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

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

DOI

https://doi.org/10.5281/zenodo.6231695

persistent identifier

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

treatment provided by

Plazi

scientific name

Porphyrochroa
status

 

Key to species of Porphyrochroa View in CoL View at ENA 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 13a); sternite 8 divided longitudinally in two narrow plates widely separated (Fig. 13b); hypandrium reduced in size (Figs. 13c; e)..........................................2

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

2. Midlegs simple, without modifications ...................................................................................... P. elongata View in CoL

- Modified midlegs, with projections on the tarsomeres (Fig. 13i)........................... P. platypoderis View in CoL 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. 8i); sternite 7 inclined in lateral view (Fig. 11c).....................................................................................................................................................................5

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

- Subepandrial sclerite without fold at arm apex (Fig. 10i) ......................................... P. manauara View in CoL 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. 18 View FIGURE 18 a; f); sternite 5 modified, with projections and setae.....................................................................................................................................................14

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

14. Mild curve at apex of vein R2+3 beneath pterostigma ( Fig. 18 View FIGURE 18 f); hypandrium with setae (Fig. 6d; g); sternite 5 as Figures 6b; c ........................................................................................................... P. distincta View in CoL sp. nov.

- Accented curve at apex of vein R2+3 beneath pterostigma ( Fig. 18 View FIGURE 18 a); hypandrium without setae (Fig. 1d; g); sternite 5 as Figures 1b; c ............................................................................................ P. aliena View in CoL sp. nov.

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

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

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

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

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

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

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

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

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

- Epandrium subsquare (Fig. 11e); hypandrium without setae and apex with three projections in dorsal view (Fig. 11f); 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

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