Fannia anguliseta, Gomes & Pedraza-Lara, 2023

Gomes, Lucas R. P. & Pedraza-Lara, Carlos, 2023, Fannia pretiosa-group (Diptera: Fanniidae) from Mexico: six new species from the Mexico Transition Zone and an identification key, Zootaxa 5264 (2), pp. 185-204 : 190-193

publication ID

https://doi.org/ 10.11646/zootaxa.5264.2.2

publication LSID

lsid:zoobank.org:pub:97A03469-519D-49D7-8D0E-2F6648CCB922

DOI

https://doi.org/10.5281/zenodo.7836365

persistent identifier

https://treatment.plazi.org/id/0396A100-C21B-EE7B-DDF7-F92C40D61570

treatment provided by

Plazi (2023-04-17 10:24:25, last updated 2024-11-29 13:14:27)

scientific name

Fannia anguliseta
status

sp. nov.

Fannia anguliseta View in CoL sp. nov.

( Figs 1D, 1E View FIGURE 1 , 3C View FIGURE 3 , 4C View FIGURE 4 , 5C View FIGURE 5 , 6C View FIGURE 6 , 8 View FIGURE 8 , 16 View FIGURE 16 )

Diagnosis. Fore tarsomere 1–4 white-yellowish, tarsomere 5 brown ( Fig. 8D View FIGURE 8 ). Mid basitarsus enlarged ventrally ( Fig. 8F View FIGURE 8 ). Hind coxa bare ( Fig. 1D View FIGURE 1 ). Hind femur slightly curved with pre-apical swelling on v surface, with a tuft of long pv setae (twice longer than width of femur) on the swelling, becoming shorter towards the base, and connected to a row of pv setae which reaches the femur base. Wing brownish ( Fig. 8B View FIGURE 8 ). Syntergosternite with 5 long lateral setae (the two most dorsal are curved and twice longer than sternite 5) ( Fig. 1E View FIGURE 1 ).

Description. Male. Body length: 6.2 mm. Wing length: 6.0 mm.

Head. Eye short and sparsely setulose. Ocellar triangle dark brown; ocellar setae proclinate and developed (as long as frontal setae). Frontal vitta velvety brownish to black with silver pruinosity, at the narrowest point twice wider than width of anterior ocellus ( Fig. 8A View FIGURE 8 ). Frontal setae 18. Fronto-orbital plate dark brown to black with silver pruinosity. Parafacial bare, brownish with silver pruinosity. Frontogenal suture and gena silver pruinose. Gena brownish to black ( Fig. 8A View FIGURE 8 ). Pedicel with dorsal seta developed, about one third of the length of arista. Postpedicel black, silver pilose.

Thorax. Scutum without vittae, with inconspicuous silver pruinose on postpronotal and notopleural regions ( Fig. 8B View FIGURE 8 ).Acrostichal setulae triserial presuturally and triserial to quadriserial postsuturally. Dorsocentrals 2+3, long, posterior-most postsutural pair slightly longer than the others. Prealar 2, anterior one slightly longer. Katepisternum with about 10 long and thick setae ventrally ( Fig. 8C View FIGURE 8 ).

Wing. Brownish ( Figs 8B, 8C View FIGURE 8 ). Calypters basally white and apically light brown. Haltere brown with stem light brown to yellow.

Legs. Light brown. Pulvilli light brown. Tarsi brown, except for fore tarsomeres 1–4, white-yellowish ( Fig. 8D View FIGURE 8 ). Fore tarsomeres 1 and 2 slightly enlarged laterally. Fore tarsomeres 5 with 3 long d setulae. Mid femur with 1 row of ad to d setae, with 1 row of decreasing av from base to apex; 1 row of long p and pv setae (thicker on the apical third) ( Fig. 8E View FIGURE 8 ). Mid tibia with 1 submedian ad, 1 median pd, 1 strong and long preapical d, 1 apical seta on a, ad, p, pv, and v (v longer, similar to d preapical seta) ( Fig. 8E View FIGURE 8 ). Mid basitarsus enlarged ventrally ( Fig. 8F View FIGURE 8 ). Hind coxa bare on posterior margin ( Fig. 1D View FIGURE 1 ). Hind femur slightly curved with pre-apical swelling on v surface, with a tuft of long setae on the pv surface which continuous in a row decreasing in length basally, 3 long preapical ad setae, 1 row of av setae (absent on the pre-apical swelling), 1 long preapical av setae, 1 short preapical ad and pd ( Fig. 8F View FIGURE 8 ). Hind tibia with 2 median av; 1 submedian ad; 1 apical av ( Fig. 8F View FIGURE 8 ).

Abdomen. Metallic light brown with silver pruinosity, elongate, with developed setae, tergite 5 with long marginal setae (slightly longer than others). Syntergosternite with 5 lateral setae, the two most dorsal are curved and twice longer than sternite 5 ( Fig. 8C View FIGURE 8 ). Sternite 5 rectangular, twice wider than its length, posterior margin profoundly indented ( Fig. 3C View FIGURE 3 ).

