Leucophora chancani Ramírez-Mora & Patitucci, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5707.1.1 |
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publication LSID |
lsid:zoobank.org:pub:FF22D63F-6620-46F6-8791-1939A751391A |
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persistent identifier |
https://treatment.plazi.org/id/03AB754C-FFAF-E760-5385-FC4D49E5F9B5 |
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treatment provided by |
Plazi |
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scientific name |
Leucophora chancani Ramírez-Mora & Patitucci |
| status |
sp. nov. |
Leucophora chancani Ramírez-Mora & Patitucci sp. nov.
https://zoobank.org/NomenclaturalActs/d2431508-81d1-4b8e-a0a2-3d6ff503c29d
Figs. 19–21 View FIGURE 19 View FIGURE 20 View FIGURE 21
Diagnosis. Leucophora chancani sp. nov. can be differentiated from its congeners by the following combination of characters: three longitudinal brown vittae narrow, the central one not extending over the scutellum, cercal plate large and with long lateral setae, processes of sternite 5 with very long setae on outer lateral margins, pregonite with two setae, free paraphallic processes long and papillate dorsally.
Material examined. Holotype 1 ♂ ( MACN): “ARG., Córdoba, / Chancaní , X-1990, / J. Genise, J. Farina / P. Hazeldine [white label, printed]”; “Polinizador/ de Prosopis [White label, printed]”; “ MACN _En / 36257 [white label, printed]”; “MR 1414 [white label, printed]”; “ Holotype ♂ / Leucophora / chancani [red label, printed]”.
Description
Male ( Figs. 19–21 View FIGURE 19 View FIGURE 20 View FIGURE 21 )
Body length 10.1 mm, wing length 7.7 mm.
Coloration ( Fig. 19 View FIGURE 19 ). Head black to dark brown, with light grey pruinosity; frontal vitta black with whitish pruinosity ( Fig. 19B View FIGURE 19 ). Fronto-orbital plate, parafacialia, genae and face with silvery white pruinosity; parafacialia in profile with a wide shifting black patch from level of insertion of antennae to level of tip of postpedicel ( Fig. 19C View FIGURE 19 ); genae with a dark brown patch from the vibrissal angle to almost the lower margin of the eye and extending towards the posterior margin of eye. Antennae black; pedicel with lower and inner margins brown to dark brown; arista brown with darker base. Prementum dark brown to black. Palpi yellowish brown. Thorax black with whitish grey pruinosity, with three narrow brown longitudinal vittae ( Fig. 19D View FIGURE 19 ), central vitta filling the space between the acrostichal setae and not extending over the scutellum, lateral vittae filling the space between the posthumeral and supra-alar seta and following the line of the intralar postsutural setae ( Figs. 19A, D View FIGURE 19 ). Dorsocentral setae with light brown base. Pleura brown without evident patch ( Fig. D19A View FIGURE 19 ). Legs brown. Coxa and femora densely covered with light grey pruinosity. Femora with darker on dorsal surface. Tarsomere slightly darker. Pulvilli brown. Wing membrane hyaline. Veins brown, yellowish at base. Calypters whitish. Halteres light brown with darker base. Abdomen black anteriorly to brown posteriorly, with a narrow brown longitudinal vitta. Posterior margin of tergites brown. Marginal and lateral marginal setae with dark brown bases ( Fig. 19A View FIGURE 19 ). Posterior margin of tergite 5, sternite 5, syntergoesternite 7+8, epandrium, surstylus, and cerci yellowish.
Head. Fronto-orbital plate at the narrowest point 1x width of anterior ocellus, much widening anteriorly, with minute scattered setulae; frontal vitta at narrowest point 1.5x width of anterior ocellus, widening towards lunule; eyes separated at narrowest point 3.5x width of anterior ocellus ( Fig. 19B View FIGURE 19 ). 6 pairs of fr s ( Fig. 19C View FIGURE 19 ). infr s short. oc s as long as the longest fr s; ocellar triangle with 2 additional pairs of setulae; poc s, shorter than the oc s. i vt s the longest on head, reclinate; o vt s less than the half the length the i vt s, slightly proclinate. Postpedicel 2.1x the pedicel length; arista 1.9x the postpedicel length, plumose, longest hairs 1.4x the postpedicel width. Parafacials 0.5x width of eye. Genae below lowest point of eye margin 0.3x eye height ( Fig. 19C View FIGURE 19 ). Prementum 0.5x head height. Palpus 0.4x as long as head height, filiform with a slightly acute tip.
