Fannia iguaque, Grisales, Diana, Wolff, Marta & De, Claudio J. B., 2012

Grisales, Diana, Wolff, Marta & De, Claudio J. B., 2012, Neotropical Fanniidae (Insecta, Diptera): new species of Fannia from Colombia, Zootaxa 3591, pp. 1-46 : 27-28

publication ID	https://doi.org/ 10.5281/zenodo.213946
DOI	https://doi.org/10.5281/zenodo.6175059
persistent identifier	https://treatment.plazi.org/id/03BE87F8-522B-D432-C094-251EFAD9F83D
treatment provided by	Plazi
scientific name	Fannia iguaque
status	sp. nov.

Treatment

Fannia iguaque View in CoL sp. nov.

( Figs. 8 View FIGURES 1 – 12 , 27 View FIGURES 20 – 37 , 45 View FIGURES 38 – 55 , 63 View FIGURES 56 – 73 , 81 View FIGURES 74 – 82 , 99 View FIGURES 92 – 100 , 117 View FIGURES 110 – 118 , 129 View FIGURES 128 – 131 )

Diagnosis. these characters apply only to the male sex. Calypters brownish with margin dark brown; fore tarsomeres 3–5 flattened, widened and dark; hind femur curved, ventral and posterior surfaces with pre-apical protuberance, pronounced on p, 1 row of filiform av, 1 strong seta on edge of apical third and 1 pre-apical, ventral surface setulose, with weak setae that increase in length on protuberance of posteroventral surface.

Description. Holotype male: body length 6 mm; wing length 5.4 mm.

Head: eye densely setulose ( Fig. 8 View FIGURES 1 – 12 ). Frontal vitta velvety, brownish-black pollinose on margin. Interocular space 0.2 mm. Fr 12-13. Ocellar triangle black; oc proclinate and developed, with 5 less developed setulae on ocellar area. Poc divergent. Fronto-orbital plate and parafacial black, with grey-yellowish pollinosity. Parafacial bare. Gena black-brownish pollinose. Lunule black. Scape black, with 3 short setae, reaching up to pedicel. Pedicel black with dorsal setae developed. Postpedicel black-brownish pilose, 1.5 times the length of pedicel. Arista black pubescent. Palpus black and filiform.

Thorax: black, weakly brownish pollinose; scutum without vittae. Acr 2–3:3 not arranged in rows. Dc 2:3, long. Postpronotum with 2 developed setae and 3 smaller ones. Two pra, seta near suture longer. Proepimeral area setulose. Pre-basal scutellar area with less developed ground setulae. Subapical scutellar setae 1 pair. Discal scutellar setae 1 pair. Lateral scutellar setae present.

Wing: brownish, with the upper third between C vein and vein R2+3, cells br, bm and cup darker. Calypters brownish with margin dark brown. Haltere brown with stem and base lighter in colour.

Legs: black with tarsi black and pulvilli brownish. Fore femur with 1 row of long d; 1 row of weak av on basal third; ventral surface bare; 1 row of long pv, weak and with curved apices, on apical half more robust and with straight apices; posterior surface setulose, with long and weak setae with curved apices. Fore tibia with 1 strong pre-apical d; anterodorsal surface with setae on edge of apical third and on pre-apex; 1 short apical v; 1 pre-apical pv; 1 p on edge of apical third. Fore tarsus with 1 strong v followed by a thin seta on first tarsomere; 1 lateral v on apex of tarsomere; tarsomeres 3–5 flattened and widened ( Fig. 129 View FIGURES 128 – 131 ). Mid femur on pre-apical ventral surface constricted; 1 row of short ad ending in 3 long pre-apical setae; 1 row of strong av that decrease in length and become sparse towards apex; 1 row of v with hooked apices on middle third; 1 row of long pv with hooked apices, setae becoming shorter towards apex, 1 short and strong pre-apical with hooked apex; 1 row of long and weak p with curved apices, 4 longer setae with straight apices on apical third. Mid tibia on basal ventral half with a constriction, more pronounced pre-basally and medially, median ventral surface densely setulose on apical half, 1 long and strong apical seta; 1 developed pre-apical ad; 1 developed a on edge of apical third and 2 developed apicals, one long and one short; 1 pre-apical p; 1 pd on edge of apical third and 1 pre-apical. Hind coxa on posterior margin bare. Hind femur curved; ventral surface with pre-apical protuberance; posterior surface with conspicuous protuberance ( Fig. 45 View FIGURES 38 – 55 ); 1 row of a, from apical half 5 setae run towards dorsal surface; 1 row of filiform av, 1 strong seta on edge of apical third, 1 strong pre-apical ( Fig. 27 View FIGURES 20 – 37 ); ventral surface setulose, with weak setae on posteroventral surface that become longer on pre-apical protuberance ( Fig. 45 View FIGURES 38 – 55 ). Hind tibia with 1 median strongly developed d and 1 shorter pre-apical; 1 median ad, long and developed, on the same level as d; 1 short pre-apical a; 2 median av and 1 apical ( Fig. 27 View FIGURES 20 – 37 ); 1 short apical pv.

