Fannia boruca, Grisales & De Carvalho, 2019

Grisales, Diana & De Carvalho, Claudio J. B., 2019, Highland biodiversity of Fanniidae (Insecta, Diptera): fourteen new species from the Andes and Central America, Zootaxa 4551 (3), pp. 330-360 : 338-340

publication ID	https://doi.org/ 10.11646/zootaxa.4551.3.4
publication LSID	lsid:zoobank.org:pub:946C9A0F-D5C8-4EB6-8939-48BC7DE400A9
DOI	https://doi.org/10.5281/zenodo.5931470
persistent identifier	https://treatment.plazi.org/id/6909C857-F20D-FF85-5390-BFD0FBDA3FD2
treatment provided by	Plazi
scientific name	Fannia boruca
status	sp. nov.

Treatment

Fannia boruca View in CoL sp. nov.

( Figs. 1C View FIGURE 1 , 2 View FIGURE 2 F–I, 5C, 6C, 8C)

Diagnosis: male dichoptic; fifth fore tarsomere flatten and darkened, tarsomeres 1–4 white–yellowish, second fore tarsomere with one short ventral spine; katepisternum with strong ventral spine; hind coxa with strong and long hook setae on ventral surface.

Description. Holotype male ( Fig. 1C View FIGURE 1 )

Head: dichoptic. Eye with sparse setulae. Frontal vitta velvety dark. 6 fr, posterior setae not developed. A single pair of oc proclinate and developed, surrounded by 4 less developed setulae. Fronto–orbital plate, parafacial and gena dark with golden pollinosity; 2 orb, 1 reclinate upper and 1 lateroclinate lower seta. Frontal plate with 2 series of irregular setulae on anterior area and 2 setae between orb. Parafacial bare. Scape dark–brown, 2 setae reaching pedicel. Pedicel dark, weak golden pollinosity, 1 dorsal strong seta and 6 less developed setae. Postpedicel with golden pollinosity, 3 times the length of pedicel. Arista dark with short pubescence. Palpus dark, spatulate.

Thorax: dark; scutum without vittae. Acr 3:3, irregular rows. Dc 2:3. Pprn 2, developed and 1 weak. Pra 2, strong. Katerpisternum with tuft of right and strong ventral spine; proepimeron setulose. Subapical scutellar setae 1 pair. Discal scutellar setae 2.

Wing: yellowish. Calypters brownish. Haltere brown with stem and base lighter in colour.

Legs: dark with pulvilli yellowish; anterior leg brownish with the apex and tibia, fore tarsus whitish and yellowish pollinosity, ventral surface translucent, apical tarsomere darkened ( Fig. 2G View FIGURE 2 ). Fore femur with 1 series of short av setae; 1 series of long pv; 2 series of p, less developed than pv; 1 series of long pd. Fore tibia with 1 preapical d; 1 p and 1 pv, short. Fore tarsi bare on v surface, except for 1 short spine on the second tarsomere ( Fig. 2F View FIGURE 2 ); apical tarsomere with 2 long and curved d. Mid coxa with 6 long d and 1 v. Mid femur constricted on ventral preapical surface; 1 series of long ad ( Fig. 2H View FIGURE 2 ); 7 short and right av on apical third; 1 irregular series of long v, diminishing in length on apical half ( Fig. 2H View FIGURE 2 ); 1 series of short pv forming an apical ctenidium; 1 series of long and hook pd, setae on apical half developed with right apex. Mid tibia constricted weakly on basal v surface; 1 preapical ad; 1 a on apical third, 2 apical a; 1 apical av; 2 strong apical v; 1 median p and 2 apical. Hind coxa with 4 p, strong and long hook setae on ventral surface. Hind femur strongly curved ( Fig. 2I View FIGURE 2 ); preapical strong protuberance on v surface, conspicuous tuft of hooked av, v and pv setae ( Fig. 2I View FIGURE 2 ); 1 series of long ad towards d surface; ventral surface on basal half bare; 1 series of pv on basal half; 1 series of hooked p on basal half ( Fig. 2I View FIGURE 2 ). Hind tibia with 1 median d and 1 preapical d; 9–13 of strong a on apical half, 1 seta on apical third and 1 apical seta ( Fig. 2I View FIGURE 2 ); 2–3 median av and 1 apical; 2 apical v.

