Basal Cyclorrhapha In Amber From The Cretaceous And Tertiary (Insecta: Diptera), And Their Relationships: Brachycera In Cretaceous Amber Part Ix David A. Grimaldi Author Grimaldi, David A. Division of Invertebrate Zoology American Museum of Natural History, New York text Bulletin of the American Museum of Natural History 2018 2018-10-24 2018 423 1 97 http://www.bioone.org/doi/10.1206/0003-0090-423.1.1 journal article 7631 10.1206/0003-0090-423.1.1 2e886aea-b59a-45a6-aeaa-2427d584a894 0003-0090 4613008 Genus Lonchopterites Grimaldi and Cumming Lonchopterites Grimaldi and Cumming, 1999: 82. Type species: L. prisca Grimaldi and Cumming, 1999 (Lebanese amber). DIAGNOSIS: (slightly revised, in italics): Antenna with aristal base situated terminally ( L. prisca Grimaldi and Cumming ) or slightly dorsally ( L. burmensis , n. sp. ); arista 2-articled, basal one minute, ringlike. Head with large pair of reclinate interfrontals; large pair of lateroclinate fronto-orbitals; ocellar setae large, inside ( L. prisca ) or outside of triangle ( L. burmensis , n. sp. ). Wing apex faintly pointed; vein C with large spinules; R 4+5 ending at tip of wing; R 2+3 and R 4+5 divergent at base of wing; M 1 and M 2 diverge near middle of wing; crossveins r-m and dm-cu lacking; anal lobe present, but small; anal vein short, incomplete. The genus is defined largely on the basis of features that are symplesiomorphic for the Lonchopteroidea . TYPE SPECIES: L. prisca Grimaldi and Cumming.