Abdomen: elongate, in general with developed setae, black with syntergite 1+2, tergites 3 and 4 basally translucent-brown-yellowish, weakly greyish pollinose. Syntergite 1+2 with a set of long lateral setae; tergites 3 and 4 with 2 pairs of lateral setae and 2 pairs of differentiated median lateral setae; tergite 5 with 1 pair of lateral setae. Sternite 1 densely setulose. Sternite 5 as in Fig. 63 View FIGURES 56 – 73 . Terminalia ( Figs. 81 View FIGURES 74 – 82 , 99 View FIGURES 92 – 100 ): epandrium wider than long, with weak setae up to basal half; cercal plate elongate apically and with median sclerotized dilatation forming a keel, with short weak setae on basal half and long weak setae on apical half; surstylus articulated with epandrium, with inner basal projections developed and sclerotized, curved apically and with short and weak setae on inner surface; bacilliform process absent; hypandrium and associated structures as in Fig. 117 View FIGURES 110 – 118 .

Female: unknown.

Variation: specimens may be dark brown.

Biology. according to label data, Fannia iguaque sp. nov. is associated with cold ecosystems of the high Andean and Páramo forests (2400–3880 m), found both at the Parque Nacional Natural (PNN) Chingaza and the Santuario de Flora y Fauna (SFF) Iguaque , located on the Eastern Cordillera of the Colombian Andean System. Those ecosystems are characterized by abundance of water bodies, presence of oak, “frailejón ( Asteraceae , Espeletia ), mosses, lichens, and other types of short trees (Parques Nacionales Naturales 2002).

Comments. Fannia iguaque sp. nov. has the fore tarsi with modified tarsomeres, a diagnostic character of the anthracina group (Pont & de Carvalho 1994). However, F. iguaque differs from the species of this group by having the modified tarsomeres dark, not white, and by the absence of a spiralled bacilliform process. In F. iguaque the surstylus has inner basal projections that are sclerotized and developed, and the cercal plate is elongate apically, a character in common with the hirticeps group ( Chillcott 1961) (these characters apply only to the male sex). It is not possible to include this species in the Fannia groups proposed by Chillcott (1961) or Albuquerque et al. (1981), until it is included in a cladistic analysis.

Etymology. name in apposition. The species epithet refers to the Santuario de Flora y Fauna Iguaque , typelocality of the species. The Laguna de Iguaque , located on this Páramo, was one of the sacred sites of the Pre- Columbian Muisca.

Type material. Holotype male (IAvH).CO [ Colombia]. Cundinamarca. P.N.N [Parque Nacional Natural] Chingaza \ Charrascales. 4˚31’N 73˚45W\ 2990 m. Malaise. 11–I, 8–II. 2002 \ E. Raigoso\ Leg. M. 3021. IAvH. Paratype: CO [ Colombia]. Boyacá\ S.F.F. [Santuário de Flora y Fauna] Iguaque . Cabaña Carrizal\ 5˚25’N 73˚27’W\ 2850 m.s.n.m\ Malaise\ Mar 27 / Abril 16.2001\ 1516. IAvH (1 male, IAvH). The holotype does not have the right wing. The remaining of the specimen is in good condition.

Distribution. Colombia: departments of Cundinamarca and Boyacá (Andean region, Eastern Cordillera).