Mesa xanthogramma, Boni, 2013

Boni, M., 2013, Afrotropical taxa of the genus Mesa SAUSSURE 1892 (Hymenoptera, Tiphiidae, Myzininae), Linzer biologische Beiträge 45 (2), pp. 1657-1744 : 1699-1700

Mesa xanthogramma nov.sp.

H o l o t y p u s: Nigeria = /369 W Nigeria: Ilaro Forest 4.I.1974 J. Riley/ BMNH.

P a r a t y p i: Nigeria =; (1) / Olokemeji Ibadan Nigeria / USNM; (1) / Nigeria Akure W State X 1974 J. T. Medler coll/ BMNH .

P a r a t y p i: Nigeria = (2) / Olokemeji Ibadan Nigeria / USNM; (1) / Hgape (?) Lagos Nigeria Oct 1914 / USNM; (1) / 425 W Nigeria: Ilaro Forest 7.IV.1974 J. Riley / BMNH; (3) / Nigeria Fashola W State X-1974 J. T. Metler Coll / BMNH .

Female (Holotype): figs 263-265 . Siz 14 mm.

Black. Orange-yellow: ventral half clypeus, coolar, subapical stripe on pronotum, apical stripe (with a lateral spot just before it on 2 nd to 5 th) on 1 st to 5 th Te and 2 nd to 5 th Ste. Ferruginous apex of Tsa, scape, basal flagellomerus, mandible, the whole of legs but coxae. 6 th one is reddish brown and wrinkled but apical stripe. Wings flushed with yellow.

p: sparse with I larger than their diameter on most of the head, Sc 1, Sc 2, ventral Es 2; denser on posterior ¾ N 1 disk; very shallow and sparse on terga, which appear somehow shining, a bit more impressed on sterna. Pronotal plate and anterior third of N 1 disk with many micro p bearing short appressed whitish hair. Lateral N 1 with sparse p anteriorly, without any wrinkles on postero ventral corner which bears micro p and hair like anterior pronotal disk. P: disk having long median parallel sided furrow with area of dense small p along it, then a less p area and beside it along lateral edge a narrow area with sparse large p among many micro p bearing short appressed hair; the last set up is also on posterior surface; fine wrinkles on lateral surface where short appressed hair exist too.

mR detectable at x40 on N 1, Sc 1, Sc 2, smooth areas of P disk, terga.

coC complete; Em3 regularly covered by micro p and hair; no gradulus on 3 rd and 4 th Te.

Male: figs 266-271; body size: mm 12 mm

Black. Brown: dark portions of the legs. Yellow: ventral half clypeus with semitransparent border, most of mandible, subapical Tsa, transversal spot at the middle and small spot on anteroventral corner of N 1, ventral X 1 and X 2, partly X 3, light portions of the legs, two lateral small spots on 2 nd Te, apical stripe worn out medially on 3 rd Te, apical narrow stripes with waving fore edge on 4 th and 5 th Te. Very feeble p on head and mesosoma. P disk appearing somehow lustrous because of small shallow p with I larger than their diameter among them. No laminated keel along fore border and strong tooth on anteroventral corner of N 1. Em 3 wrinkled throughout. Apical hind femur tapering in an acute lamina

Derivatio nominis. From the Greek words ȟĮȞșȩȢ = yellow and ȖȡĮμμȒ = line because of the yellow stripe on the female metasoma.

Figures

Figs 263-265: Mesa xanthogramma: (263) habitus; (264) basal hind tarsomerus; (265) epipygium. Figs 266-271: Mesa xanthogramma: (266) head, frontal aspect; (267) pronotum, dorsal aspect; (268) epipygium, dorsal aspect; (269) gonosquama; (270) volsella; (271) aedeagus; (263: scale bar: 5mm; 265-267: scale bar: 1mm; 264, 268-271: scale bar: 0.5mm).