Porphyrochroa

Mendonça, Mirian Nascimento, Rafael, José Albertino & Ale-Rocha, Rosaly, 2008, Revision of the Brazilian Amazon Basin species of Porphyrochroa Melander (Diptera: Empididae), Zootaxa 1859, pp. 1-39: 36-39

publication ID

http://doi.org/ 10.5281/zenodo.183631

persistent identifier

http://treatment.plazi.org/id/03AF87B5-A447-1853-FF36-FA35D3B6FD77

treatment provided by

Plazi

scientific name

Porphyrochroa
status

 

Key to species of Porphyrochroa  from the Amazon Basin, Brazil, based on males.

1. Mid tibia without long slender dorsal setae; mid basal tarsomere without long posterodorsal setae; tergite 7 without pair of posteroventral protuberances (Fig 13 a); sternite 8 divided longitudinally in two narrow plates widely separated (Fig. 13 b); hypandrium reduced in size (Figs. 13 c; e).......................................... 2

- Mid tibia with long slender dorsal setae; mid basal tarsomere with long posterodorsal setae; tergite 7 with pair of posteroventral protuberances (Fig 2 a); sternite 8 entire (Fig. 2 b); hypandrium normal (not reduced)..................................................................................................................................................................... 3

2. Midlegs simple, without modifications ...................................................................................... P. elongata 

- Modified midlegs, with projections on the tarsomeres (Fig. 13 i)........................... P. platypoderis  sp. nov.

3. Anterior lobe of cercus projected to the apex (Fig. 4g); posterior lobe wide (Fig. 4g).............................. 4

- Anterior lobe of cercus projected to the base (Figs. 7g; 15g); base of posterior lobe narrow (Figs. 7g; 15g); subepandrial sclerite with arms usually convergent (Fig. 8 i); sternite 7 inclined in lateral view (Fig. 11 c)..................................................................................................................................................................... 5

4. Anal lobe of wing weakly developed; hind femur without row of anteroventral spines P. hipandriociliaris 

- Anal lobe of wing well developed ( Fig. 18View FIGURE 18 d); hind femur without row of anteroventral spines .................. ............................................................................................................................ P. cercosingularis  sp. nov.

5. Ejaculatory apodeme with four projections (Fig. 14 f); hind tibia with long dorsal setae........................... 6

- Ejaculatory apodeme with three projections (Fig. 3 f); hind tibia usually without long dorsal setae; mid tibia with long posterodorsal setae ............................................................................................................. 7

6. Hypandrium without setae (Fig. 14 d; g); acrostichal setae absent; mid tibia with long slender setae .......... ........................................................................................................................... P. quadrilamelaris  sp. nov.

- Hypandrium with setae in posterior region; acrostichal setae reduced (one or two pair); mid tibia without long slender setae ............................................................................................................................. P. vidali 

7. Cercus with bifid apex (Figs. 3 h; 5 h)......................................................................................................... 8

- Cercus with simple apex (Fig. 6 h).............................................................................................................. 9

8. Tergite 8 with narrow posterior projection (Fig. 3 a); sternite 7 square, without lateral projections (Fig. 3 b) ............................................................................................................................................ P. bifida  sp. nov.

- Tergite 8 without narrow projection at apex (Fig. 5 a); sternite 7 with lateral projections (Fig. 5 b) ............. ................................................................................................................................... P. dactiloides  sp. nov.

9. Mid basal tarsomere with long dorsal setae; anal lobe of wing well developed ( Fig. 18View FIGURE 18 c)....................... 10

- Mid basal tarsomere without long posterodorsal setae; anal lobe of wing usually weakly developed ( Fig. 18View FIGURE 18 a)............................................................................................................................................................ 12

10. Semi-circular epandrium in lateral view (Figs. 10; 16 e)........................................................................... 11

- Subtriangular epandrium in lateral view (Fig. 17 e)......................................................... P. xavieri  sp. nov.

11. Subepandrial sclerite with fold at arm apex (Fig. 16 i) ................................................... P. s i m p l e x sp. nov.

- Subepandrial sclerite without fold at arm apex (Fig. 10 i) ......................................... P. manauara  sp. nov.

12. Hind femur with row of anteroventral and posteroventral spines ............................................................. 13

- Hind femur without row of anteroventral spines...................................................................................... 16

13. Cell dm widened apically in comparison with the base ( Figs. 18View FIGURE 18 a; f); sternite 5 modified, with projections and setae..................................................................................................................................................... 14

- Cell dm narrowed apically in comparison with the base ( Figs. 18View FIGURE 18 h; 19 b); sternite 5 normal................... 15

14. Mild curve at apex of vein R 2 + 3 beneath pterostigma ( Fig. 18View FIGURE 18 f); hypandrium with setae (Fig. 6 d; g); sternite 5 as Figures 6 b; c ........................................................................................................... P. distincta  sp. nov.

- Accented curve at apex of vein R 2 + 3 beneath pterostigma ( Fig. 18View FIGURE 18 a); hypandrium without setae (Fig. 1 d; g); sternite 5 as Figures 1 b; c ............................................................................................ P. aliena  sp. nov.

15. Hind tibia with four posteroventral basal spines ............................................................ P. grandis  sp. nov.

- Hind tibia without four posteroventral basal spines ................................................... P. pacaraima  sp. nov.

16. Cercus with internal ventral downward projection in dorsal view (Fig. 2 i).............................................. 17

- Hind tibia with long slender dorsal setae; subepandrial sclerite with arms divergent (Fig. 15g).................. .................................................................................................................................. P. roraimensis  sp. nov.

17. Hind femur with ventral spine; epandrium with digitiform projection superiorly (Figs. 2 c; 9 d)............. 18

- Hind femur without ventral spine............................................................................................................. 19.

18. Hind tibia without long slender setae ......................................................................... P. amazonica  sp. nov.

- Hind tibia with long slender setae ............................................................................... P. longiseta  sp. nov.

19. Epandrium projected anteriorly and superiorly, with setae on dorsal region (Fig. 7 e); hypandrium without setae (Figs. 7 d; h); hind tibia without long slender setae; anal lobe of wing well developed ( Fig. 18View FIGURE 18 g) ..... ...................................................................................................................................... epandrialis  sp. nov.

- Epandrium subsquare (Fig. 11 e); hypandrium without setae and apex with three projections in dorsal view (Fig. 11 f); hind tibia with four pairs of long dorsal setae; hind basal tarsomere with two long dorsal setae; mid basal tarsomere with two anteroventral spine in basal region.................................. P. n e b l i n a sp. nov

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Empididae