Neohybos rostratus Ale-Rocha, 2016, sp. nov.
Creators: name: Ale-Rocha, Rosaly
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Hybotidae
Neohybos
Neohybos rostratus

description: Neohybos rostratus sp. nov.   
(Figs. 16–20, 46, 53)  
Diagnosis. Thorax black except for yellow spot on postpronotal lobe and postalar callus, anepisternum yellowish on upper half; scutum shiny with brown pruinescence on lateral and prescutellar disc; one posterior dc pair of poorly developed setae. Coxae pale brown, trochanters yellow, fore and mid femora brown; hind femur yellow basally, brown to black medially and yellow apically; fore and mid tibiae yellow, hind tibia yellow on basal third and becoming dark brown toward apex; fore and mid tarsomeres 1–2 yellow, all tarsomeres 3–5 dark brown, hind tarsus brown except tarsomere 1 yellow on basal half. Wing slightly brownish, stigma brown. Hypandrium slender with median long proboscis-like lobe bearing several long thin basal setae; phallus long and slender bearing robust distal spines.  
 Description. Holotype male (QCAZ) (Fig. 46). Body: 5.4 mm. Wing: 5.0 mm. Head. Face narrowly dichoptic, black and shorter than frons. Ocellar setae thin, parallel and oriented upward. Postcranium clothed in dense brown pruinescence; postocular setae elongate; occipital setae short and uniserial. Thorax black except for yellow spot on postpronotal lobe and postalar callus, anepisternum yellowish on upper half; scutum entirely shiny with discreet bluish metallic shine, pruinescence brown on lateral and prescutellar disc. Pleura covered by dense brown pruinescence. Setae black; acr and dc setae uniserial, sparse, very thin and short; ial and spal setae short, sparse; 2 npl setae, as long as apical scutellar pair; pal seta developed, slightly shorter than npl seta; one posterior dc pair poorly developed. Scutellum with 6 pairs of setae: one apical pair long, robust, widely separated and divergent; 5 lateral slender pairs, shorter than apical pair. Legs with pale-brown coxae, yellow trochanters, and fore and mid femora brown; hind femur yellow basally, brown to black medially and yellow apically; fore and mid tibiae yellow, hind tibia yellow on basal third and becoming dark brown toward apex; fore and mid tarsomeres 1–2 yellow, all tarsomeres 3–5 dark brown, hind tarsus brown, except tarsomere 1 yellow on basal half. Hind femur slightly thickened toward apex, claviform, clothed in sparse, thin, pale-brown setae; hind tibia nearly straight, cylindrical, setulae brown. Fore tibia with 1A short preapical seta and 1P elongate seta, reaching mid-length of tarsomere 1. Fore tarsomere with 1A elongate seta and 1P preapical, more robust seta. Mid tibia with 3AD more robust, short and strong setae on basal half, and 1P long apical seta reaching apex of tarsomere 1. Mid tarsomere 1 with 1 long and robust preapical AD seta, 1 elongate sub-basal V seta reaching apex of tarsomere 1. Hind trochanter with 2 robust, spine-like setae. Hind femur (Fig. 53) with 2D setae on distal fourth; 1A seta on distal third; 10AV spine-like, elongate setae; 17 V spine-like and short setae with protuberant base, the five distalmost reduced to short robust spines; PV series with 5 spine-like setae on distal third and 2 sub-basal setae. First four tarsomeres with 1A short and robust seta at base. Hind tibia lacking strong setae. Wing narrow, slightly brownish, stigma brown; costal cell narrow; R 4+5 and M 1 slightly convergent apically. Abdomen black, shiny, with brown pruinescence on tergite 1, base of tergites 2 and 8 and very sparse pruinescence on sternites; about 3.4 times longer than length of thorax. Setulae yellow, thin, very sparse, short and inconspicuous dorsally; long setae on tergite 1, on lateral of tergite 2 and on distal margin of sternite 8. Terminalia (Figs. 16–20) elongate and slender. Hypandrium slender with median long proboscis-like lobe bearing several long thin basal setae on right margin and long setae along left margin. Epandrium elongate; right lamella bifid distally; left lamella curved inward distally. Postgonite very slender. Phallus long and slender bearing robust distal spines.   
Female. Unknown.  
Type material. Holotype male (QCAZ). ECUADOR. Zamora Chinchipe, Estación Cientifica San Francisco [Reserva Biológica San Francisco], 0713956-9560588, Canal trail 1956 m, Varredura, 12–17/iv/2015, A. Plant & J. Camara Leg. Condition: good except by postpedicel and stylus lost; terminalia dissected, stored within a microvial with glycerin.  
Geographical distribution. Ecuador (Zamora Chinchipe).  
 Etymology. From the Latin rostrum = beak, snout, in reference to the elongate snout-like lobe on distal margin of hypandrium.   
 Comments. In the external morphology, this species is similar to N. fuscipes Ale-Rocha, 2007, but can be distinguished from it by the shape of male terminalia. In N. rostratus sp. nov., the hypandrium is slender with median long proboscis-like lobe bearing several long thin setae, right epandrial lamella bifid distally, left lamella curved inward distally, phallus slender bearing robust distal spines. In N. fuscipes, the hypandrium is broad with three elongate lobes, right epandrial lamella truncate distally, left epandrial lamella not curved inward distally, phallus robust with brush of numerous, long and stout ventral bristles at distal third.
description: Published as part of Ale-Rocha, Rosaly, 2016, Species of Hybotinae from Podocarpus National Park, Ecuador (Diptera, Empidoidea, Hybotidae), pp. 189-205 in Revista Brasileira de Entomologia 60 (3) on page 195, DOI: 10.1016/j.rbe.2016.04.004, http://zenodo.org/record/13195178