Tiphiidae wasps of Madagascar (Hymenoptera, Tiphiidae) Author Kimsey, Lynn S. Bohart Museum of Entomology, Department of Entomology, One Shields Ave., University of California, Davis 95616, USA lskimsey@ucdavis.edu text Journal of Hymenoptera Research 2011 2011-09-28 22 45 68 http://dx.doi.org/10.3897/jhr.22.1142 journal article http://dx.doi.org/10.3897/jhr.22.1142 1314-2607-22-45 74EBB28B6B1A4390B4D8A17BC5130AFF EE0E00246F5E3971DE7D01159B5DFD06 574753 Genus Mesa Saussure Fig. 4 Mesa Saussure 1890 : 244. Type species: Mesa heterogamia Saussure 1890 , designated by Krombein 1937 . Discussion. The genus Mesa is found from the Afrotropical Region, including Madagascar, north and east into Iran and Myanmar. Mesa males are characterized by having metasomal segment I more than three times as long as broad and the terga without a transverse subbasal carina or ridge. Hosts are unknown for the genus. Although Bartalucci (2005) removed Mesa hova (Turner) from synonymy under Mesa nodosa ( Guerin de Meneville 1837) he did not clearly describe the male and it is unclear, which male is associated with the female type of Mesa hova . Key to species of Mesa (males)

1	Metasomal sternum I basally with narrow punctate groove, margined with longitudinal carinae; clypeal apex and some metasomal terga with whitish markings	Mesa saussurei (Turner)
-	Metasomal tergum I basally evenly convex, without longitudinal carinae or groove; clypeus and metasoma entirely black	2
2	Tegula and tibiae with some whitish markings; body 13 mm long or shorter; propodeal posterior face densely punctuate, not rugose	Mesa nodosa ( Guerin de Meneville)
-	Tegula and tibiae without whitish markings; body longer than 15 mm; propodeal posterior face rugosopunctate	3
3	Paramere broadest apically, apically truncate; cuspis inner surface with scale-like setae	Mesa krombeini Bartalucci
-	Paramere broadest submedially or subapically, tapering apically; cuspis inner surface without scale-like setae	4
4	Pygidium delimited by lateral carina extending two-thirds distance from apex to exposed base; metepimeron rugulose; paramere apically hooked	Mesa tandrona Krombein
-	Pygidium delimited by lateral carina extending less than half distance from apex to exposed base; metepimeron smooth; paramere not apically hooked	5
5	Pygidium apical emargination shallow, broad, twice as wide as deep; foretibia reddish, with whitish marks basally and apically	Mesa marovatana Krombein
-	Pygidium apical emargination deep, narrow, nearly as deep as wide; foretibia red, without whitish markings	Mesa madecassa Krombein

Checklist of Mesa species 1. Mesa hova (Turner) 1908:504. ( Plesia ). Holotype female; Madagascar: Tamatave (LONDON). Synonymized by Krombein 1949 . Removed from synonymy under Mesa nodosa by Bartalucci 2005 . Distribution: Antsiranana, Finanarantsoa, Mahajanga and Toliara Provinces. 2. Mesa krombeini Bartalucci 2005 :1086. Holotype male; Madagascar: Tananarive (ITHACA). Based on paratype males of Mesa seyrigi Krombein 1949 . Distribution: Antanarivo and Toliara Provinces. 3. Mesa madecassa Krombein 1949 :66. Holotype male; Madagascar: Bekily (ITHACA). Distribution: Fianarantsoa Prov. 4. Mesa marovatana Krombein 1949 :68. Holotype male; Madagascar: Tananarive (ITHACA). Distribution: Antsiranana, Fianarantsoa, Mahajanga, Toliara Provinces. 5. Mesa nodosa ( Guerin Meneville ) 1837:584. ( Myzine ). Lectotype male (designated by Bartalucci 2005 ); Madagascar, Goudot (PARIS). Distribution: Antsiranana, Fianarantsoa Provinces. 6. Mesa saussurei (Turner) 1910:394. ( Plesia ). Holotype female; Madagascar: Tananarive (BERLIN). Distribution: Diego Suarez, Mahajanga, Toamasina and Toliara Provinces. 7. Mesa tandrona Krombein 1949 :69. Holotype male; Madagascar: Vallee de Riviere Sambirano (ITHACA). Distribution: Antsiranana, Fianarantsoa and Toliara Provinces.