Regasilus inti Sánchez 2020, sp. nov.
Creators: name: Sánchez, Pável
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Regasilus
Regasilus inti

description: Regasilus inti sp. nov.
(Figs. 14–15)
Diagnosis. A species almost fully covered with golden tomentum; femora black. Unlike its congeners, in this species the antepronotal macrosetae are stout and black. Besides, in males, the ejaculatory apodeme is quite short (Fig. 14D), and the posterior excision of hypandrium is very deep (Fig. 14F). In the female genitalia, the common duct is long, though not as long as the arms of furca (Fig. 15C).
Description of male holotype. (Fig. 14A). Lengths. Body: 16 mm; wing: 11 mm.
Head. Antenna black, scape and pedicel black setose ventrally, yellowish dorsally, scape about twice as long as pedicel; postpedicel similar in length to scape and pedicel together, about 10 times the length of first article of antennal stylus and twice the length of second article; face, frons and vertex golden tomentose; ocellar setae black, no longer than length of scape and pedicel together; mystacal macrosetae black in the upper face, yellowish bellow; proboscis, labium and palpus yellowish setose; postocular macrosetae black above and yellowish bellow; occiput golden tomentose, yellowish setose. Thorax. Dark brown, predominantly golden tomentose, except for silver tomentum diffused on posterior area of pleura, alongside the dark paramedial and lateral stripes on mesonotum. Chaetotaxy: Pronotum yellowish setose with 2–3 pairs of black macrosetae on antepronotum; postpronotal lobe with black and yellowish setae; mesonotum with black macrosetae, 2 notopleural, 2 supra-alar (alongside several long setae) and 2 postalar; dorsocentral and acrostichal setae black, short anteriorly and becoming longer and bristly posterior to transverse suture; scutellar disc with black and yellowish setae, relatively short, 2 apical scutellar black macrosetae; uppermost portion of anepisternum black and yellowish setose; katepisternum and anepimeron yellowish setose; katatergal macrosetae yellowish. Wing. Similar to R. apu sp. nov., halter yellowish. Leg. Coxae black, golden tomentose; all femora shining black; tibiae reddish brown; first tarsomeres concolorous with tibiae, then darkening towards the apex; claws and empodia dark brown, pulvilli yellowish. Chaetotaxy: Coxae and femora yellowish setose; femora and tibiae mainly with black macrosetae, absent on fore femur, although a stout dorsal black setae is present; mid femur with 5–6 macrosetae anteroventrally and 3 anteriorly; hind femur with 4 anterior, 10–11 anteroventral, 5–6 posteroventral, some of them weak, and dorsally 1 subapical on each side; fore tibia with 1 dorsal, basal, 4–5 posterodorsal, and 3 posteroventral, quite long; mid tibia with 1 anterodorsal, 2 dorsal, 3 posterior, 1–2 posteroventral and 3 anteroventral; hind tibia with 1 dorsal, 3 posterodorsal, 3 anterodorsal and 2 anteroventral. Abdomen. Dark brown, almost fully covered with golden tomentum, yellowish setose, setae longer on sides; sternites also golden tomentose and yellowish setose, except on eighth sternite, with an apical band of yellowish macrosetae. Terminalia (Fig. 14 B–C). Shining black; epandrium broad, subrectangular, mostly yellowish setose, except for some basal black setae dorsally; excision at posterior margin of hypandrium very deep, cup-like (Fig. 14F); gonocoxite subtriangular, yellowish setose on external margin (Fig. 14E); gonostylus slightly curved upwards; phallus somewhat flattened laterally, curving slightly upwards at apical third, ejaculatory apodeme quite short (Fig. 14D).
Female (Fig. 15A). Similar to male, except terminalia (Fig. 15B); spermathecae strongly attenuated apically, comma-shaped, situated on eighth abdominal segment; common duct about half the length of arms of furca, capsular ducts twice the length of expulsory ducts and one third the length of common duct (Fig. 15C).
Etymology. A masculine noun in apposition, given to Inti, the Quechua name for the sun, and the main god of the Inca Empire.
Holotype condition. Good. Detached terminalia placed in microvial with glycerin and pinned along with the specimen. As well as detached right wing.
Distribution (Fig. 20A). Peru; Marcapata district in the province of Quispicanchi, Cuzco.
Type material. Holotype. PERU, CU[Cuzco], Quispicanchi, Marcapata, Limacpunco, 2397 m, 13°33’32.1” S, 70°54’56.8” O 12.x.2017, M. Rodríguez & L. Pérez / HOLOTYPE Ƌ Regasilus inti Sánchez, 2020 (MUSM).
Paratypes: Same data as holotype (11Ƌ, 2♀) (MUSM).
Variation: In some specimens, the fork of R 4+5 has a stump vein, sometimes poorly defined.
description: Published as part of Sánchez, Pável, 2020, Eight new species of Regasilus Curran, 1931 (Diptera: Asilidae: Asilinae) from Peru, pp. 221-246 in Zootaxa 4894 (2) on pages 236-238, DOI: 10.11646/zootaxa.4894.2.3, http://zenodo.org/record/4315667