Revision of the Central American and Mexican species of the Curtonotum murinum species complex (Diptera: Curtonotidae) Author Lindsay, Kate G. Author Klymko, John Author Marshall, Stephen A. text Zootaxa 2019 2019-08-06 4651 3 531 554 journal article 26074 10.11646/zootaxa.4651.3.7 7f765e78-ebc4-4294-8a36-0a2ead654acf 1175-5326 3363423 4F0F61FD-8DC0-4FD3-B28D-2FD697F75B6D Key to the males of the Central American and Mexican species in the C . murinum species complex 1 Postpronotal lobe with patch or row of four or more well-defined setulae below prominent postpronotal setae ( Fig. 12 ); gena more than half as wide as postpedicel ( Costa Rica to Venezuela )................................ C . abrelatas sp. nov. - Postpronotal lobe without patch or row of well-defined setulae below prominent postpronotal setae, although sometimes with 3–4 thin scattered setulae ( Fig. 26 ); gena less than half as wide as postpedicel ( Mexico to Venezuela )................... 2 2 Posterior margins of abdominal tergites heavily marked, markings covering most of tergite 3 ( Fig. 51 ); arista with nine or more dorsal branches. Mexico to Costa Rica ............................................................ C. notatum - Posterior margins of abdominal tergites weakly to moderately marked, markings sparse on posterior half of tergite 3; arista with 9 or less dorsal branches ( Mexico to Venezuela )............................................................. 3 3 Male with inner lobe of surstylus very thin (10–15 times as long as wide), flat ( Fig. 36 ); distal leaf-like lobe of distiphallus sclerotized medially ( Fig. 39 ) (female unknown) ( Mexico )..................................... C . prolixum sp. nov . - Male with inner lobe of surstylus thin (6–8 times as long as wide), wedge shaped ( Fig. 28 ); leaf-like lobe of distiphallus sclerotized on left side (female unknown) ( Mexico to Venezuela ).................................................... 4 4 Male with distal leaf-like lobe of distiphallus squat, asymmetrical; lower projection at base of lobe thin, sclerotized and reflexed ( Fig. 31 ) ( Mexico to Venezuela )............................................................ C . irksum sp. nov . - Male with distal leaf-like lobe of distiphallus elongate, symmetrical; lower projection at base of lobe squat, membranous and folded ( Fig. 46 ) ( Mexico to Belize )........................................................ C . transitus sp. nov.