Pelecorhynchus vulpes (Macquart)

Pelecorhynchus vulpes (Macquart) View in CoL

( Figs. 1-3 View Figures 1 View Figures 2 View Figure 3 )

Pangonia vulpes Macquart, 1850: 327-328 .

Pelecorhynchus aurantiacus Ricardo, 1900: 103 View in CoL (description of female), pI. i, fig. 2; Ricardo, 1910: 403 (in key), 409 (comments).

Pelecorhynchus vulpes (Macquart) View in CoL . Surcouf, 1921: 222 (in key); Coenura vulpes (Macquart) , Enderlein, 1925: 262 (list); Kröber, 1930a: 152 (in key), 152-153 (redescription of female); Kröber, 1930b: 114 (in key), 114-115 (redescription of female).

Material examined: Holotype specimen MNHN-ED-ED7515 (http://coldb.mnhn.fr/catalognumber/ mnhn/ed/ed7515). Chile 1 male, M. Gay coll. (by photography) ( Fig. 1A View Figures 1 ). Región de La Araucanía: Malleco Province: 1 male Nahuelbuta, 12.XII.1977, J. Jiménez coll. Región de Los Ríos: Valdivia Province : 1 male Isla Teja, 12.XII.2022, L.A. García coll. (all deposited in the insect collection of the Instituto de Entomología , Universidad Metropolitana, Chile). Diagnosis: Body color orange-rufous ( Fig. 1B View Figures 1 ). Eyes bare. Ocellar triangle with sparse, short setulae on the vertex ( Fig. 1C View Figures 1 ). First flagellomere rounded laterally, gradually tapered ( Fig. 1D View Figures 1 ). Maxillary palp spatulate with abundant long orange-rufous setulae. Scutum orange-rufous bearing abundant short orange-rufous setulae( Fig.1B View Figures 1 ). Pleura pruinose brown with long orange-rufous setulae; anepimeron with long white setulae ( Fig. 1D View Figures 1 ). Legs orange-rufous. Wings hyaline ( Fig. 1B View Figures 1 ). Abdomen orange-rufous dorsally,with concolorous setulae on all tergites ( Fig. 1B View Figures 1 ). Gonostylus subtriangular, lateral lobe straight, pointed ( Fig. 2B View Figures 2 ). Parameral sheet hooks short, upturned, shorter than medial lobe of gonostylus ( Fig. 2C View Figures 2 ).

Redescription (Holotype m)

Male: Length 18.5 mm, wing length 16.5 mm. Body col- or orange-rufous ( Fig. 1B View Figures 1 ). Head. Head wider than thorax. Eyes brownish, bare, all facets of equal size ( Fig. 1C View Figures 1 ). Ocellar triangle and ocelli developed. Vertex pruinose brown with short brown setulae ( Fig. 1C View Figures 1 ). Face inflated, convex, brown, with orange-rufous setulae ( Fig. 1D View Figures 1 ). Antennal scape brown with abundant long brown setulae; scape 2X length of pedicel, subquadrate; pedicel brown, bearing shorter setulae. First flagellomere orange, round- ed laterally, gradually tapered, with eight flagellomeres ( Fig. 1D View Figures 1 ). Maxillary palpus pruinose orange-rufous, onethird of head height; first segment rounded, with long orange-rufous setulae; second segment 3X length of first, spatulate,with abundant long orange-rufous setulae.Proboscis brown with yellow-black setulae; labellum large, fleshy, one-half head height ( Fig. 1D View Figures 1 ). Thorax. Scutum orange-rufous, bearing abundant long orange-rufous setulae ( Fig. 1B View Figures 1 ). Postpronotal lobes concolorous. Scutellum orange-rufous with long orange-rufous setulae on distal margin ( Fig. 1B View Figures 1 ). Pleura pruinose brown with long orange-rufous setulae ( Fig. 1D View Figures 1 ); anepisternum with long orange-rufous setulae; katepisternum and katatergite with long orange-rufous setulae; anepimeron with long white setulae. Legs orange-rufous, coxae with long orange-rufous setulae, femora with long orange-rufous setulae; tibiae concolorous and more setulose than femora, setulae orange-rufous; remaining leg segments with short orange-rufous setulae( Fig.1D View Figures 1 ).Wing hyaline ( Fig.1D View Figures 1 ); Sc and R₁ well separated at wing margin; R₂ + ₃ and R₄ parallel; curvature R₄ at base forming an angle less than 90°;R₅ and M₁ parallel; M₁ and M₂ straight, slightly divergent; M₃ and M₄ slightly divergent; CuA and CuP convergent, distal part of CuP straight; costal cell orange; subcostal cell hyaline; r₂ + ₃ hyaline; discal cell hyaline; cua closed. Basicosta with microtrichia.Halterreddish.Squamaeconcolorouswithwing base. Upper calypteres yellowish, lower calypteres lighter in color. Abdomen. Suboval, orange-rufous, tergites 2-7 with orange-rufous setulae dorsally, longest on posterior margins ( Fig. 1B View Figures 1 ). Sternites with shorter orange-rufous setulae. Terminalia. Gonocoxite developed, narrow, curved, apically rounded, with setulae (length = 1.37 mm, maximum width = 1.83 mm) ( Fig. 2A View Figures 2 ); gonocoxal apodeme extending well beyond anterior margin of hypandrium (length = 0.9 mm),lateral ejaculatory process short- er (length = 0.75 mm) ( Fig. 2A View Figures 2 ). Gonostylus subtriangular, lateral lobe straight, pointed (length = 0.15 mm) ( Fig. 2B View Figures 2 ); medial lobe rounded. In dorsal view, aedeagus short and narrow, shorter than length of gonocoxite; ejaculatory apodeme elongated (length = 1.1 mm) ( Fig. 2C View Figures 2 ); parameral sheet hooks short, heavily chitinized, upturned, and spaced between them, shorter than medial lobe of gonostylus (length = 0.15 mm, maximum width = 3.0 mm) ( Fig. 2C View Figures 2 ); spines of hooks of parameral sheets absent. Cerci attached directly to epandrium, one-segmented and prominent, lobate, apically rounded,with abundant small setulae (length = 2.1 mm, maximum width = 2.3 mm) ( Fig. 2D View Figures 2 ). Hypoproct about as long as wide, much longer than more dorsally situated cerci; posterior margin with a broad, shallow,V-shaped emargination (length = 2.0 mm, maximum width = 2.2 mm) ( Fig. 2D View Figures 2 ). Epandrium large, rectangular, strongly arched, with very long lateral setae ( Fig. 2E View Figures 2 ).

Remarks: The male terminalia of P. vulpes shows similarities to some Australian species, such as P. albolineatus Hardy , P. fascipennis Mackerras & Fuller P. kippsi Mackerras & Fuller , and P. nigripennis Ricardo , particularly in the shape of the gonostylus (pointed at apex and abruptly expanded at base) and in the development and orientation of the hooks of the aedeagus ( Mackerras & Fuller, 1942, Nagatomi, 1984).The genitalia of P.vulpes does not exhibit any morphological similarity with the other species of Chilean distribution, which are currently included in the genus Coenura ( González et al., 2023) .

Geographic distribution: Chile (Región Metropolitana de Santiago to Región de Los Ríos) ( Fig. 3 View Figure 3 ).