Kishenehnoasilus, Dikow, 2019

Dale E. Greenwalt, Daniel J. Bickel, Peter H. Kerr, Gregory R. Curler, Brian V. Brown, Herman de Jong, Scott J. Fitzgerald, Torsten Dikow, Michal Tkoč, Christian Kehlmaier & Dalton De Souza Amorim, 2019, Diptera of the middle Eocene Kishenehn Formation. I. Documenting of diversity at the family level, Paleontologia Electronica 22 (2), No. 50, pp. 1-56 : 28

Genus KISHENEHNOASILUS Dikow, gen. nov.

zoobank.org/ 9C563B33-C11B-4B0D-9D8B-080B10DDB05F Type species. Kishenehnoasilus bhl Dikow , gen. et sp. nov., by monotypy.

Figures 25 , 26

Etymology. Kishenehn refers to the Kishenehn formation from which this species is described, asilus is a common part of generic names in Asilidae : Asilinae. Refers to the placement of this genus in the Asilinae and is to be treated as masculine.

Holotype. USNM 624491 , deposited in the Department of Paleobiology , National Museum of Natural History (NMNH), Smithsonian Institution, Washington, District of Columbia, USA.

Type horizon. Middle Eocene Coal Creek Member, Kishenehn Formation.

Type locality. Dakin site, Middle Fork of the Flathead River (Pinnacle, Montana, USA).

Differential diagnosis. Small asilid flies, with antennal postpedicel tapered distally and a simple cylindrical stylus; compound eye posterior margin straight or slightly curved throughout; cells r 1, m 3, and cua closed and petiolate; all femora expanded; femora and tibiae with numerous macrosetae in rows; presutural and postsutural dorsocentral macrosetae present; female with ovipositor comprised of 8th and following segments.

Figures

FIGURE 25. Kishenehnoasilus bhl gen. et sp. nov., USNM 624491, female. 1, Habitus; 2, Wings; 3, Drawing of wing (composite). Scale bars equal 5.0 mm (1) and 2.0 mm (2).

FIGURE 26. Kishenehnoasilus bhl gen. et sp. nov., USNM 624491, female. 1, Terminalia; 2, Proboscis, arrows point to the distiproboscis; 3, Legs. Scale bars equal 0.5 mm (1) 1.0 mm (2) and 2.0 mm (3).