Thorax. Chaetotaxy: 5 pairs of psut acr s, prescutelar pair slightly longer than the longest presut acr s ( Fig. 19D View FIGURE 19 ). Prealar seta present. 5 anepst s. 2+2 kepst s, lower anterior less developed ( Fig. 19A View FIGURE 19 ).
Legs. Fore femur with a row of fine av setulae on basal half. Mid femur with 6 strong pv setae on basal half and 2 apical setae; a row of a setae scarcely longer than surrounding setulae on basal half and 1 subapical seta; 2 p setae. Mid tibia with 1 ad and pd setae; 2 p setae. Hind femur with a complete row of av and ad setae; 2 subapical d setae, 1 subapical p setae, a row of pv setae on basal half and 3 subapical setae. Hind tibia with 3 av, ad, and p setae; 2 pd setae.
Abdomen. Lateral marginal setae strong ( Figs. 19A View FIGURE 19 ). Sternite 1 slightly more than 2x wider than long, setulose on posterolateral margin. Sternite 2 less than 2x longer than wide, slightly tapered posteriorly, setulose, longer setae on posterolateral margins. Sternite 3 slightly longer than wide, with lateral margins slightly rounded, setulose, longer setae on posterior half. Sternite 4 slightly longer than wide, strongly tapered anteriorly, setulose, longer setae towards posterolateral margins. Sternite 5 ( Fig. 20A View FIGURE 20 ) 1.2x longer than wide, anteriorly narrowed, anterior margin notches medially; processes moderately wide, parallel sided distally, apex rounded, inner margin densely covered with long and thin setulae, basally the setulae are directed posteriorly, distal setulae directed inwards, outer surface with very long setae directed posteriorly, becoming longer distally, longest setae almost as long as sternite 5.
Terminalia . Surstylus curved basally and slightly narrow, apically tapered with rounded apex, distal half with sensilla ( Fig. 20B View FIGURE 20 ); in profile slightly sinuous, tapered towards apex ( Fig. 20C View FIGURE 20 ). Cercal plate about 1.7x longer than wide, slightly more than 0.5x the surstylus length and tapered distally, with lateral margins sinuous, notched tip; in profile with dorsal surface slightly curved with rounded tip; surface strongly setulose, strong and long setae towards lateral margins, longest setae longer than cercal plate length. Pregonite ( Figs. 20E View FIGURE 20 ; 21A, B View FIGURE 21 ) 2x longer than wide, about 0.5x the postgonite length, finger-like shaped, with 2 long setae, 1 on middle dorsal surface (seta almost 2x longer than pregonite), 1 seta on distal margin (slightly more than 3x the pregonite length), without sensilla. Postgonite 2x longer than wide, curved and very narrow basally, with acute and narrow apex, seta absent, with sensilla on middle third ( Fig. 21B View FIGURE 21 ). Phallapodeme ( Fig. 20D View FIGURE 20 ; 21A View FIGURE 21 ) in profile parallel sided on basal half, curved and acute basally, expanded on distal half, unpigmented on margins; epiphallus with rounded apex and slightly constricted preapically; distiphallus ( Figs. 20D, F View FIGURE 20 ; 21A View FIGURE 21 ) in profile curved towards middle, with dorsal sclerotization straight and tapered distally, with long free paraphallic processes arising at middle ( Figs. 20F View FIGURE 20 ; 21A View FIGURE 21 ), divergent and basally curved, dorsal margin of processes serrated at middle, apically acute ( Fig. 21C, D View FIGURE 21 ); acrophallus unpigmented wide basally, in dorsal and in profile view trump-shaped ( Figs. 20D View FIGURE 20 ; 21A View FIGURE 21 ).
Female. Unknown.
Remarks. In external appearance and the structure of the distiphallus L. chancani sp. nov., it resembles those in L. tacuil sp. nov., sharing the dorsally serrated (papillated) free paraphallic processes, but differs in having dark brown to black pedicel and postpedicel, and the almost black mark on parafacialia in L. chancani sp. nov., as well as the position of the 2 setae of pregonite directed in the same direction, also by the absence of seta on postgonite
Etymology. The species’s epithet refers to the location “Chancaní”, where the holotype was collected.
Distribution. Neotropical: ARGENTINA ( Córdoba) ( Fig. 54A View FIGURE 54 ).
| MACN |
Museo Argentino de Ciencias Naturales Bernardino Rivadavia |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.