Revision of Afrotropical Pachycerina Macquart (Diptera: Lauxaniidae) Author Davies, Gregory B. P. Author Miller, Raymond M. text African Invertebrates 2009 2009-12-31 50 2 295 295 http://www.bioone.org/doi/abs/10.5733/afin.050.0207 journal article 10.5733/afin.050.0207 2305-2562 7910522 Pachycerina obscuripennis Lamb, 1912 Figs 20 , 28 Pachycerina obscuripennis : Lamb 1912: 308 . Type locality: Mare-aux-Cochons forest , Silhouette Island , Seychelles . The type is a male mounted on cork and is in reasonable condition (e.g., all antennae and legs intact). Lamb’s description is good and relevant features of this species are: (1) prefrontal spots large and black, (2) postpedicel mainly yellow except for dark brown base, (3) scape and pedicel dark brown, (4) ocellar spot rather small, (5) fronto-orbital plates weakly infuscated, (6) scutal vittae replaced by two broad, dark brown longitudinal bands separated by a thin, medial, longitudinal yellow vitta (this colour pattern not the result of postmortem discoloration), (7) scutellum all dark brown except for yellow edges, (8) mesopleuron orange with dark brown upper lateral vitta, (9) sternopleuron completely infuscated dark brown, (10) profemur yellow-orange with blackish mark apically, (11) protibia and protarsus black (apex of protibia with ring of yellow), (12) wing strongly infuscated especially stigma and costal, marginal and submarginal cells, (13) abdomen all black with no T6 spots. The species is still only known from the holotype . We have dissected out the terminalia which Lamb (1912) did not describe. Male terminalia ( Figs 20 , 28 ): S5 lost in dissection. No T6 spots. Surstyli about as long as the epandrium. Gonopods asymmetric, gonopods about equal in length, left gonopod damaged in dissection and artificially truncated. Both gonopods with lateral spinules. Aedeagal apodeme short and anteriorly rounded, tapering posteriorly. Holotype (examined): ơ SEYCHELLES : Silhouette I. , forest above Mare-aux-Cochons 1908, J.S. Gardiner ( BMNH ).