. Bulletin of the Natural History Museum Geology. . Fig. 3 Mesevania swinhoei new species, holotype (Scales: mm) , Burmese amber, a, Head, antenna and foreleg; b, Hind tibia, inner face; c, Forewing veins and cells. Cell names. BC: basal cell, DC: discoidal cell, MC: marginal cell, SDC: subdiscoidal cell, SMC: submarginal cell. Rasnitsyn, from the Lower Cretaceous of Mongolia (Rasnitsyn, 1991), is possibly similar to Mesevania in this respect. Although the only known fossil of Praevania is incomplete, it can be distinguished easily from Mesevania in having a long 3rd submarginal ce
. Bulletin of the Natural History Museum Geology. . Fig. 3 Mesevania swinhoei new species, holotype (Scales: mm) , Burmese amber, a, Head, antenna and foreleg; b, Hind tibia, inner face; c, Forewing veins and cells. Cell names. BC: basal cell, DC: discoidal cell, MC: marginal cell, SDC: subdiscoidal cell, SMC: submarginal cell. Rasnitsyn, from the Lower Cretaceous of Mongolia (Rasnitsyn, 1991), is possibly similar to Mesevania in this respect. Although the only known fossil of Praevania is incomplete, it can be distinguished easily from Mesevania in having a long 3rd submarginal cell, forewing vein 2r-rs being closer to vein 2rs-m (Fig. 4b), and in having a much longer ovipositor. Polymerous antenna can also be seen in the Praeaulacidae. The shape of the scape of Mesevania is rather similar to that of aulacids, though much shorter. Mesevania can be differen- tiated from the Praeaulacidae by the short pronotum and by the insertion of the petiole closer to the metanotum. Cretevaniidae differ from Evaniidae (including Mesevania) by the petiole being ex- panded subapically, and by the very different forewing venation with a narrow marginal cell and straight vein Rs which is more or less in line with lrs-m. Unfortunately, a prominent synapomorphy known for the Evaniidae, the presence of the jugal lobe at the base of both fore- and hindwing, cannot be seen in the specimen described here because of the orientation of the inclusion. However, the massive mesosoma, lack of a conspicuous 'neck', presence of a long and slender petiole, high attachment of metasoma to propodeum, small metasoma and relatively short ovipositor, together with its general habitus, best relate this new genus to the Evaniidae. Mesevania swinhoei Basibuyuk & Rasnitsyn, sp. nov Figs 1-3 Name. After Swinhoe, who presented the holotype to The Natural History Museum in 1920. Type material. Holotype , Department of Palaeontol- ogy, NHM, London. Locality and HORIZON. Burmese amb
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