Mesa incisa ( CAMERON 1905) Boni, 2013

Boni, M., 2013, Afrotropical taxa of the genus Mesa SAUSSURE 1892 (Hymenoptera, Tiphiidae, Myzininae), Linzer biologische Beiträge 45 (2), pp. 1657-1744 : 1685

Mesa incisa ( CAMERON 1905) comb.nov.

Plesia incisa CAMERON 1905: 320 . T y p u s - South Africa, Albany Museum.

Elis ( Mesa ) longiventris TURNER 1912: 712. Lectotypus (here designated in order to ensure name proper and consistent use) - South Africa = /Willowmore Capland Dr. Brauns/ /Brauns Coll. 1912-44/ / Elis longiventris Turn Type / (autographic) /Type/ (rounded wit red outer ring) /17/ /Elis ( Mesa ) longiventris, Turn./ BMNH. Syn.nov.

Elis (Mesa) incisa: TURNER (1912: 713) .

M a t e r i a l.. Namibia = (1) /SW Africa Cape Town Beaufort west 1.V.1934 J. Ogilvie/ / Mesa incisa (Cam) det 1947 C:J:Guillarmod/ BMNH; (2) /Okahandja 27.1- 2.11.1928 / /S. Afric RE Turner Brit Mus 1921-247/ /Elis ( Mesa ) longiventris Turn/ BMNH; South Africa = (1) / Cape Province Matjess Fontein 7-13.XI.1928 / /S. Afric RE Turner Brit Mus 1928-522/ /Elis ( Mesa ) longiventris Turn/ / Mesa incisa (Cam) det 1947 C.J. Guillarmod/ BMNH; (1) / Cape Prov. Mossel bay 4.XI.1938 / /S. Africa R.E. Turner Brit. Mus. 1939-56/ BMNH; (1) /Spitzkop Loingsburg SA Museum – Mus. Staff Mar. 1937 / / Mesa incisa Cam. C.J. Guillarmod det 1945/ /A003353/ SAM; (1) /Mossel bay S. Africa Mar-Apr 1930 R.E. Turner/ /Cornell U. lot.805/ CUIC.

. Namibia = (1) / Namibia Khorixas Distr. Huab river at Krone 721 20°07’09S 13°54’21E 23- 26.X.1998 Kirk Spriggs & Marais malaise Trap sample/ NNIC; South Africa = (1) /Ceres Cape Province 3500 ft Jan 1921 / /S. Afric. R.E. Turner Brit Mus 1921-78/ /Elis ( Mesa ) longiventris Turn/ BMNH; (1) /Mossel bay Cape province May 1921 / /S. Afric RE Turner Brit Mus 1921-248/ /Elis ( Mesa ) longiventris Turn/ / Mesa incisa (Cam) det 1947 C.J. Guillarmod/ BMNH; (1) /Mossel Bay Cape Province Sept 1921 / /S. Afric. R.E. Turner Brit Mus 1921-412/ BMNH; (1) /Mossel Bay Cape Province Dec 1921 / /S. Afric. R.E. Turner Brit Mus 1922-25/ BMNH; (1) / Cape Prov. Mossel bay 16.XII.1938 / /S. Africa R.E. Turner Brit. Mus. 1939-56/ BMNH; (10) / South Africa Cape Seven weeks Poort. 20 may 1964 SA MuseumExp./ SAM (9) MZUF (1); (1) / South Africa W Cape Constantiaberg L80 500 m 34°02’S 18°23?E/ SAM; (1) /S. Africa Cape P. Brand Fontein Reserve 36°40’S 19°62’E 16-18 October 1992 S. Van Noort/ SAM; (1) /Ceres Lightfoot – 1917/ / Elis longiventris Turn./ /R.E. Turner determ/ / Mesa incisa Cam. C.J. Guillarmod det 1945/ /A003353/ SAM.

Female: figs 99- 101 . Male: figs 102-104.

Many specimens of both sexes exist at BMNH and SAM so labelled by JACOT- GUILLARMOD. Lectotype of E. (M.) longiventris has identical character states (genitalia enclosed) with male specimens labelled M. incisa by JACOT GUILLARMOD who very probably examined the type at Albany Museum, inaccessible to me. To confirm the aforesaid synonymy with E. longiventris, performed by him just in labels and never published, appears to be the best action to do.

Females have complete cOc and 6 th tergum without wrinkles. Gradulus on 3 rd tergum too. Males are slender with semitransparent ventral border of clypeus, no lamella along foreborder of N1 disk, notched epipygium, pale yellow light markings.

Figures

Figs 99-101: Mesa incisa: (99) habitus; (100) basal hindtarsomerus; (101) epipygium. Figs 102- 104: Mesa incisa: (102) gonosquama; (103) volsella: (104) aedeagus; (99: scale bar: 5 mm; 101: scale bar: 1 mm; 100, 102-104: scale bar: 0,5 mm).