Fannia

Wendt, Lisiane Dilli, 2010, New species and new records of Fannia Robineau-Desvoidy (Diptera, Fanniidae) from the Brazilian Amazon Region, Zootaxa 2575, pp. 38-48 : 40

Key to males of Fannia recorded from the Brazilian Amazon Region

1 Body length 2.5–4.5 mm. Parafacial setulose ( Figs. 1, 4 ). Wing yellow or hyaline. Bacilliform process absent ....... 2

- Body length greater than 4.5 mm. Parafacial bare. Wing brown. Bacilliform process present .................................. 6

2 General colour grey. Antenna and palpus yellow ( Fig. 1 ). Sternite 1 with dense setae ................. F. flavicornis Stein

- General colour dark brown. Antenna and palpus dark brown ( Fig. 4 ). Sternite 1 bare................... 3 (subgroup pusio )

3 Hind femur with a distinct preapical ventral protuberance (see Couri 2005: fig. 1) .................................................. 4

- Hind femur lacking such protuberance, but having a slight preapical callosity (see Couri 2005: fig. 2) ................... 5

4 Hind tibia with long, soft, hair-like setae on ventral surface (see Couri 2005: fig. 3) .............. F. pusio (Wiedemann)

- Hind tibia without long, soft, hair-like setae, only two or three short setae on ventral surface (see Couri 2005: fig. 5) ............................................................................................................................................................. F. dodgei Seago

5 Anteroventral surface of hind femur with a single, strong seta on apical third, and a row of straight setae on basal third (see Couri 2005: fig. 11)...................................................................................................... F. trimaculata (Stein)

- Anteroventral surface of hind femur with more than one seta on apical third and lacking a row of straight setae on basal third (see Couri 2005: fig. 14) ................................................................ F. trimaculatoides Couri & Pamplona

6 General colour brown, with grey pruinosity. Mesonotum grey with brown vittae along acrostichal line .................... ........................................................................................................................................... F. rafaeli Carvalho & Couri

- General colour brown to dark brown, without grey pruinosity. Mesonutum entirely brown, without vittae ............. 7

7 First and second fore tarsomeres with a posterodorsal leaf-shaped seta at apex ( Figs. 15–16 ). Eyes strongly approximated, frontal setae confined to the lower third of frons ( Fig. 7 ). Hind coxa bare on posterior surface ....................... ............................................................................................................................................................... F. bifolia sp. n.

- First and second fore tarsomeres without a posterodorsal leaf-shaped seta at apex. Eyes separated by frontal setae along the entire length of orbits ( Figs. 2–3 ). Hind coxa with setae on posterior surface ........................................... 8

8 Eight to 11 pairs of frontal setae ( Fig. 2 ). Halter yellow. One pair of prescutellar setae. Fore tibia with one submedian seta on anterior and posterior surfaces. Abdominal tergites 1–3 with lateral yellow spots .............................. ............................................................................................................................................ F. itatiaiensis Albuquerque

- About 11 pairs of frontal setae ( Fig. 3 ). Halter brown. Two pairs of prescutellar setae. Fore tibia without submedian seta on anterior and posterior surfaces. Abdominal tergites 1–3 entirely brown ......................................................... 9

9 Eye sparsely ciliate. Wing brown, with dark brown spots on the anterior margin and along r-m and dm-cu crossveins. Hind femur with three or four long setae at the proximal apical half of anteroventral surface ( Fig. 6 ) .............. ................................................................................................................................................... F. obscurinervis (Stein)

- Eye bare. Wing brownish, without dark brown spots on the anterior margin and on crossveins (if present, very faint). Hind femur with a set of long setae at the proximal apical half of anteroventral surface ( Fig. 5 ) ................................ .............................................................................................................................. F. c a r a m a s c h i Couri & Winagraski

Figures

FIGURES 1 – 6. 1 – 4. Head, male. 1. Fannia flavicornis Stein. 2. Fannia itatiaiensis Albuquerque. 3. Fannia obscurinervis (Stein). 4. Fannia trimaculatoides. 5 – 6. Hind femur, anterior view, male. 5. Fannia caramaschi Couri & Winagraski, holotype (MNRJ). 6. Fannia obscurinervis. Arrows in Figs. 1 and 4 indicate parafacial setae. Scale 0.5 mm.

FIGURES 7 – 16. Fannia bifolia sp. nov. 7 – 8. Holotype male, general dorsal view and general lateral view, respectively. 9. Paratype female, general lateral view. 10. Holotype male, head, lateral view. 11. Paratype female, head, frontal view. 12. Paratype female, abdomen, dorsal view. 13. Paratype male, hind leg, anterior view. 14. Paratype male, hind leg, posterior view. 15 – 16. Holotype male, first and second fore tarsi showing leaf-shaped posterodorsal apical setae.