A review of the Afrotropical genus Aristobatina Verbeke (Diptera: Micropezidae: Taeniapterinae), with descriptions of four new species from the Eastern Arc Mountains of Tanzania Author Marshall, Stephen A. School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada N 1 G 2 W 1 samarsha@uoguelph.ca text African Invertebrates 2014 2014-05-28 55 1 143 143 http://www.bioone.org/doi/abs/10.5733/afin.055.0108 journal article 55280 10.5733/afin.055.0108 00de24a2-1da8-4926-9425-9eb5c7b8dc35 2305-2562 7661736 Genus Aristobatina Verbeke Aristobatina : Verbeke 1951: 57 . Type species: Aristobata principalis Frey, 1929 , by original designation. Diagnosis: Relatively large Taeniapterinae ( 11–16 mm ), with abdomen strongly to weakly petiolate. Head : Arista bare; clypeus strongly convex, entirely microsetulose; palpus parallelsided, densely microsetulose, with a few small setulae, but lacking outstanding setae; lower frons flat, projecting slightly anterior to eyes, supra­antennal shelf distinct; frontal vitta with small, elevated area restricted to upper ½; lower ½ of frons flat with straight margin; 2 pairs of fronto-orbital setae, posterior pair usually at or behind level of ocelli. Thorax : Legs cylindrical, without longitudinal grooves on tibiae or femora; tarsomere 1 of foreleg white, longer than remaining tarsomeres combined; postpronotum with a few minute setulae only; 1 distinct dorsocentral seta, 2 notopleural setae, 1 supra­alar and 1 postalar seta. Wing : Anal cell short, broad, bare. Female postabdomen : 2 large spermathecae with prominently studded ducts and single smaller spermatheca of similar shape and ornamentation. Bursa copulatrix simple, ventral receptacle small and widely separated from the separate spermathecal ducts. Male terminalia : Genital fork (sternite 5) of known males with medial surface densely clothed in stout, short setae; phallus characteristically shaped, with distally bifid basal distiphallus and strongly recurved distal distiphallus terminating in a spinulose swelling (“glans”); known males with basiphallus extending beyond base of distiphallus.