Abdomen: trimaculate. Syntergite 1+2 with short lateral setae, setulose on apex. Sternite 1 bare. Sternite 5 ( Fig. 5C). Terminalia ( Fig. 6C View FIGURE 6 ): epandrium wider than long, with sparse and weak setae; cercal plate V–shaped with long setae on external margin; surstylus strongly fused with epandrium without visible articulation, long and right, inner basal region setulose with short setae, acute on apex, with lateral–apical projections or process with short setae; bacilliform process absent.

Female: dichoptic, similar to male, except: Frontal vitta black velvety. 8–10 fr. Upper orb and lower orb reclinate. Row of short and irregular fro. Fronto–orbital plate shining black, without pollinosity. Parafacial greyish pollinose until arista, with short setae almost same length of fro and in the same line. Pedicel with 1 short seta. Postpedicel 3 times the length of pedicel. Mesonotum reddish brown. Intra–alar area, postsutural supra–alar area and lateral area black. Calypter yellowish. Haltere whitish with base yellowish. Legs with tibia orange on apex. Fore femur with short pv, increasing in length to apex; 1 row of pd. Fore tibia with 1 row of av. Mid femur with 1 row of short av diminishing in length on apical half; 1 row of short pv diminishing in length to apex. Mid tibia without constriction on ventral base; 1 apical v; 2 p on apical third. Hind femur with small constriction and flattened on anterior and posterior surfaces; 1 row of short ad, increasing in length on apical half; developed av on apical half; short p on apical base; ventral face bare. Hind tibia with 1 median seta. Abdomen not trimaculate reddish brown; fourth tergite with 1 pair of lateral setae. Terminalia: cercus longer than hypoproct, with long and sinuous setae on apex; hypoproct round and setulose, mainly on apical area, setae shorter than cercus setae; sternite 8 reduced to 2 separated plates with long setae, developed and sinuous; sternite 7 wider than long with setae on apical half, longer apical setae; sternite 6 bigger than sternite 7, with apical disorder setae. Spermathecae 2, semicircular and flattened apically.

Biology. Label information indicates that this species occurs in highland forests in Costa Rica, above 2800m. Nothing else is known about its habits or biology.

Comments. This species is similar to Fannia gilvitarsis Chillcott, 1961 because of the yellow fore tarsus and the distinct broad frontal vitta. Similar to Fannia arcuata Chillcott, 1961 because of broad frontal vitta. Differs in the combination of the remaining diagnostic characters. F. gilvitarsis and F. arcuata occur in Central America, in Mexico, 2300–3000 m ( Chillcott 1961).

Etymology. Name in apposition. The species epithet refers to the Boruca indigenous people, who once inhabited Guanacaste province in Costa Rica.

Type material. Holotype male ( INBio). COSTA RICA: San José. Est. Cuerici, Send. El Carbon, 5km / Este de Villa Mills, San josé, Costa / Rica 2800m. 19 ENE 1996. B./ Gamboa, de Luz /L_S390300_500300 #6785/ Costa Rica INBio CRI002 View Materials 378780 . Paratypes. COSTA RICA. San José: Est. Cuerici, Send. El Carbon, 5km / Este de Villa Mills , San José, Costa / Rica 2800m. 19 ENE 1996. B./ Gamboa, de Luz /L_S390300_500300 #6785/ Costa Rica INBio CRI002 View Materials 378781 (1 male, INBio); “Idem”/ Costa Rica INBio CRI002 View Materials 378789 (1 male, DZUP); “idem”/ Costa Rica INBio CRI002 View Materials 378782 (1 female, INBio); “idem”/ 20 ENE 1996. A. Picado / “idem” #6806/ Costa Rica INBio CRI002 View Materials 392809 (1 male, INBio); “idem”/ Costa Rica INBio CRI002 View Materials 392820 (1 male, DZUP) .