclair, Bradley J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Empididae
Roederiodes
Roederiodes notialis

description: Roederiodes notialis sp. nov.
(Figs 24, 31)
urn:lsid:zoobank.org:act: 473CA840-E09B-493B-9A59-5AB6CB414E66
Type material. HOLOTYPE ♁, labelled:“MEX: Baja Calif./ Sur, Sierra Laguna []/ La Laguna [23°34′N 110°00′W], 17 air/ mi ENE Todos/ Santos 6000′/ XII-12/18-1979/”; “ C.E. Griswold,/ Collector”; “HOLOTYPE/ Roederiodes / notialis Sinclair [red label]” (CAS). PARATYPE: USA. Arizona: Cochise Co., Chiricahua Mtns, SW Res. Stn [ca. 31.884, -109.205], 8 km W Portal, 1645 m, 21.viii.1985, PHA (1 ♁, USNM).
Recognition. This species is similar in colour to R. lawrencei, distinguished by the arista-like stylus twice length of the postpedicel, base of M 1 and M 2 with long coalescence, five distinct dorsocentral setae, prescutellar depression without pruinescence and clasping cercus arched and tapered apically.
Description. Wing length 2.6–2.7 mm. Male. Face and gena apparently without pubescence. Ocellar setae divergent, subequal to pprn; vertical seta as long as ocellar seta. Antenna with long stylus, twice as long as postpedicel; postpedicel ovate, shortly prolonged apically. Length of proboscis two-thirds head height.
Pleura pale brown without pruinescence; prescutellar depression with pale pruinescence; several acr, very short, extending beyond first pair of dc; 5 dc, distinct, increasing in length posteriorly; 1 pprn; 1 presut spal with several setulae; 2 npl; 0 psut spal; 1 pal; 2 sctl, longer than prescutellar dc and numerous setulae on disc and margin, outer marginal setulae nearly half length of apical seta; laterotergite with patch of setae; antepronotum with several setulae; lower proepisternum with pale setae.
Wing infuscate; cell dm pointed apically, with base of M 1 and M 2 coalesced basally for long distance, subequal in length to crossvein dm-m.
Legs with coxae and femora pale brown; coxae without bluish pruinescence. Hind tibia with distinct ventral setae, longer than half width of tibia.
Abdominal tergites pale brown, without bluish pruinescence; bearing short black setae. Terminalia (Fig. 24): Hypandrium slightly longer than epandrium, apex rounded; without setae. Phallus slightly curved; membranous distiphallus with pair of elongate lateral extensions (only left extension illustrated in Fig. 24), bearing short, apical sclerotized plates. Cercal plate with several long setae; clasping cercus arched, digitiform, tapered to narrow, rounded apex; stout, thickened setae along inner dorsal margin and longer, finer setae on inner basoapical face.
Female. Unknown.
Etymology. This species is named after the Greek notios (southern), in reference to the southern distribution in North America.
Distribution. This species is currently known from the Chiricahua Mountains in Arizona and the southern tip of Baja California (Mexico) (Fig. 31).
description: Published as part of Sinclair, Bradley J., 2023, Revision of New World species of Roederiodes Coquillett (Diptera: Empididae: Clinocerinae), pp. 336-364 in Zootaxa 5301 (3) on page 347, DOI: 10.11646/zootaxa.5301.3.2, http://zenodo.org/record/8030504