Fannia katios Grisales, Wolff & De, 2012, sp. nov.
Creators: name: Grisales, Diana
name: Wolff, Marta
name: De, Claudio J. B.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Fanniidae
Fannia
Fannia katios

description: Fannia katios sp. nov.
(Figs. 9, 10, 11, 28, 46, 64, 82, 100, 118, 133)
Diagnosis. these characters apply only to the male sex. Arista brown with base yellowish; scape brown with a apical margin yellowish; postpedicel yellow with apex and outer surface brownish-grey; palpus yellow with base brownish; scutum with weak and narrow median vitta, and two brown marks on intra-alar area; hind femur on ventral surface without pre-apical protuberance and with weak apical constriction, anterior and posterior surfaces swollen on basal third, 2 pre-apical av, apical seta longer, posterior surface on apical half bearing weak setae with hooked apices, setae increasing in length up to swollen area, not forming a tuft; abdomen with tergites 1–4 laterally translucent-yellow; abdomen brown trimaculate.
Description. Holotype male: body length 3 mm; wing length 3 mm.
Head: eye bare. Frontal vitta velvety brown, posterior area velvety black and greyish pilose centrally. Interocular space 0.12 mm. Fr 8–10. Ocellar triangle black; oc proclinate and developed, 3 less developed setulae on ocellar area. Poc converging. Fronto-orbital plate greyish pollinose, posterior area to eye margin black. Parafacial greyish pollinose and without short setae. Gena grey. Lunule brown. Scape brown with apical margin yellowish and 2 short setae. Pedicel yellow, golden pollinose, dorsal setae short. Postpedicel yellow with apex and outer surface brownish-grey, yellow pilosity and measuring 2 times the length of pedicel. Arista brown with base yellow and pubescent. Palpus yellow with base brownish and filiform
Thorax: grey pollinose, particularly on acr and dc areas; scutum with median vitta narrow and weak up to base of scutellum, two postsutural marks between intra–alar area and the second pair of dc, pre-sutural area with inconspicuous brown marks. Scutellum with basal, brownish mark, apex yellowish. Acr 3:4, not arranged in rows; dc 2:3, with postsutural dc setae forming an inverted cone. Postpronotum with 2 developed setae, 1 shorter. Posterior ia longer than weakly differentiated anterior seta. Pra 1, weakly differentiated and near spal. Proepimeral area with ground setulae. Pre-basal pre-scutellar seta absent, area with short setae. Subapical scutellar setae 1 pair. Discal scutellar setae 1 pair. Discal area with short setae. Lateral scutellar setae 2–4.
Wing: yellowish; R1 with weak dilatation on basal third. Calypters whitish. Haltere yellowish with base yellow.
Legs: brown; fore coxa brown-yellowish; fore and mid trochanter yellow; apex of fore femur and basal third of fore tibia yellow; apex of mid and hind femora and base and apex of tibiae yellow; tarsi darkened and pulvilli yellow-brownish. Fore femur on ventral surface bare; 1 row of short and strong d and pd setae; 1 row of thin and short p; pv short and sparse on basal half, ending in 7 developed pre-apical d setae. Fore tibia with 1 strong preapical d; 1 short apical v; 1 short apical pv. Fore tarsus with strong basal v on first tarsomere and 1–2 thin setae; tarsomere 1–3 with 1 thin and long apical-lateral v; tarsomere 5 slightly flattened with respect to the remaining tarsomeres and yellow apically. Mid femur weakly constricted on pre-apical ventral surface; 1 row of av that decrease in length and become scarce towards apex; two rows of unordered a ending in long and strong pre-apical setae; 1 row of short v with hooked apices on basal third; 1 row of strong pv with hooked apices; 1 row of long p with hooked apices, 4 apical most setae stronger; 1 row of short pd on basal third. Mid tibia with 1 ad on edge of apical third; 1 pre-apical av; 1 strong apical v; 1pre-apical d; 1 short median p; 1 short apical pv. Hind coxa with 1 seta on posterior margin. Hind femur on ventral surface without pre-apical protuberance, and weak apical constriction (Fig. 28); swollen on anterior and posterior surfaces and on median third; 2 pre-apical av, 1 longer apical seta (Fig. 28); ventral surface bare; 1 row of short ad on basal half; 2 developed pre-apical d; pd unordered on basal half, thin and with hooked apices; p weak with hooked apices on apical half that increase in length up to swollen area, not forming a tuft, last 2 setae with straight apices (Fig. 46). Tibia and hind tarsus missing.
Abdomen: yellowish with brown marks (Fig. 10), syntergite 1+2, tergites 3 and 4 with 2 brown lateral marks; tergites 3 and 4 with median vitta brown, expanded on apical margin of tergite, not reaching lateral area; syntergite 1+2, tergites 3 and 4 translucent-yellow, very pale; tergite 5 brown-yellowish pollinose. Syntergite 1+2, tergites 3–4 with developed marginal setae; tergite 5 with one pair of lateral setae. Sternite 1 bare. Sternite 5 as in Fig. 64. Terminalia (Figs. 82, 100): epandrium slightly wider than long, with weakly developed setae on basal half; cercal plate wide and concave, fused up to basal third and with 2 pointed apical projections, with short setae, most of which are straight, ground setulae scarce; surstylus long and articulated with epandrium, apex expanded ventrally and with many thin and short setae, inner basal margin setulose; bacilliform process spiralled and short, on apex of cercal plate; hypandrium and associated structures as in Fig. 118.
