Pachycerina : Macquart 1835
Creators: name: Davies, Gregory B. P.
name: Miller, Raymond M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Lauxaniidae
Pachycerina

description: 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)
description: 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