Sarcophaga (Lipoptilocnema) koehleri ( Blanchard, 1939 )

Mariluis, Pablo Ricardo Mulieri Juan Carlos & Patitucci, Luciano Damián, 2010, Review of the Sarcophaginae (Diptera: Sarcophagidae) of Buenos Aires Province (Argentina), with a key and description of a new species, Zootaxa 2575, pp. 1-37 : 28

Sarcophaga (Lipoptilocnema) koehleri ( Blanchard, 1939)

( Figs. 4 , 13 , 16 , 25 , 26 )

Parapeltopyga koehleri Blanchard, 1939: 847 .

Description of female. Body length = 9.1– 10 mm. Head. Head length at antennal base 1.01–1.03 head length at vibrissal level. Microtomentum of parafacial and fronto-orbital plate, gena, and postorbital areas distinctly golden. Genal setae black. Postgenal setae pale. Antenna black, first flagellomere black with gray microtomentum, length 0.28–0.31 head height, arista plumose. The females differ from males by the possession of wider front (0.29–0.32 of head width), and two pairs of proclinate fronto-orbital bristles. Thorax. Postpronotal lobe, notopleuron, supra-alar area, anepimeron, anepisternum and lateral stripes of scutum with golden microtomentum ( Fig. 16 ). Proanepisternum bare with silver microtomentum. Chaetotaxy: acrostichals 0+1 (prescutellar), dorsocentrals 3–4+2 (well developed posteriors), intra-alars 2+2, supra-alars 2+3, anterior postpronotal 1, basal postpronotal 2, postalars 2, notopleurals 4 (two big and two small), katepisternals 3 (median smaller on 3/4 the anterior). Scutellum with basal setae (with an additional smaller pair basally), lateral and apical (not crossed as in males) pairs well developed, sometimes with additional lateral or subapical pairs present (larger specimens). Wing hyaline, tegula black, yellow-orange basicosta, veins dark brown, R1 bare, R4+5 setulose in proximal 0.8 of distance to crossvein r-m, costal spine not differentiated, third costal sector without ventral setae, lower calypter whitish. Legs black; middle femur without posteroventral ctenidium on its apical portion. Abdomen. Tergites with spots of gray microtomentum. Tergites 1+2 and 3 without erect marginal setae. Tergite 4 with a pair of erect marginal setae. Tergite 5 with a complete row (four pairs) of erect marginal setae. Terminalia. Tergite 6 with a narrow membranous median area, and sclerotized reddish lateral edges. Tergite 8 absent. Sternite 6 mostly black, covered with hairs and silver microtomentum. Sternite 7 shining at the distal half, reddish to black, having a slight concave central area ( Figs. 13 , 25 ).

Distribution: Neotropical – Argentina (Buenos Aires, Salta), Brasil (Rio Grande do Sul).

Material studied: Buenos Aires: 1 ɗ Ciud. Aut. Buenos Aires, I.1995, Oliva leg. ( MACN); 1 ɗ Ciud. Aut. Buenos Aires, IX.1998 emerged, Oliva leg. ( MACN); 1 ɗ, 1 Ψ Burzaco, Alte. Brown, III.2002, Mulieri leg. ( ANLIS); 1 Ψ Burzaco, Alte. Brown, II.2006 from dead snail, Mulieri leg. ( ANLIS); 1 ɗ Burzaco, Alte. Brown, 19.IV.2005 on faeces, Mulieri leg. ( ANLIS); 4 Ψ Olivos, Vicente Lopez, IX.1951 ( ANLIS); 2 ɗ, 7 Ψ Mercedes, Mercedes, I.2004 ( ANLIS); 1 Ψ El Carretero, Magdalena 7.V.1999 ( FAUBA); 1 ɗ Ciud. Aut. Buenos Aires, 23.IX.1986 on Discaria americana ( FAUBA); 1 ɗ Ciud. Aut. Buenos Aires, V.2002, Mulieri leg. ( ANLIS); 1 ɗ Ciud. Aut. Buenos Aires, 4.X.2004 ( FAUBA); 8 ɗ, 4 Ψ Reserva Ecológica Costanera Sur, Ciud. Aut. Buenos Aires, II–X.2002, Mulieri leg. ( ANLIS); 3 ɗ Villa Elisa, La Plata, III.1980, Mariluis leg. ( ANLIS); 1 ɗVilla Elisa, La Plata, III.1982, Mariluis leg. ( ANLIS); 1 Ψ Campana, Campana, XI.1998, Mariluis leg. ( ANLIS); 2 ɗ Campana, Campana, III.2003, Mariluis leg. ( ANLIS); 4 ɗ, 8 Ψ San Miguel. San Miguel, II.1973, Mariluis leg. ( ANLIS), 1 ɗ Mar del Plata, Gral. Pueyrredón, XI.2007, Mulieri leg. ( ANLIS).

Remarks: Blanchard’s (1939) original description included good illustrations of the male terminalia.

Biology: Obtained from dead snails by the authors. Specimens also attracted to faeces. Flower visitor of Rhamnaceae ( Discaria americana ).

Figures

FIGURES 1 – 4. 1. Microcerella erythropyga, arista. 2. Sarcophaga (Lipoptilocnema) lanei, arista. 3. Oxysarcodexia varia, head frontal view, male. 4. S. (L.) koehleri, head frontal view, male. Scale bars = 0.20 mm. Abbreviations: fr s, frontal setae.

FIGURES 8 – 13. Female terminalia, postero-ventral view. 8. Oxysarcodexia varia. 9. O. terminalis. 10. O. marina. 11. O. paulistanensis. 12. O. bicolor. 13. Sarcophaga (Lipoptilocnema) koehleri.

FIGURES 14 – 16. Thorax. 14. Oxysarcodexia bicolor, left lateral view. 15. O. culmiforceps, left lateral view. 16. Sarcophaga (Lipoptilocnema) koehleri, dorsal view.

FIGURES 22 – 25. 22. Oxysarcodexia marina, female abdominal ST 7 + 8. 23. O. paulistanensis, female abdominal ST 7 + 8. 24. O. bicolor, female abdominal ST 7 + 8. 25. Sarcophaga (Lipoptilocnema) koehleri, female abdominal ST 6 and ST 7. Scale bars = 0.20 mm. The arrows show the concavity of the sternites. Abbreviation: ST, sternite.

FIGURES 26 – 27. Sarcophaga (Lipoptilocnema), male abdominal ST 5, ventral view. 26. S. (L.) koehleri. 27. S. (L.) lanei. Scale bars = 0.20 mm.