226 Phoridae. 



— Three first joints on front tarsi a little dilated. . 100. anisodactyla Schmitz. 



22. Lower supraantennal bristles at least half the 



size of the upper ; antennæ brown to red 23. 



— Lower supraantennal bristles minute ; antennæ 



brown to black Collini Wood. 



23. Hypopygium conspicuously haired; hind tibiæ 

 with quite small bristles but with conspicuous 



hairs anterodorsally (only male known) aperta Schmitz. 



— Hypopygium slightly haired; hind tibiæ with 

 more conspicuous bristles, but not unusually 



haired anterodorsally 99. rubella Schmitz. 



24. Bristles on hind tibiæ strong, or at all events 



distinct 25. 



— Bristles on hind tibiæ very weak and numerous 33. 



25. Halteres black 26. 



— Halteres yellow 27. 



26. Supraantennal bristles equal, the upper more 

 distant than the inner bristles of the middle 

 row ; palpi yellow ; bristles on hind tibiæ strong ; 



1 not double 2 101 . frontalis Wood. 



— Supraantennal bristles unequal, the upper more 

 approximate than the inner bristles of the 

 middle row; palpi blackish; bristles on hind 



tibiæ not strong; 1 double 2 (only male known) 102. melaena Lundbk. 



27. Hind tibiæ besides the posterodorsal row of 

 large bristles with an anterodorsal bristle at 

 base and middle tibiæ with an anterodorsal row 

 in the upper half and about two posterodorsal 



bristles near the base melanocephala v. Ros. 



— Middle and hind tibiæ with the bristles normal 28. 



28. Inner bristle of lower frontal row nearly vertic- 



ally below the outer 103. infraposita Wood. 



— Inner bristle of lower frontal row in usual 



position 29. 



29. Supraantennal bristles equal or nearly so . . . 104. vernalis Wood. 



— Supraantennal bristles unequal 30. 



30. Thorax and antennæ yellow 105. sulphuripes Meig. 



— Thorax black or dark reddish; antennæ red 



or darker 31 . 



31. Front tarsi simple; size 1,4 — 2,5 mm 32. 



— Front tarsi stout; size 1,2—1,7 mm 108. tarsella Lundbk. 



32. Antennæ red or brownish red; wings distinctly 

 tinged; last joint on jjosterior, especially middle 



tarsi in male longer than the fourth 106. scutellaris Wood. 



— Antennæ blackish brown or blackish ; wings al- 

 most colourless; posterior tarsi in male simple. . 107. wipolluta Schmitz. 



33. Costa in female more or less thickened; hypo- 

 pygium without bristles 34. 