Female: similar to male, except: body length 2.9– 3.1 mm; wing 2–2.4 mm. Dichoptic (Fig. 9). Frontal vitta velvety brown up to ocellar triangle. Fr 8, converging. Upper orb reclinate and lower orb lateroclinate. Fro 1–2 rows unordered along plate, or unordered starting at first fr and up to lower orb. Setulae on ocellar triangle varying in position and number. Poc divergent. Fronto-orbital plate greyish pollinose. Gena grey-brownish. Scutum on acr and dc regions with weak pollinose vittae, some specimens with 3 differentiated and complete vittae. Acr 3–4:6–7. One weakly differentiated pra, in some specimens with a seta next to it on one side. One pre-basal scutellar seta. Haltere whitish or yellowish with base yellow. Mid femur with 1 row of short and uniform av; anterior surface setulose; 1 row of ad; 1 row of short p without hooked apices and ending in 3 strong apical setae; 1 row of pv on basal half that decrease in length towards apex. Mid tibia on anterior surface without seta on edge of apical third, 2 apical a, one long and one short, strong; 1 ad on border of basal third; 1 av on edge of apical third; 1 strong apical and 2 short pre-apical v; 3 short apical p. Hind femur with 1 row of short av, 2 apical long and sub equal in length; dorsal surface bare; posterior surface without a row of setae; 1 row of short, not uniform, unordered pv. Hind tibia with 2 short apical a; 3–4 av on basal third and 1 strong apical; 3 ad on basal third and 1 pre-apical; 1 median, long,and 1 shorter, pre-apical, d; 1 row of short pd that increase in length towards apex; posterior surface setulose, particularly on apical third; 1 apical pv; 1 apical v. Abdomen trimaculate, with brown marks (Fig. 11). Syntergite 1+2 brown, translucent-yellow; tergites 3–4 translucent-yellow, tergite 5 brown. Syntergite 1+2 with conspicuous lateral setae; tergites 3–4 with marginal lateral setae visible, not as developed as in the male. Terminalia (Fig. 133): cercus shorter and narrower than hypoproct, with long and sinuous setae on apex; hypoproct round and with apex pointed, with long and weak setae; sternite 8 reduced to two membranous plates with short setae and two thin, bare, more sclerotized basal plates; sternites 6 and 7 longer than wide and sternite 7 with apex round. Spermathecae 3, shape irregular, one reduced (Fig. 133).
Biology. according to label data, Fannia katios sp. nov. is associated with preserved areas of humid tropical forest, at Tapón del Darién, biogeographic province of Chocó (Morrone 2006) limited by Panama.
Comments. these characters apply only to the male sex. Fannia katios sp. nov. is similar to F. clavata Chillcott and F. grandis (group grandis) in the shape of the genitalia, particularly the wide and concave cercal plate, the two apical median projections, and the spiral-shaped bacilliform process. It is similar to F. grandis (Albuquerque et al. 1981) in the shape of the hypandrium and associated structures. Fannia katios also has characters of the benjamini group, such as antenna and palpus yellowish, thorax with vittae, base of scutellum brown, hind coxa with setulae, abdomen yellowish with median vitta triangular and lateral marks on tergites (Chillcott 1961). Until a cladistic analysis is performed it is not possible to establish to which species group F. k a t i o s belongs.
Etymology. name in apposition. The species epithet refers to the Parque Nacional Natural Los Katíos, typelocality of the species. The park was designated a Natural World Heritage area in 1994 by UNESCO. This area is important because it is located in the biogeographic region of Chocó, on the border with Colombia – Panama, which favours faunal interchange between Central and South America.
Type material. Holotype male (IAvH). CO [Colombia]. Chocó. P.N.N. [Parque Nacional Natural] Los Katíos. Centro\ administrativo Sautatá. Dentro Del\ Bosque.7˚51’N; 77˚8’W. 30 m. [metros] \ Malaise 2. 29.V. 13.VI. 2000\ P. López. Leg. M. 3755 IAvH. Paratype: CO [Colombia]. Chocó. P.N.N. [Parque Nacional Natural] Los Katíos. Centro\ administrativo Sautatá. Dentro del\ Bosque.7˚51’N; 77˚8’W. 30 m. [metros] \ Malaise 2. 29. V. 13.VI. 2000\ P. López. Leg. M. 3755 (3 Males, IAvH); idem\ Fuera de\ bosque\ idem\ Malaise 3. 13–29.VI.2003 \ idem. M. 3763 (4 Males, IAvH); idem\ Fuera del\ bosque\ Malaise 4. 29. V. 13. VI. 2003\ P. López. Leg. M. 3757 (1 male, IAvH). The holotype is missing the hind left leg and tibia and tarsus on its right side.
Distribution. Colombia: department of Chocó (Pacific region).
description: Published as part of Grisales, Diana, Wolff, Marta & De, Claudio J. B., 2012, Neotropical Fanniidae (Insecta, Diptera): new species of Fannia from Colombia, pp. 1-46 in Zootaxa 3591 on pages 29-30, DOI: 10.5281/zenodo.213946