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 micropunctata sp. n. Figs 8 , 27 , 37 , 48 Etymology: From Greek mikros (small or little) and Latin punctum (dot or spot), in reference to the tiny prefrontal (facial) spots, which are much smaller than those of other Afrotropical species ( Fig. 8 ). Diagnosis: Small prefrontal spots are distinctive ( Fig. 8 ); prefrons is also less bulging than in other Pachycerina species. P. micropunctata is restricted to Madagascar and the Comoros . Description: Head : Brown spots encircling fronto-orbital bristle alveoli faint. Ocellar spot black, anterior edge of ocellar spot abruptly truncate. Prefrontal spots small, dark brown. Prefrontal lower lateral corners infuscated. Prefrons in profile not as tumid as other Pachycerina species. All flagellomeres yellow, specimens from Comoros with distally infuscated postpedicel. Thorax :Yellow, coloration darker on scutum but acrostichal, dorsocentral and presutural vittae not easily seen. Meso- and sternopleura yellow-orange with no upper and lower lateral thoracic vittae. Scutellum yellow. Legs all yellow to orange, protibia and protarsus orangish (not blackish as in other species). Wing hyaline. Haltere yellow-orange. Abdomen : Yellow-orange, but frequently discoloured to black. Male terminalia ( Figs 27 , 37 , 48 ): S5 with acuminate posterior arms; medial spur present. T6 with paired black spots. Surstyli long (longer than epandrium). Gonopods asymmetric. Left gonopod slightly shorter than right gonopod. Left gonopod with small lateral spinule. Aedeagal apodeme long, thin and curved. Figs 28–33. Dorsal view of male inner genitalia: (28) Pachycerina obscuripennis Lamb ; (29) Pachycerina potentilla sp. n. ; (30) Pachycerina stuckenbergi sp. n. ; (31) Pachycerina atrimela sp. n. ; (32) Pachycerina gabela sp. n. ; (33) Pachycerina pellocera sp. n. Abbreviation: aed apo – aedeagal apodeme. Scale bar = 0.5 mm. Measurements : ơ (n=1), ^(n=4): head length – ơ 0.6, ^0.6; thorax length (incl. scutellum) – ơ 1.7, ^1.6; abdomen length – ơ 1.1, ^1.7; wing length – ơ 3.3, ^3.2. Holotype : ơ MADAGASCAR : Navana-Antongil , Maroantsetra [ 15°26'S : 49°45'E ], 20–25.iii.1958 , B.R. Stuckenberg ( NMSA ). Other material examined: MADAGASCAR : 4^Navana-Antongil , Maroantsetra [ 15°26'S : 49°45'E ], 20– 25.iii.1958 , B.R. Stuckenberg ( NMSA ) ; 1ơ Vakoana , Andringitra , Ambalavao , 21–24.i.1958 , B.R. Stuckenberg ( NMSA ) ; 1^Andasibe (= Périnet ) [ 18°49'S : 48°26'E ], 1.x.1958 , F. Keiser ( MHNB ) ; 6ơ 1^Ifanadiana [ 21°15'S : 47°27'E ], 23 & 24.viii.1958 , F. Keiser ( MHNB ) ; 2ơ 1? Mananjary [ 21°17'S : 47°56'E ], 17 & 20.viii.1958 , F. Keiser ( MHNB ) ; 1ơ 1^Ambodimanga [ 14°59'S : 50°12'E ], 8 & 19.viii.1958 , F. Keiser ( MHNB ) . COMOROS : 1^Anjouan , Lac de Dzialandzé , 15.i.1974 , L. Matile ( MNHN ) ; 1^Anjouan , Col de Moya , 16.i.1974 , L. Matile ( MNHN ) ; 1ơ Grande Comore , Kartala , Convalescence , 20–21.xi.1973 , L. Matile ( MNHN ) .