Key to Afrotropical species of male Pachycerina 1 Prefrons (face) lateral spots large, black; wing hyaline or infuscated anteriorly.... 2 – Prefrons (face) lateral spots small, brown; wing hyaline......................................................................................................... P. micropunctata sp. n. (Madagascar) 2 Abdomen yellow or orange-brown, with paired T6 spots.................................... 3 – Abdomen black, without paired T6 spots............................................................. 8 3 Ventral margins of abdominal tergites with clear black edging............................ 4 – Ventral margins of abdominal tergites orange-brown, without any black edging...... 5 4 Wing strongly fumose, male gonopods about equal in length.................................................................................................. P. nigrivittata sp. n. (southern Africa) – Wing weakly fumose, male gonopods unequal in length............................................................................................................ P. stuckenbergi sp. n. (Madagascar) 5 Antenna dark brown, distinct infuscation of scape, pedicel and/or postpedicel... 6 – Antenna yellow (no infuscation of scape, pedicel, postpedicel).......................... 7 6 Thoracic vittae orange to dark brown (markings often diffuse); pedicel dark brown, postpedicel blackish brown; artistal plumosity rather sparse............................................................................................................. P. pellocera sp. n. (Madagascar) – Thoracic vittae black (instensely marked); postpedicel yellow, outer half of pedicel and scape brown; aristal plumosity dense............ P. potentilla sp. n. (São Tomé) 7 Profemur posteriorly yellow with brown area apically; lower lateral corners of prefrons (face) with brown smudge............... P. seychellensis Lamb (Seychelles) – Profemur posteriorly all yellow-orange; lower lateral corners of prefrons (face) not infuscated........................................ P. vaga Adams (southern and eastern Africa) 8 Lower lateral thoracic vitta restricted to upper margin of sternopleuron, mid- and hind-legs yellow-orange....................................................................................... 9 – Lower lateral thoracic vitta expanding to cover entire sternopleuron, mid- and hind-legs mainly blackish........................................... P. atrimela sp. n. (Madagascar) 9 Wing fumose...................................................................................................... 10 – Wing hyaline.............................................. P. crinicornis (Thomson) (Mauritius) 10 Profemur all yellow-orange, haltere orange.................. P. gabela sp. n. (Angola) – Profemur yellow with black tip, haltere black............................................................................................................................. P. obscuripennis Lamb (Seychelles)

Published as part of Davies, Gregory B. P. & Miller, Raymond M., 2009, Revision of Afrotropical Pachycerina Macquart (Diptera: Lauxaniidae), pp. 295 in African Invertebrates 50 (2) on page 307, DOI: 10.5733/afin.050.0207, http://zenodo.org/record/7910522