Terminalia. Surstyli fused with epandrium. Surstyli curved apically ( Fig. 4C View FIGURE 4 , 5C View FIGURE 5 ). Bacilliform process long and simple, as long as half of the surstyli ( Fig. 4C View FIGURE 4 ). Hypandrial arms directed outwards ( Fig. 6C View FIGURE 6 ).

Female. Unknown.

Etymology. The specific name is derived from the Latin words anguli- (“apex”) and seta (“bristle”), it refers to the long setae in the apex of the abdomen (syntergosternite).

Type-material. Holotype. Male. Mexico. Hidalgo. Parque Ecológico El Chico, Mineral El Chico , 20°10′58′′N, 98°43′04′′W, 9.vi-16.vii.2019, Trampa aérea 5, Nuple, E. ( CNIN) GoogleMaps . Paratypes. Same as holotype, 2 males ( CNIN; CARF, CPL2943 ) GoogleMaps ; same as holotype, except: trampa aérea 3, 16.vii.2019, 1 male ( CNIN) GoogleMaps . Tlaxcala. Nanacamilpa, Piedra Cantada , 19°27′23′′N, 98°36′01′′W, Trampa aérea 2, 13.vii.2019, Nuple, E., 1 male ( CARF, CPL2925 ) GoogleMaps .

Distribution. Mexico (Hidalgo, Tlaxcala).

Remarks. F. anguliseta is similar to F. abdominiseta but can be easily distinguished from it by the brownish wing.

Gallery Image

FIGURE 1. Fannia amplitarsis sp. nov., anterior apical seta of mid tibia ⅔ the length of basitarsus (black triangle), anterodorsal view (A); Fannia arcuata, anterior apical seta of mid tibia 1/2 length of basitarsus (black triangle), anterodorsal view (B); Fannia amplitarsis sp. nov., hind coxa with two posterior setae (white triangle), posterior view (C); Fannia anguliseta sp. nov., hind coxa bare posteriorly (white triangle), posterior view (D); Fannia anguliseta sp. nov., syntergosternite with 2 pairs of curved lateral setae twice longer than sternite 5 (white triangle), lateral view (E); Fannia pedregalensis sp. nov., syntergosternite without any curved lateral setae longer than sternite 5 (white triangle), lateral view (F); Fannia grisalesae sp. nov., mid basitarsus with the basal fourth enlarged and covered with four long and thick curved setae (black triangle), lateral view (G); Fannia gilvitarsis, mid basitarsus enlarged ventrally (black triangle), lateral view (H). Scale: 0.5 mm.

Gallery Image

FIGURE 3. Fannia, male, sternite 5, ventral view: F. abdominiseta sp. nov. (A); F. amplitarsis sp. nov. (B); F. anguliseta sp. nov. (C); F. arcuata (D); F. bisetata sp. nov. (E); F. gilvitarsis (F); F. grisalesae sp. nov. (G); F. pedregalensis sp. nov. (H). Scale: 0.1 mm.

Gallery Image

FIGURE 4. Fannia, male, epandrium, cerci and surstyli, posterior view: F. abdominiseta sp. nov. (A); F. amplitarsis sp. nov. (B); F. anguliseta sp. nov. (C); F. arcuata (D); F. bisetata sp. nov. (E); F. gilvitarsis (F); F. grisalesae sp. nov. (G); F. pedregalensis sp. nov. (H). Scale: 0.1 mm.

Gallery Image

FIGURE 5. Fannia, male, epandrium, cerci and surstyli, lateral view: F. abdominiseta sp. nov. (A); F. amplitarsis sp. nov. (B); F. anguliseta sp. nov. (C); F. arcuata (D); F. bisetata sp. nov. (E); F. gilvitarsis (F); F. grisalesae sp. nov. (G); F. pedregalensis sp. nov. (H). Scale: 0.1 mm.

Gallery Image

FIGURE 6. Fannia, male, aedeagus and associates structures, dorsal view: F. abdominiseta sp. nov. (A); F. amplitarsis sp. nov. (B); F. anguliseta sp. nov. (C); F. arcuata (D); F. bisetata sp. nov. (E); F. gilvitarsis (F); F. grisalesae sp. nov. (G); F. pedregalensis sp. nov. (H). Scale: 0.1 mm.

Gallery Image

FIGURE 8. Fannia anguliseta sp. nov. Male: head, frontal view (A); habitus, dorsal view (B); habitus, lateral view (C); fore tarsi (D); mid leg, anterior view (E); hind leg, anterior view (F). Scale: 1.0 mm.

Gallery Image

FIGURE 16. Distribution map of Fannia pretiosa-group (sensu Chillcott 1961) species from Mexico. Black lines (borders of Mexico states). Purple region (Sierra Madre del Sur province), yellow region (Sierra Madre Oriental province), red region (Transmexican Volcanic Belt province), orange region (Chiapas Highlands province) (sensu Morrone et al. 2022).

CARF

CARF

CNIN

Coleccion Nacional de Insectos, Universidad Nacional Autonoma de Mexico

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Fanniidae

Genus

Fannia